Mt Fuji: You don’t have to be a fool to climb it twice

Posted on by
2

I am back from my second climb of Mt Fuji. All the 26 members of our hiking group (from age 8 to about 70) made it to the top and back down again. We started from the Fujinomiya 5th stage and also returned via there. My first climb had been about 11 months ago.

On the first day we hiked from 2400 m to 3460 m in about 5 hours. Then around 3:20am the second day we set off from the 9th stage mountain hut, ascending another 300 m of altitude in darkness to reach the peak before sunrise.

After descending back down to the 9th stage we hiked over to Mt Hoei, a crater on the side of Mt Fuji created by the most recent eruption in the 18th century.

I had never seen the eruption site of Mt Hoei from close up and it looked most impressive. Much of the hiking was in what looked like fog but was the clouds that surrounded the mountain. We had lots of views on to a sea of clouds from the top.

A lot of people suffer from altitude sickness on Mt Fuji because there is about 35% less oxygen at the top than at sea level, which in combination with the exercise leads to rapid breathing that can turn the blood alkaline (CO2 depletion). Above 3400 m I too got a headache at times, but unlike my Japanese friends I never used canned oxygen during this hike.

The weather was ideal, but it was still only a cool 12 degrees C in the sunny afternoon at the mountain hut and below freezing at the top before sunrise, with strong wind (I saw frozen puddles). Imagine going from a hot humid summer day in Tokyo to a cold windy February night within just a couple of hours and you have a good idea of the contrasts of a Fuji climb. Winter clothes are definitely needed for a sunrise climb, the warmer the better. Good hiking boots are recommended at any time and don’t forget your camera!

Ultegra Di2 versus Alfine 11 Di2

Posted on by
1

I just saw a post by Bike Friday head designer Rob English about Ultegra Di2 becoming available on their high end folding bikes. Di2 is Shimano’s electronic gear shift system. The first version appeared on their high end Dura Ace group set used by professional racers. The latest Ultegra Di2 is more affordable, but it’s still not cheap (about US$2,300 vs. $4,000 for the group set). A few months ago my son had the chance to take the Di2-equipped 700C bike of my friend Eric of the GS Astuto team for a spin and simply loved it. Gear changes were so quick and precise and the front derailleur adjusts as you switch through the cassette at the rear. No manual trimming is ever required to avoid chain rub. You never mess up any gear shifts, even under load. Once set up the system remains precisely tuned, with no maintenance required for months.

Some cyclists are skeptical about electronic shifting because it involves batteries. That’s somewhat understandable, since as users of mobile phones and digital cameras we have all experienced running out of charge, often when it’s most inconvenient. However, from what I hear one charge of the Di2 battery should last you about 1,000 km of cycling, far further than the average car fuel tank. A battery that lasts weeks and months should be good enough for most people. What’s more, even if you do run out of power you first get ample warning. For instance, the front derailleur stops working before you will run out of juice for the more important rear derailleur. The ideal setup of course would be electronic shifting combined with a dynamo hub. You would get all the benefits of an electronic system with the self-sufficiency of an all mechanical setup.

After Ultegra Di2, some people were hoping for Shimano to announce a 105 version of Di2 as the next step of digital shifting for the masses (105 is the next road group below Dura Ace and Ultegra), but instead Shimano chose to announce Alfine 11 Di2 (Shimano SG-S705), an electronic version of its 11 speed internal geared hub (IGH), the mechanical version of which had been launched in 2010.

Alfine 11 Di2 addresses the vast city and commuter market, but it should also be interesting for road, touring and mountain bikes. IGHs do without a vulnerable derailleur and require less maintenance. The Alfine 11 gear range (low to high) of 1:4.09 is wider than the 1:3.74 spread of a compact crank (50/34) with a 11-28 cassette. Unlike the mechanical version, Ultegra Di2 does not yet support triple cranks and bigger cassettes can only be done via non-standard hacks.

