31 December 2021

2021 "Festive 500"

The Pelso prays for world peace at the shrine just outside Haneda airport.

After the 300/400/300km brevets I joined in late October through mid-November, I have taken a short vacation from longer rides, with only a few ~50km coffee rides with the Tokyo Cranks from November 20 and December 23. I will rejoin Audax events from next March, but hope to focus on swimming in January and February. 
So I was not sure if I would be able to get in enough short rides to clear the Festive 500 (500kms during Dec 24 to Dec 31). I did so, finishing with a short spin this morning, the 31st. I ended up doing more than 60% of the distance on the Pelso recumbent.
The first ride was a flat trip to Soka City, Saitama to pick up a bicycle component and meet Sashikata-san, the only recumbent dealer in Kanto (who is very much on a part-time basis, his main business involving supply of classroom desks to schools).  The next ride of significance was a trip to and from Mitaka for an appointment -- I headed down to Haneda, then up the Tamagawa, and on the way back went to Mitaka. Then on the 29th I took a short ride on the Parlee with Jerome and Peter, also the Tamagawa with "hospital hill" and "I-ro-ha-zaka". The last long ride, the longest of the week at 107kms, was again to Mitaka via Haneda and the Tamagawa ... with a return also via the extended, indirect route.
As always, when I ride the Pelso, I hear plenty of exclamations as I pass by groups of people. "Sugoi. Are nani?" (Wow. What is THAT?)  
The Tamagawa looked as if it is ready for the New Year. I often feel like riding along the river is just the boring, same old route that one needs to get through in order to enjoy the "good stuff" once into the mountains further out of town. But on December 30, on the Pelso, the Tamagawa, and the sky with its changing colors as the day went on then faded away, was enough of a reward in and of itself. 
The water skiier I saw near Kawasaki was the icing on the cake.














20 December 2021

Outmoded and Outdated -- Audax Rules Prohibiting Flashing Rear Lights


Many Audax clubs, including those in Japan, prohibit use of flashing lights on bicycles. Indeed, German and Netherlands law prohibit flashers. Some other places also prohibit them (or at least prohibit a bright, flashing, front light that will bother drivers). Audax clubs also require that lights be affixed to the bicycle frame (except, perhaps, one on the rear of the helmet).

This article on the Bikeradar website summarizes current research on whether flashing or solid lights are safer, and suggests that the Audax rules may be out of date.

https://www.bikeradar.com/advice/buyers-guides/flashing-bike-lights/

One key piece of research emphasizes the importance of lights, and reflectives, on moving parts of the body -- the legs and arms, and less so the head.

"The study found that when steady lights were mounted to the cyclist's pedaling heels, participants [identified the cyclist] from a mean distance that was 1.7 times greater than when a flashing light was mounted to the seatpost. This figure increased to 5.5 times when compared to a steady light mounted to the seatpost."

Some Audax groups (in the US) do require reflective ankle bands. Those in Japan do not ... but should. 

And the Japan clubs also should allow flashing rear lights, and encourage use of lights on the heels or ankles.

16 December 2021

Electric scooters and e bikes in Japan are “gentsuki”


I was wondering how long it would take for the police to jump into action … but it seems they are finally moving against illegal e-scooters. These transport devices are treated like “gentsuki” — small motor (<50cc) mopeds — under Japanese regulations. They cannot be used on the streets without a driver’s license and the devices should have a number plate (and mandatory insurance). Mainichi Shimbun has an article today on the topic … one of numerous I have seen in the past month so a typical “get the word out” media campaign by the traffic cops.

https://mainichi.jp/articles/20211214/k00/00m/040/331000c

First step … warning riders and trying to shut down sales activity. Next step … you’ve been warned.  Eventually … modify regulations to accommodate something new that is, potentially, a better way to get around town for some people. 

The same treatment should apply to e bikes that have a powerful electric motor. People … usually delivery gig workers … zoom past me all the time on e bikes with fat tires … snow or sand tire fat … and you know their motor is electric, not the hipster with the “Wolt” or “Uber Eats” cube shaped backpack on. These guys sometimes come too close for comfort too fast.  Of course, a regulation “mama chari” electric bike that has limited power and cuts out gradually between 15 and 25kph is exempt from being considered a “gentsuki”. 