I recently rode some insanely steep hills west of Tokyo (18-20%), which I could not possibly have managed without the lowest gear of my triple cranks setup (50/39/30 and 11-28 with 20″ 451 wheels). Therefore I think I would be more interested in Alfine 11 Di2, even if Ultegra Di2 will be more appealing to road bike purists.

Of islands and panda bears

Posted on by
Reply

Tokyo governor Ishihara Shintaro, a nationalist politician who is never shy when given half a chance to upset the Chinese government, recently suggested that a new born panda baby at Ueno zoo should be named “Sen Sen” or “Kaku Kaku” after the Senkaku islands controlled by Japan, but claimed by both mainland China and Taiwan. Panda bears are traditionally given names consisting of two identical Chinese characters.

Ishihara’s provokative suggestion predictably led to an angry response from the Chinese government, but that probably only enhanced his standing amongst Japanese nationalists. Nevertheless, I have to question how smart it is to name something after the disputed islands that does actually belong to China: The parents of the panda baby are not owned by the Japanese zoo but only leased from China. The baby too belongs to China and will have to be sent there once it is two years old. Naming something that will have to be handed over to China after islands that Japan intends to keep may not exactly be the smartest move 😉

300 km in a day around Mt Fuji on a Bike Friday

Posted on by
5

In the evening of last Sunday I returned from my first brevet ride, a long distance cycling event. I was sunburnt, exhausted and dead tired. The event was BRM519 NishiTokyo 300 km Fuji, a 300 km brevet around Mt Fuji staged by Audax Japan NishiTokyo. It was quite a mountainous course, with 2800 m (9200 ft) of climbing (see map). Also participating was my friend Jose, but we rode separately for most of the course because he is faster. In preparation for this event I had done three training rides (227 km, 200 km and 235 km) since March that followed at least part of the route, one of them with Jose, whose company and advice has been invaluable.

From Machida in western Tokyo we rode down to Enoshima on the Pacific coast, followed the coast to Odawara and climbed up to Gotemba. From there we rode down to the coast near Numazu, followed the coast to Fujikawa, then headed north on a long climb on the extended slopes on the west side of Mt Fuji. From over 1100 m on the NW of Fuji the road descends to Fujiyoshida and further down to Tsuru. The final stretch follows mountainous R35 to Sagamiko (extremely steep in places but great descents) and climbs over Otarumi Toge on R20 near Mt Takao (which seems trivial after all the previous climbing).

Though the 15 km/h minimum pace implied by the 20 hour time limit may seem modest, it includes all food and sleep breaks and a course with plenty of climbing. The people who design these courses like back roads and hills. Some of the R35 climbs I was crawling up at 6.5 km/h in my granny gear. You go uphill for 2 hours before Gotemba and 4 hours solid at Mt Fuji, which you can never make up on faster downhills from there. The 22:00 start means the first 6 1/2 hours are at night, so not only do you need proper lights, you also lost a night of sleep.

Lack of sleep proved to be much more of a challenge than distance or elevation. If there was one thing I’d do differently next time, it would be to make sure I get a good few hours sleep during daytime before the night time start. I had meant to do that, but instead spent that time running around looking for extra lights, as I found out from Jose that I needed two lights at the front and two at the rear (one of which could be on the helmet). The first rear light I bought didn’t work when I tried it at home, so I returned it and got a another and finally had only napped 20 minutes before I took the train to Machida.

At the brevet reception:

People there were very friendly, though they were quite surprised I wanted to ride the brevet on a small wheeled folding bike. 80 people had signed up for the ride. I received my brevet card and instructions on how to gather receipts at the unmanned checkpoints (PC = point de contrôle).

After a group briefing each bike and rider was checked to make sure we met all the conditions about lights, bells, reflective clothing, etc. Then we were off into the night.

Jose and I were riding together for the first couple of km, but separated soon when I stopped to remove a layer as I was warming up. There were plenty of fellow riders for following a lead rider. With the pace at which we were going towards the coast (except for traffic lights), I was feeling like I was on the Enoshima Express train 🙂 We got there a little before midnight. I got my brevet card signed (this was the only manned checkpoint) and I refilled my water bottles at the public toilet where PC1 was located, then headed off with Jose and another rider after a few minutes. I soon dropped off again and rode by myself until other riders came along around 10 km before Odawara, where PC2 was located.

PC2-PC4 were unmanned, that means they were convenience stores where you buy some food or drink, making sure to keep the receipt to prove when you were there. Nevertheless the ride organisers came by car to join us at each of these stops, to check everyone was doing OK and to offer encouragement.

From Odawara the climb to Gotemba starts very gentle, but continues for 30 km for an altitude gain of 460 m. I was lucky to end up riding in a group of 5 that set a good pace I could keep up with. As the route got steeper though, I had to work harder and harder and drafting made less difference, so I waived the rider behind me to pass and continued on my own. Somewhere along the way I came across Jose, who was just about to lie down and take a nap in a bus shelter. As it got colder during the night I put on my trousers from my rain gear.

Somewhere along the 25 km route from Gotemba to the coast the sun came up and I could see Mt Fuji:

I led another rider at a good speed, but was feeling the lack of sleep as I was cycling along the coast. We crossed Fuji river and headed up inland towards the next unmanned checkpoint (PC3).

A fellow brevet rider at PC3:

Before the longest climb:

The 1100 m climb from sea level, starting at about the halfway point of the 300 km up to the pass above Lake Motosu was the hardest part of the ride. The scenery is beautiful though, with many dairy farms. The smell of cow dung reminded me of my home village 🙂

Lake Motosu from the pass:

During the climb I got so sleepy, I had to find a spot to lie down and catch a nap (a slab of concrete next to a rice paddy, with my rinko bag as a pillow), as I felt it wasn’t safe to continue in my state. The same thing happened again on R35 between Tsuru and Sagamiko. I had been 1 1/2 hours ahead of the minimum pace of 15 km/h at PC2 before Mt Fuji, but after those naps didn’t know if I would still make the time limit until almost the very end, when I fought traffic in Machida to make it back by 18:00.

I was so glad when I got back safely and it was all over. I had done well with my training, with eating and drinking and with navigation, but managing naps is definitely something I’ll need to learn if I am to ride brevets again.

I am also looking forward to trying proper cycling shorts which I’ve got on order. Cotton underwear rubbing against certain parts of the male anatomy did become irritating towards the end of the ride. Also, I’ll need something other than a back pack for my stuff, because my shoulders got itchy from the straps, especially with the sweat in warm weather.

They say any brevet over 200 km isn’t much fun and they’re probably right, unless you’re a bit of a masochist. Riding brevets adds a number of challenges beyond personal long distance rides, such as managing time (including sleeping time). It tests planning and self discipline as much as cycling skills. It does give you an excuse for a bunch of long training rides in the mountains. On the brevet itself you’ll meet some extremely nice people who enjoy cycling very, very much. The brevet was almost as hard as my first climb of Mt Fuji last year and “fun” is maybe not the right word to describe it, yet I would definitely recommend giving it a try at least once if you like long rides at a pace that mere mortals can still train for.

Links:

235 km a day on my Bike Friday

Posted on by
7

A couple of weeks ago I did my longest ride on the Bike Friday yet – 235 km in a day, across the mountains west of Tokyo to a lake near Mt Fuji during the cherry blossom (sakura) season. This was part of my training for a 300 km brevet ride coming up this month. It was a beautiful ride, one of my most enjoyable so far.

Sakura (cherry blossoms) on route 413:

It took me about 16 hours, of which 14 hours were moving time. I had left home at 05:20 and was back in Tokyo at 21:20 (9:20pm). My Pocket Rocket has a Shimano hub dynamo and a Lumotec IQ Cyo headlamp which provided plenty of light on the last stretch after sunset.

Here is my route. I started from my house in Tokyo after sunrise and cycled out to the mountains some 40 km away, then followed Route 413 up a mountain valley and over a pass over 1100 m (3600 ft) high. I was climbing from virtually sea level (45 m or 150 ft) to 1.1 km high. I was cycling almost continually uphill for the first 96 km (60 miles). After 7 hours (including quite a number of brief stops for food, rest and pictures) I reached the highest pass.