14 December 2021

What is the Fine for Causing a Massive Crash in the Tour de France?



The "Allez Opi-Omi!" spectator who caused a nasty pile-up crash on the first day of last summer's Tour de France has been fined 1200 Euros for her conduct. 


Tony Martin, first man down in the peleton, retired from pro cycling after this, naming "too many crashes" as one of his prime reasons. I hope that her German grandma and grandpa saw the sign.

10 December 2021

Wheel No. 00028 -- First new SP dynamo hub in years!

This is around a 955g wheel, including the dynamo hub. About as light weight as imaginable for a 32-spoke, wide-rimmed, very sturdy wheel with a dynamo. 

As part of preparing the Ti Travel Bike, Voyage Voyage, for its second decade, I thought I also should replace my front wheel, built in December of 2014. The wheel and its Shutter Precision SV-9 dynamo hub has gone at least 20,000 kilometers over the past 7 years. The hub is a closed system -- can only be opened and maintained at the factory, in theory at least. So while it still "rolls good",  the bearings must have worn a bit by now. I recently noticed a very slight degree of "play" in it, so I think it may be nearing time to replace. And the wheel's H Plus Son Archetype rim is showing definite wear on the brake track -- what started as a straight brake track is now noticeably sunken/concave on both sides. I think the rim could last another year or two, but if I am going to replace the hub I might as well do the rim at the same time. If I build a new wheel, it should be what I use with the Ti Travel bike for PBP 2023 and beyond.




The new dynamo hub arrived it seemed almost overnight, actually second day I think after it shipped -- Taiwan is incredibly close to Japan and so it is practically like a domestic shipment! The SV-9 is designed to meet the German regulator's standards of output for a 20 or 24 inch wheel. On a 700c road wheel (28 inch) this hub requires a slightly higher speed than the regulatory standard to achieve the necessary output. This also is true for the SV-8/SD-8. The PV-8/PD-8 and PD-7/PL-7 are the models that clear the German regulator's output requirements. But that regulatory standard is for commuters on heavy bikes going slowly in urban environments. And it is for older lighting that drains more power than the newest, most efficient LED lights and reflector systems. The regulatory requirement is just not an issue for someone riding a road bike, even a plodding randonneur in the middle of the night.  And the SV-9 hub is just over 300 grams -- the lightest dynamo hub that works. The SV-9 (and SV-8, to some extent) have lower drag than other options. (These models are not included in any of the head-to-head tests by SON-friendly reviewers like Jan Heine at Bicycle Quarterly, or this Australian touring cyclist. Instead, they test the PV-8/PD-8. In my experience, anyone doing Audax or light, bikepacking touring will be very happy with the SV-8 or SV-9. They easily power a 50, 70 or 100 Lux LED headlight plus a rear light. And the drag is not noticeable. 


The H Plus Son Archetype is always an easy wheel to build, and today was no exception. And the H Plus Son Archetype remains, in my view, one of the best looking aluminum clincher rims out there. Just some good wheel-building therapy!


05 December 2021

Wheel No. 00027

Wheel No. 00027

After a flurry of wheel building during 2012-2015, I have rebuilt a number of wheels in recent years ... but until today it has been quite awhile since I built up any entirely new ones. 

In 2020/21, I rebuilt each of my Imezi wheels after damaging the rims (my fault). 

In Spring 2019, after the rim died in Tasmania but before Paris-Brest-Paris and the other cycling planned for a European trip, I rebuilt Wheel No. 00024 with a new rim, but reused the lovely Dura Ace 9000 hub and the still okay Sapim CX-Ray spokes.* 

My plan is to convert the Ti Travel bike to SRAM Force AXS eTap 12-speed groupset -- for the next decade of use. That requires a rear wheel with a SRAM XDR hub. I got an XDR conversion freehub adapter for my Imezi 167 carbon chincher wheels, but also wanted a new, aluminum clincher rim wheel for everyday use, travel, and Audax.

XDR freehub, DT Swiss 240 classic (J bend) rim brake hub

I could find a DT Swiss 240 "classic" 28-hole hub and DT Swiss RR411 asymmetric rear rim, plus Sapim CX-Ray black spokes, on a German mail order retailer's website. The package arrived within two weeks and I built up the wheel.

The RR411 looks really nicely built. so does the DT Swiss 240 hub. The SRAM XDR cassette attaches really nicely to the freehub -- very secure and easy installation using the same tool as for a Shimano or legacy SRAM freehub. 

I have not used an asymmetric rear rim before, but the idea is that the right and left sides can have more even spoke tension than a typical rear wheel build, where nearly all the tension is on the drive side. In the end, with the wheel tensioned and trued, the right side spokes are around 125kgf and left side around 75-80kgf. In a typical aluminum clincher rear wheel the right would be the same, 120-130kgf, and the left would be I think no more than 50kgf. My hope is that this design, plus the super-strong Sapim CX-Ray spokes and the long, brass spoke nipples that I used, will make this a very strong wheel despite the 28 (vs my usual 32) spokes.

The RR411 is 22mm wide outside, 18mm wide inside, not so different from the H Plus Son Archetype (23mm/17.5mm), but not as wide as many of the rims being made in the past few years for use with 28mm, 30mm or wider tires. (Velocity Aileron rims and Gokiso GD2 rims are 25mm wide on the exterior, the Imezi rims are 26mm). The RR411 width is just fine, as the Ti Travel bike's chain stays do not allow a tire wider than 26-27mm in any event. In recent years, I use a 28mm tire on the front of the bike, for extra comfort, and a 25/26mm rear. I also use a 27.2mm seat post with an adapter for a bit of added flex and comfort, as the bike feels a bit stiff for ultra-endurance with a 30.6 seat post. 

I have DT Swiss 350 hubs on the Imezi wheels, but this is my first experience with the DT Swiss 240 -- the higher-end model, lighter weight for road racing, but I expect very similar in terms of maintenance and durability. The freehub is very quiet.

The fully built wheel, without cassette/tape/skewers, is 838 grams. That is excellent for an aluminum clincher rear wheel. For comparison, Wheel No. 00024 was 913 grams when new. The DT Swiss 240 rear hub is 212 grams (vs 247 for the Dura Ace 9000). There are 28 (vs 32) spokes. And the rim is 435g (vs 485g for the H Plus Son Archetype). I used slightly longer (and heavier, brass) spoke nipples as compared to the aluminum nipples that used to come paired with Sapim CX-Ray spokes. 


And the DT Swiss RR411 rim came with washer-like supports (PHR washers) that  fit around the inside edge of the spoke hole, where the spoke nipple presses into the rim, to compensate for a rim that does not have any grommets around the spoke holes. These supports are wider than the base/head of the spoke nipple and are shaped to fit snuggly into the inside of the rim bed and give additional support around the edge of the spoke hole. 

I used the black brass Sapim Polyax 16mm spoke nipples I ordered with the spokes, rather than the set of DT Swiss silver alloy "Squorx" nipples that came with the rim. I now see some instructions on other retailers' sites to the that the wheels "must be built" with not only the PHR washers but the Squorx spoke nipples. Hmmm. 

Did I mention that, with the right rim tape, the RR411 rims are "tubeless ready"?



The rim, hub, and spokes all made for an easy build. I expect this to be an excellent wheel with which to launch the second decade of the Ti Travel bike! 

10-36 12-speed SRAM Force 1270 Etap AXS hub (with QR skewer inserted). 
With 46-33 crankset and 10-36 cassette, the AXS drivetrain will offer a barely bigger high gear than my current 50-11 compact setup, and a much lower low gear (33-36 vs 34-32)
for spinning up the steepest hills, exhausted and with some gear on the bike.

*Wheel No 00024 now could use another rebuild, after thousands more kilometers. The rim probably could last another few years, though it is showing some wear along the brake tracks. But a number of the bladed spokes have bound up in the spoke nipple or are badly twisted from 6+ years of adjustments, and are essentially stuck. At this point, instead of mixing 7-year old and new spokes, I think it is best to again re-use the Dura Ace hub, with a new replacement H Plus Son rim and a full new set of spokes. Another winter project!

02 December 2021

Is a Bicycle a Political Symbol ... or Just a Bike?