More sakura:

I always want to see the remaining distance:

The exit of the tunnel at the end of The Longest Climb: It’s all downhill from here… NOT!

The shores of Lake Yamanaka at the foot of Mt Fuji, over 900 m (3000 ft) above sea level:

It can be surprizingly difficult to sea Mt Fuji (3776 m high) from just a few km away because of its frequent cloud cover. I cycled 235 km and all I saw of Fuji is this (its foot):

Almost home – at the top of the Mt Takao pass:

The humble Bike Friday Pocket Rocket:

and its crazy rider:

The ABC of distance riding: Always Be Consuming!

There is nothing exceptional about cycling this kind of distance. The key is eating and drinking sufficiently. Most people who first try long distances become exhausted not because of insufficient training, but because they simply eat and drink too little. The energy reserves in your body only last so long. Three meals a day will not cover the continuous energy use of long distance riding. You need to consume about 200-300 kcal per hour and sufficient liquids.

I carried water in two bottle holders, which I refilled whenever I could. Throughout the day I ate: 7 bananas, 6 raisin bread rolls, 360 g of yoghurt, a slice of pizza and several other pieces of bread. I drank about 4 litres of water, orange juice, cocoa, yoghurt drink and sports drink. Don’t worry too much about putting on weight while burning 6500 kcal. I am 10 kg (22 lbs) lighter now than I was the year before I got the bike. I’ve been dropping about one kg a month since I got the bike.

Stick to a speed you can sustain. I am not a fast rider, doing mostly 23-25 km/h on the flat (about 15 mph), with down to as little as 9 km/h (6 mph) on steep climbs, but that doesn’t stop me from going out to see nature, lots of it. I don’t go out there to set speed records, but to see the country, smell the trees and the ocean, view the rivers and mountains and bring back some pictures. Why settle for 3-6 hours when I can enjoy it the whole day?

Long rides on a folding bike

I did this 235 km ride a little over half a year after getting the Pocket Rocket, my first road bike in over 30 years. Some people are surprised that I do these rides on a folding bike. I usually point out that my house is small and a bike with small wheels is easier to store indoors. This is not just my touring bike but also my shopping bike. Almost daily I cycle to shops and carry my groceries home in a back pack. Other people may have a garage with several different bikes for different purposes, but I don’t.

The other part of the answer is that the Bike Friday is no ordinary folding bike. It has the geometry of a regular road bike and it rides like one, but also happens to fold and can even be packed into a regular size suitcase (which I’ve not done yet). It may not fold quite as compactly or as quickly as say a Brompton or Bike Friday’s smaller Tikit, bikes optimized for intermodal commuting, but it is much more suitable for going fast and far. Drop handles offer many different hand positions, which keeps your arms and back comfortable for longer. The wide range gearing with triple chain rings on the front and a 9 speed cassette at the back make it possible to climb steep mountains without too much strain on my knees but still go fast elsewhere. I love my Brooks leather saddle which keeps my bottom happy even after a whole day on the bike.

Ultimately however, it is not about the bike, but about you. If you want to ride more and further, you can do it on almost any bike. A bicycle is a tool. I’ve done a couple of 50 km rides on shopping bikes. When my son was still in Junior High School he once went on a 110 km trip (Yokohama to Enoshima and back) with some friends on a single speed folder. If you have a nice bike, you are more likely to ride it more often because it’s more enjoyable, but whether you ride it at all is still up to you. The type of bike makes no difference if you’re too lazy to ride, as I became once I got into cars, back in my 20s.

If you like longer rides, give them a try on whatever bike you have. If you find that you enjoy these tours and would like a more suitable bike, get a good one and you will not regret it.

Japan without nuclear power

Posted on by
Reply

Since last weekend, Japan is without a single nuclear power station feeding power into the grid, the first time in 42 years. All 50 nuclear power stations are currently off-line (this count does not include the 4 wrecked reactors in Fukushima I, which are no longer officially counted — it used to be 54 nuclear power stations).

Some of these power stations were shut down because of problems after the March 11, 2011 earthquake and tsunami. Others were taken offline one by one for routine inspections and maintenance but have not been started up again, which would only happen with the consent of nearby local governments. That consent has not been forthcoming.

Electrical utilities and the government are raising concerns about a power shortage when the summer heat sets in, which usually results in peak usage for air conditioners. Critics of nuclear power see an opportunity for a quick exit from nuclear power. Others are concerned that if the government rushes to bring power stations back online before the summer without safety upgrades and a change in the regulatory regime, a unique chance to prevent the next nuclear disaster will be squandered. If upgrades and reforms don’t happen when the memory of Fukushima is still relatively fresh, what’s the chance of it happening a few years down the road?

The utility companies are facing high costs from buying more fossil fuels for gas and oil fired thermal power stations to cover the demand; restarting the nuclear power stations would keep those costs in check. But that is only part of the reason they are keen on a restart. The sooner they can return to the pre-Fukushima state of power generation, the less leverage governments and the public have for making them accept new rules, such as retrofitting filters for emergency venting systems or a permanent shutdown of the oldest and seismically most vulnerable stations. Because of this it’s in the interest of the utilities to paint as bleak a picture of the situation as possible. Japan would be smart to proceed cautiously and not miss a unique chance to fix the problems that are the root cause of the Fukushima disaster and of disasters still waiting to happen.

What is Skipity and why is it in FireFox?

Posted on by
2

I mostly use Google Chrome these days, but still have Mozilla FireFox installed as a browser, which used to be my standard browser before I switched to Chrome.

Today I launched FireFox again and was surprised to see something called Skipity in its toolbar. Furthermore, when I tried to go to my browser custom start page (a page with my most useful links) it took me to the Skipity website. A Google search showed that Skipity comes as part of an add-on called “Download Youtube video 12.0”. I removed that add-on, restarted FireFox, opened the URL I previously had as the browser start page and went to “Tools > Options > General > Startup” to select that URL as the start page again.

Any software that changes the start page of the browser without your consent should be permanently banned from your computer!

Brand merchandise blog spam from China

Posted on by
3

Spammers in China are trying to promote websites selling counterfeit brand merchandise by posting numerous blog and guestbook spam comments with links to their sites. For example, the following domains were recently advertised by a spammer using IP address 117.28.249.102 in China:

  • 2012michaelkorsoutlet.com
  • coachfactoryonlinesoutlet.com
  • discount-christianlouboutinoutlet.com
  • longchampsaleoutlet2012.com
  • michaelkors-outletonline.com

Don’t buy from such sites. You’re handing your credit card details to criminals and spammers. Even if the sellers were to send out merchandise (which they may not bother with, as they can always claim it was impounded by customs), it tends to be of low quality. It may indeed get confiscated by customs and you could be fined.

Here are many more domains like that:

  • 2011coachbags2010.com
  • 2012coachonlineoutlet.com
  • 2012coachoutletonline.info
  • 2012michaelkorsoutlet.com
  • authenticcoach-ebags.com
  • chaussurellouboutinpascher.com
  • chaussurevslouboutinpascher.com
  • cheap-christianlouboutinoutlet.net
  • cheapchristianlouboutinoutlet.com
  • cheapcoachhandbag.net
  • cheaplouboutinsonsale.org
  • cheapuggbootsoutlet111.info
  • christian-louboutin-outlets.org
  • christian-louboutin-shoes-ireland.com
  • christian-louboutin-shoesstore.com
  • christian-louboutin.cc
  • christianalouboutinpascher.com
  • christianlouboutin-shoes-uk.net
  • christianlouboutinak.com
  • christianlouboutinbrownthomas.com
  • christianlouboutinck.com
  • christianlouboutindiscount-outlet.com
  • christianlouboutinfemmes.com
  • christianlouboutinidanmark.com
  • christianlouboutinkaufendeutschland.com
  • christianlouboutinmode.com
  • christianlouboutinoutletboots.com
  • christianlouboutinoutletnorge.com
  • christianlouboutinoutletschweiz.com
  • christianlouboutinsaleclearance.com
  • christianlouboutinsaleoutletonline.com
  • christianlouboutinsaleus.info
  • christianlouboutinshoesinfo.com
  • christianlouboutinskorsverige.com
  • christianlouboutinssaleuk1.net
  • christianlouboutinssko.com
  • christianlouboutinuk-sales.com
  • christianlouboutinuk2012.org
  • christianlouboutinvk.com
  • christianolouboutinpascher.com
  • christianslouboutincheap.com
  • christianzlouboutinpascher.com
  • coach-factoryoutletonlines.com
  • coach-factoryoutlets.org
  • coach-factoryoutletstores.com
  • coach-outlet-store-factory.com
  • coach-outletstore-factory.com
  • coach-purseoutlet.com
  • coach-store-outletonline.com
  • coachbagclearancesite.com
  • coachbagscheapjp.com
  • coachbagsfactoryjp.com
  • coachbagshandbags2012.info
  • coachbagsonsalejp.com
  • coachbagsoutletsg.net
  • coachbagsstorejp.com
  • coachbagsvsale.com
  • coachcoachfactoryoutlet.com
  • coachcoachoutlet.org
  • coachcoachoutletbags.com
  • coachfactoryonlinesoutlet.com
  • coachfactoryoutletoutlet.com
  • coachfactoryoutlets-online.net
  • coachfactoryoutletsonlines.us
  • coachhandbagsale.org
  • coachhandbagsforcheap.net
  • coachhandbagsrjp.com
  • coachjpbags.com
  • coachjphandbags.com
  • coachoutletclearance.com
  • coachoutletfactory.org
  • coachoutletfactoryus.com
  • coachoutlethandbags-store.com
  • coachoutletonline.net
  • coachoutletonline111.info
  • coachoutletonline2.info
  • coachoutletonline2012.com
  • coachoutletonline2012.info
  • coachoutletonlinecoo.com
  • coachoutletonliner.net
  • coachoutletonlinestore2012.info
  • coachoutletstoreonlinev.com
  • coachoutletv.net
  • coachpursesoutletsale.com
  • coachs-outlets-online.us
  • coachsfactoryoutletstore.com
  • coachsfactoryoutletstore.us
  • coachsoutlet-online.us
  • coachsoutlet-storeonline.com
  • coachsoutletstore.com
  • coachstore-online-outlet.com
  • coachstore-onlineoutlet.com
  • coachstoreoutletv.com
  • discount-christianlouboutinoutlet.com
  • discountuggs-outlet.com
  • louboutinireland.com
  • louboutinprix-fr.com
  • louboutinshoesstoresjp.com
  • lrechristianlouboutin.com
  • michaelkors-handbagsoutlet.com
  • michaelkors-outletonline.com
  • michaelkorsoutlet-online.com
  • michaelkorsoutlet-sale.com
  • michaelkorsoutletcheap.com
  • michaelkorsoutletjp.com
  • olcoachbagsoutlet.com
  • online-coach-handbags.com
  • outletchristianlouboutinsales.com
  • outletcoachhandbag.net
  • salechristianlouboutinoutletonline.com
  • salemichaelkorsroutlet.com
  • saleschristianlouboutinoutlet.com
  • store-uggoutlet.com
  • ugg-bootsoutletclearance.com
  • ugg-bootsoutletclearance.info
  • ugg-saleoutlet.com
  • uggfactoryoutletonline.com
  • uggoutletface.com
  • uggoutletonline.info
  • uggoutletonline111.info
  • uggoutletonline2012.info
  • uggoutletonlines.info
  • uggoutletonlinesale.info
  • uggoutletstore20.info
  • uggpascherdutout.com
  • uggs-outlet-stores-online.net
  • uggs-outletstores.info
  • uggsonsaleoutlet.info
  • uggsoutlet-online.info
  • uggsoutletdeutschland.com
  • uggsoutletface.com
  • uggsoutletinrotterdam.com
  • uggsoutletonlinestore11.info
  • ukchristianlouboutin4sale.com

Using Sanyo Eneloop Ni-MH AA batteries to power your mobile phone

Posted on by
4

About two years ago I started using Sanyo’s rechargeable eneloop batteries. These relatively inexpensive Nickel-Metal Hydride (Ni-MH) cells are available in both AA (単3形) and AAA (単4形) sizes. They are low self-discharge cells that keep their charge for months when not in use. I’ve bought boxes of 8 cells of either type, for use in flash lights, bike blinkies, helmet lights and Bluetooth keyboards.