 

I was amused to see this headline
The conservatives apparently thought that this was just a way to make a political point, to show "environmental cred" ... instead of, say, the only place to store a bicycle out of the way, dry and safe, while inside.

Well, when I do a Zoom meeting at home from my Zoom cave ... my background looks quite similar to his. 


The bike, the bookcase, the photo, everything in view pre-dates the pandemic and the beginning of the Zoom era (though I did get the Gokiso wheels out of storage recently -- when my previous wheel wore out).  This is the only way to store multiple bikes on the first floor of my house (the others are on the floor out of view). It is possible to blur everything so that there is only the outline of a bicycle/wheel visible -- I usually do so. But the Canadian parliament probably has a rule against that too.

26 November 2021

SRAM Revisited


If you look back into the Positivo Espresso archives, or search some online forums, you can find some complaints that many of the first generation of SRAM eTap (wireless electronic) rear derailleurs failed, gradually or suddenly, within the first three to six months. Mine did also, in the middle of a ride. It was of questionable enough reliability that there was no way I was taking eTap for the trip to Europe that included 2019 PBP.  I also, historically, have grumbled when, say, a SRAM crank-arm sheared off above the pedal, leaving my foot dangling in mid air, not to mention the many times that the rubber brifter covers have torn and worn on my SRAM brifters.

Overall, I had the impression that SRAM was trying to shave weight off of components in places where, perhaps, they should have focused on reliability. And that they rushed eTap to the market faster than they should have.

Of course, a search through the archives and the "equipment we broke" page will show plenty of Shimano brifters, Shimano Ultegra cranksets, etc., that were unrepairable after catastrophic failure. But overall, historically, Shimano seemed a bit more reliable and conservative than SRAM.

Then there was the very fast, sudden, jump from 1st generation eTap to the AXS eTap, with almost no backward/forward compatibility! Ouch - felt like a punishment for jumping in with both feet and getting the early product.

But I have now been using my warranty replacement SRAM eTap rear derailleur without any problems for the past 2+ years.  At this point I would trust it enough to take it on a 1200km brevet outside Japan. It continues to have some great advantages, other than reliable, push-the-button shifting. The main one is ... no shift cables, mechanical or electrical. This is a compelling advantage for travel, when one needs to take apart and put together a bicycle several times to avoid damage and fit it as luggage. 

And these days I find myself using an old SRAM Rival/Red mechanical groupset mix, with long cage (Wi Fli) rear derailleur and FSA/Ossymetric cranks, on the travel bike. Also, the Pelso came with a 1x SRAM GX groupset with hydraulic disk brakes (also 11 spd ... not the newer "Eagle" 12 spd version). These SRAM products work just fine, though they are not as effortless to use as eTap.

SRAM seems to be the "innovator" now. They led in bringing 1X systems from the MTB to the road/gravel bike market, including rear derailleurs with a clutch and a very wide gear range.

They led with wireless electronic shifting. Shimano is only now bringing out a "half" wireless product that, while it does not have wires running through the top nor down tubes, and so would work for a travel bicycle with couplers, still has plenty of cables within the front and rear parts of the bike, and a seat post battery that cannot just be swapped in and out in seconds as the SRAM batteries can.

And the AXS eTap seems reasonably well-regarded in the market. It has been out for several years, and has "trickled down" from Red, to Force, to Rival versions. The Rival one is affordable, the Force one at least not shock-the-conscience outrageously expensive.  You can get a power meter in your crankset for a few hundred dollars extra -- a fraction of what the first Quarks or old SRMs cost a decade ago. And they have both 1X and 2X systems.

--I have read that SRAM is doing a firmware upgrade so that an older 11 speed eTap rear derailleur could function with a new AXS shifter, as they stop being able to supply the older shifters for replacement. Backward compatibility instead of forced obscelescence. 

--The batteries and chargers also are compatible between first generation eTap and AXS. The 12 speed SRAM cassette free hub is different than the 11 speed SRAM/Shimano one, but at least it seems that many hub/wheel manufacturers (e.g. DT Swiss, Chris King) make adapters to allow continued use of old wheels/hubs with the new 12 speed cassettes.