They are initially more expensive to buy than regular alkaline (primary) cells, but you only need to re-use them about three times before they work out much cheaper than primary cells, while you can actually recharge them hundreds of times before they start losing significant capacity.

Here are some nice gadgets that will take them, which I found sold in convenience stores here Japan.

These little cases (by alicty.co.jp) take power from two or three regular alkaline AA or Ni-MH AA cells and provide a USB port for powering mobile phones and other small gadgets with a USB power cable. As you would expect, the three cell version is slightly more powerful, looking to my Google Samsung Nexus S as an AC charger (i.e. it provides more than 500 mA). For the two cell version, the phone shows “charging (USB)” as the status, i.e. it can draw up to 500 mA. The two cell version has a USB-A socket (female) for generic USB cables while the three cell version comes with an integrated micro USB (male) cable. A very similar concept has been around for a while as the MintyBoost.

The nice thing is, if you carry enough pre-charged eneloop cells with you, you can swap cells as needed and have virtually unlimited power. You could even buy primary cells to top up if desperate (one set came bundled with each device), but they would end up costing you more than re-usable eneloop cells in the long term. I’ll carry some Ni-MH cells as spares on long bike trips or hikes, which could come in handy with these little cases.

UPDATE 2012-04-04: I also tried using this adapter with alkaline (primary = non-rechargable) AA cells and it goes through them quite rapidly. Alkaline AA batteries have a notoriously poor performance in high drain applications because of their high internal resistance. You’re much better off sticking with Ni-MH batteries such as Sanyo Eneloop!

It says on the pack that a set of 3 AAs will boost the charge state of a smartphone battery by 30-40%, i.e. it would take you about 3 sets (9 cells) to fully recharge an empty battery. Or put another way, if the phone lasts 5 hours on one charge doing whatever you’re doing, you will consume a set of fresh AAs every 100 minutes to keep it topped up. To provide 500 mA at 5 V (2.5 W) on the USB connector at 80% efficiency would draw 3 W from the batteries, or 700 mA at 4.5 V (3 x 1.5 V). At that kind of load, an alkaline battery might only supply a quarter of its rated capacity, which is normally measured at a much smaller load (which is OK for alarm clocks, TV remote controls, etc. but not high powered electronics like digital cameras or smart phones).

227 km a day on my Bike Friday

Posted on by
1

One month after my 155 km bike ride around Miura peninsula, a friend and I got up very early on a Sunday morning and cycled until after sunset. We went from Machida in the west of Tokyo to Mt Fuji and back. My total for the day came to 227 km (see route).

Why this ride? Earlier this month I had signed up for a 300 km brevet ride (randonnée) organised by AJ Nishitokyo for Sat/Sun, May 19/20, 2012. A randonnée is not a race, but individual riders do have to clear certain checkpoints within prescribed time limits. There’s an overall limit of 13 1/2 hours for 200 km rides and 20 hours for 300 km. For more ambitious riders there are also 400 and 600 km events. The most famous randonee is the 1200 km Paris-Brest-Paris that takes place every 4 years. I would have started with 200 km, but all events near Tokyo were already closed for signup, so I went for the next one up. Given that 300 km was almost twice the distance of my longest ride until then, I knew I needed some training to prepare.