--Rim brake versions are available. A hydraulic disk defeats the simplicity for travel of no shift cables/wires, simple brake cables with splitters, unless you use one of the mechanical/hydraulic disc brakes such as TRP or the Ultimo Yokozuna. If I were to transfer this groupset to a disc brake bike in the future, I could get some of those and continue to use everything else (and continue to use cable splitters for the brake cables to travel.

The main disadvantages for SRAM are, I think:

(1) the Shimano front derailleur performance continues to be noticeably smoother/faster than SRAM, and 

(2) SRAM is very hard to find and expensive in Japan. 

I bought my eTap from a German online retailer at the end of 2018. If I try today, the same site tells me the product is "not available for shipment to Japan".  That said, it is usually possible to find someplace that will ship to Japan what I want and need, if I cannot find it locally. I just purchased a Force AXS upgrade (with Rival AXS crankset, including power meter) to install on my travel bike this winter. I was glad that they offer a rim brake version. 

And the gearing will be 46-33 crankset, 10-36 rear cassette, compared to my current 50-34 and 11-32.  So my top gear will be 4.6x instead of 4.54x, and the bottom will be 0.916 instead instead of 1.06. Total range is 502% instead of 428%. Also, I could find a merchant willing to ship to Japan. The bike's titanium frame is in its 10th year. I hope that with the new groupset, I will have at least another 10 years of relatively trouble-free travel around the globe with my Ti Travel bike, Voyage Voyage.

Finally, even if SRAM is made in Asia (mostly Taiwan), it is an American company, with a pretty cool looking HQ in Chicago. As an American overseas, it is nice, once in awhile, to fly the stars and stripes.


22 November 2021

Some Quality Time Alone with Sakamoto Ryoma

Sakamoto Ryoma contemplates the world outside Japan, looking out from Shimoda Harbor.
(Always impressed with the iphone 11Pro's night vision-like camera. This scene was near pitch dark.)

This weekend I joined an Audax Kanagawa 300km brevet, from Kamakura/Zushi to Minami Izu and back. This route, down Route 135 along the eastern coast of Izu, is known for very heavy traffic at least as far south as Atami or even Ito. There are cyclists on it, but it took me years before I dared it, and it is not fun to ride with a constant line of cars whizzing by, sometimes only inches away. 

The solution -- ride it at night while the drivers are asleep in their beds! An 8PM start meant that around 12 hours (out of a 16 hour ride) were in low (or no) traffic.  The last 45 minutes of the ride was next to a line of standing cars along the coast road from east of Enoshima all the way to Zushi -- so if you count riding through what is essentially a parking lot also as "low traffic", at least "low danger from traffic", that would make it nearly 13 out of 16 hours.

Pre-ride briefing, at the West entrance to Kamakura Station

Organizers Maya Ide and Honda-san chat with riders

It was a beautiful night, the temperature never below 10 degrees C (50 fahrenheit) along our route, a full moon visible until nearly morning, only partially obstructed by clouds from time to time. Sunday we finished just as a light rain shower started. 

Typical audax scene - at the turn around in Minami Izu. Warm enough to eat outside!
(Family Mart just across from closed michi-no-eki)

First photo of the night - heading south, at Usami just before Ito

The ride included nearly 3000 meters of elevation gain, all of it in the "middle 220kms" along Izu, none in the first or last 40km. That would be too much for the recumbent, not to mention the stress it would have added riding the Pelso through the "parking lot" of traffic the last 20kms, so I was on Sky Blue Parlee. My usual brevet rear wheel is in need of a rebuild, so I got out the Gokiso rear wheel ... the bike felt fast, maneuverable, and stable. It advanced with minimal effort. And with this setup and at my current rather heavy body weight, I descended REALLY FAST. At one point I was doing an "accordion" ride with another randonneur, Ohno-san, who had done Okayama 1200 with us in April. He would distance me on the climb, and I would catch or pass him on the descent. Repeat. Repeat again. 

This ride offered a chance to at least say hello to numerous friends.  The organizers, Maya Ide and K. Honda, are longtime Kanagawa leaders, thanks to whom I have enjoyed countless brevets. Indeed, my first brevet ever was a Kanagawa 400k back in 2009. Ryu-san, the alongtime Saitama and AJ leader, was there. He has lost weight and grumbled about the headwinds, but looks as strong as ever. Joe Wein rode this one on his Elephant National Forest Explorer. Many others. Even a third "gaijin" rider -- a strong younger first time randonneur named Benedikt, from Iceland.

One highlight was the "foot bath" in the park next to Shimoda harbor. Ohno-san had stopped there on the outbound leg, and told me the location when he caught up again at the turnaround control point. Then there was also a big "FOOT BATH ->" sign in English at the park entrance, to help distinguish the gazebo with the hot spring water from others that had only benches. Looking out at the Ryoma statute, I could lie on my back on the ground, feet in the 15~20cm of water, it removed all the stress and strain of the ride in only a few minutes, and was just enough to warm my entire body on a night like this. I could have fallen asleep and stayed there until morning. But, this is a brevet. There is not a moment to waste! At least not any more than necessary. So the total stop was only 15-20 minutes, the time lying down even less. And it was back on the road!


Lovely, free, 24-hour public facility -- the hot spring is barely noticeable, inside the trench.

Anyway, it was a lovely ride, except that patch of 3~4 hours of heavy traffic between Ito and Enoshima on the return. Riding at night, not to hot nor cold, a confident bicycle, smooth roads, good lighting, the calming sound of waves breaking against rocks, their white foam visible when all else is dark. 

Moon over the Kawazugawa

First light

More first light

On local route 109 between Izu Kogen and Ito - lovely road




Still south of Atami, but back on the main road


Surfers at Yugawara


Since Jerome told me that my 2015 Japan Audax vest is not as visible as it should be, I have been using my Proviz runner's vest for these events. Very light weight and breathable, and very bright. A real winner.
Reflective vest in normal light

Reflective vest with camera flash

This was my last scheduled audax event of the year. I really look forward to more "traditional" (not just "remote") brevets in 2022, riding with, or not far from, friends.

Which Bike is Faster, the Parlee or the Pelso?

On Strava, this ride on the Parlee showed an average moving speed of 22.3kph over 302 kms.
Last weekend on the Pelso, my average speed was 21.7kph according to Strava. And that was a much flatter course. So is the Pelso slower, even on a flat course? Not necessarily.

A number of adjustments are needed.
--First, recall that my GPS was turned off for probably the fastest 10km after Oume -- the descent to Hanno. That section could have boosted the average speed.
--The event on the Parlee was 100km shorter, and I rode another 25kms total to/from the start of the other event, on the Pelso. 

My speed gradually drops over most rides, so the comparison is not at all even. On the Kanagawa/Parlee ride, I was going an average of 28.7kph to the first checkpoint, nearly 50kms in. And the first 150km, including almost 1500m of climbing, took only 6 hr 49 minutes. If I had just turned around and ridden back (without any rest, foot bath, nor drop in speed) I would have finished in 13 hrs 38 minutes, rather than, the actual 16 hrs 57 minutes. Add in another 100kms at the end with a slower, tired rider, and my average speed would likely have slipped significantly.

Also, I don't think the Pelso is fully optimized yet. Nor is the Pelso rider. I am going to try a shorter crankset (165mm instead of 170mm) as many prefer on a recumbent, and try a 44t crank instead of 42t, to get a wee bit more speed on the flats and descents. Finally, I want to try 700x30 or 700x32 tire, instead of the current 700x25 tires, to see if a bit more fork "trail" makes the bike more stable and comfortable when going at low speed.

20 November 2021

Cycling Routes in the USA

The Washington Post has a nice article about new network of recommended bike trails and routes in the US that are making long-distance travel by bicycle safer and more pleasant. This is not new infrastructure. In many cases the routes do not even have signage. But the designations help cyclists to know which roads they will enjoy -- the lower traffic, higher reward routes -- and eventually they will help bring cyclists into the consciousness of motorists, increasing safety.

“The national corridor plan is to have 50,000 miles of routes across the United States that will be suitable for long-distance bike travel in a mix of environments,” said Jennifer Hamelman, USBRS program manager with the Adventure Cycling Association, a partner in the project. “It will be like the interstate highway system,” but for human-powered two-wheelers.