My plan was to follow the 300 km route as much as possible to familiarize myself with it, but to cut it to a more manageable distance by taking a shortcut. The full route heads south from Machida in Tokyo to the Pacific coast in Enoshima (Kanagawa prefecture), from there west along the coast to Odawara, then up to Gotemba (Shizuoka prefecture) near Mt Fuji. It swings clockwise around the mountain into Yamanashi prefecture, then returns east to Machida via a route across the mountains. I decided to head north at Gotemba, replacing the long loop around Fuji with a much shorter section near Yamanaka-ko (Lake Yamanaka) to the east of the mountain. According to MapMyRide.com the shorter route would come to 213 km.

I would take the first morning train from central Tokyo out to Machida, ride several km from the station to the starting point and then follow the route. My friend Jose, an experienced randonneur (brevet rider) offered to join me and I gladly accepted. It would have been a lot more difficult without his company and experience.

We started at around 06:30, but I first needed to replace the batteries in my bike lights, attach my waterproof cue sheet to the handlebar and sort out some temporary GPS problems, which took more than half an hour. It’s better to encounter such problems on the training run than in the real time-limited ride…

As we rode along the Pacific coast from Enoshima to Odawara on this March 11, we couldn’t help thinking of the disaster that had struck the Tohoku region exactly one year earlier. The coast here is just as exposed. About 500 years ago, a tsunami destroyed a temple housing the Great Buddha of Kamakura (daibutsu) near Enoshima, almost a km from the coast. Only the bronze statue itself was left. We won’t know what will happen during the next Great Kanto Earthquake until it strikes.

After Odawara the road started climbing towards Gotemba. From there we climbed all the way to Kagosaka pass (1104 m above sea level), where we crossed into Yamanashi prefecture. It started snowing after Gotemba and persisted until we got to Fujiyoshida. We never really saw Mt Fuji, though we passed right in front of it, because of all the snow clouds. On the pass and around the lake everything but the road was covered in snow. I had to rest several times during the climb. I tried to eat and drink as often as possible in order not to run out of energy or get dehydrated (I was sweating a lot, even though temperatures were anywhere from 0C to 6C).

At the top of the mountain pass I knew we still had about 100 km to go, including two climbs of several 100 m each. I started to seriously doubt if I could really get back to Machida by bike or if I would have to catch a train from somewhere. But then we descended for something like 25 km from Yamanaka-ko and my energy came back as I could take it easy. Jose proposed a different route back to Machida that avoided some of the highest climbs and that’s what we did. There were still many climbs around Uenohara and Sagamiko, but I could manage them. Towards the end we rejoined the original 300 km route and got back to Machida around 20:00, which means I would have been within a 13 1/2 hour overall limit for a 200 km ride.

So what did I learn from this experience?

  • “There is no such thing as bad weather, only the wrong clothes” Jose told me and he was right. We were dressed appropriately and didn’t have a problem with drizzle or light snow. I was wearing mostly Uniqlo: long sleeved Heattech underwear, Jeans, a light Windbreaker. I also wore a folded handkerchief over my ears under the helmet, old socks with holes cut for the SPD pedal cleats over the Shimano shoes (“Belgian shoe covers”) and ski gloves when it was coldest.
  • I was more tired at the end of my 136 km day than after this 227 km. Eating and drinking often enough are key for long distance. Eat before you’re hungry, drink before you’re thirsty.
  • My butt hurt more on my previous saddle towards the end of the 156 km ride than the Brooks B17 towards the end of the 227 km. The Brooks is great!
  • I had some pain in my left shoulder joint, maybe from the cold and my Achilles tendons felt a bit sore the next day. I probably should have hydrated more before the ride and kept my shoulders warmer.
  • Navigating with the brevet cue sheet was more difficult than I had expected. I needed to edit the printout with bigger fonts and some translation from Japanese.
  • I logged the entire ride with the Strava Android app, with the phone connected to my dynamo hub USB charger via a Li-polymer buffer battery. The phone remained fully charged throughout and at the end the buffer battery charge state was 4 out of 5 LEDs, just like at the beginning. I could ride for days without running out of mobile power.
  • As I already learnt on my 136 km Miura ride (Feb 5, 2012), if you want to go far, start early in the morning and keep going as much as you can. You’ll be amazed how many km you can do in a day if you try!

Links: