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Category: cycling

Cutting Coroplast on a Table Saw

Some of the local mountain bike trails that I work on are in need of more signage, so a few months back I picked up a few sheets of Coroplast and a fellow CRAMBA-IMBA board member printed up some vinyl bicycle decals and directional arrows. This evening I finally got around to cutting the Coroplast, and after trying a few different methods I settled on using a table saw. While I only had a wood cutting blade I found that by using a fence and feeding at just the right speed I was able to make quick cuts and short work of producing 6″ x 4.5″ signs.

Now that this part is done I just have to get the decals applied distribute them as appropriate.

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Footbeds and Shims for Specialized Pro MTB Shoes

After a couple rounds of toe numbness and pain on longer rides with my new Specialized Pro MTB shoes (3+ hours, and on 4+ hour hard rides with my older shoes) I stopped by Fraser Bicycle and Fitness intending to pick up a set of higher arch support footbeds. Chris Goddard happened to be there and he checked me over, gave me a bunch of great advise about things to try, and set me up with 2x 1.5mm varus shims for each foot,  blue/moderate support footbeds, and the suggestion that I move my cleats back. While I only had my old shoes with me, these were enough to get a good feel for what I should try.

Upon arriving home I immediately put the footbeds and shims in my new shoes, moved the cleats back a bit (maybe 7mm) and hopped on the trainer to try it out. While I only got in ~10 minutes of spinning, the shoes felt like they fit much better to my feet than they had before. I’m looking forward to a longer ride, but I now feel more like my feet are solidly planted in the shoes when I begin applying force, not that they press into place as I pedal. I hope this translates into even more comfort while riding.

I’m pretty happy on all of my bikes, but these new shoes had me a bit worried. Then with a bit of foot pain during a six-hour endurance race on Saturday using my old shoes, I got a bit more concerned… This seems like a good way forward.

 

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In The Nick of Time

It’s a good thing that I decided to give the El Mariachi Ti a quick wash and a once-over before this Saturday’s race. I’d noticed some quirky shifting on the last couple of rides, and apparently this was the cause. I hadn’t planned on replacing the cable and housing this evening, but I was glad to do it now than angrily after dealing with a cable failure (and emergency single speed conversion) mid-race.

I’m really glad it didn’t let go on any of the other rides I’d done recently. I’d been noticing some issues with shifting near the top end of the cassette recently, but after recabling things those quirks seem gone and the bike is ready to ride.

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Garmin Edge 510 ANT+ Recording Stopped at Lap

Here’s something odd that happened during a long ride with my Garmin Edge 510 (firmware 2.90). While stopped in River Bends Park to climb over a tree I pressed the Lap button to mark the location so the tree could be removed, but then after that point the unit stopped recording data from either of the ANT+ sensors. Both the HR and Cadence values seemed to be stuck at whatever they were when the Lap button was pressed.

Firmware update 3.00 is out and I’ll try updating to that and see if it comes back, but as the change history simply states “Changes for manufacturing.” I wouldn’t be surprised if it happens again.

UPDATE: A bit of research has shown that it wasn’t actually when the lap button was pressed. It just happens to be right after that.

Here is the first record of the consistent/wrong 142 BPM, 24 RPM data:

<trkpt lat="42.64555980" lon="-83.04996448">
    <ele>160.6</ele>
    <time>2014-05-04T21:32:47Z</time>
    <extensions>
        <gpxdata:hr>142</gpxdata:hr>
        <gpxdata:cadence>24</gpxdata:cadence>
    </extensions>
</trkpt>

Here’s the lap marker, which shows it was earlier:

<gpxdata:lap xmlns="http://www.cluetrust.com/XML/GPXDATA/1/0">
    <index>0</index>
    <startTime>2014-05-04T21:32:09Z</startTime>
</gpxdata:lap>

Close, but definitely earlier.

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Carbon Fiber Shoes, Squishy Fork, Lubed Cassette

A rainy, quiet Saturday while Danielle is working gave me a nice opportunity to get some bike stuff done. In preparation for what I hope to be a long ride tomorrow and the Fun Promotions Stoney Creek 6 & 12 Hour Mountain Bike Endurance Race I removed the rigid fork from the El Mariachi Ti and put the original Fox and Arch EX-based wheel back on. While I like the high volume tire and rigid fork, it’s still a bit much for long rides. Thankfully the swap between forks and wheels is easy, taking only about 15 minutes. I imagine I’ll be switching this around a few times this year.

I also had to re-remedy a long-standing problem with the cassette on the El Mariachi Ti: it’s noisy. Last year I was dealing with some odd under-load ticking sounds that were worst mid-cassette and in the little chainring up front, especially when really mashing on the pedals. After a lot of experimentation I was eventually able to reproduce it and found it could be alleviated by lightly greasing the plastic spacers between the cogs. This seems to last for a few months, then it needs to be done again. This should go away once the cassette is replaced, unless the next one has a similar problem…

Finally, I got a pair of Specialized Pro MTB shoes set up and ready to use. At the end of last year I was able to pick them up on clearance at Cycletherapy, since they are the discontinued model with a strap closure, as reviewed here. These are very similar to the Comp model that I purchased in early 2011, except with more venting and a carbon fiber sole. Three years the Comp shoes were starting to get near the end of their usefulness, with holes appearing in the sides of the toes, the sole becoming more flexible than normal, and the insole seriously breaking down.

I appear to have the cleats positioned appropriately, although the pedal body on Eggbeaters seems to hit the lugs a bit. I’m not yet sure if this’ll cause a problem or is a good thing, but if it ends up not working I’ll have to shave a millimeter or two of rubber off of the lugs. Clipping in is a little stiffer than I’m accustomed to, but the solid shoe-against-pedal feeling makes for a very rigid interface. It should also move energy transfer to a larger area, cutting down on the pedal wing / shoe sole transfer that eats through Shoe Shields.

Trying the shoes out on the trainer and in the rain around the parking lot, they are definitely stiffer than the non-carbon fiber composite Comp shoes that I normally wear. They improve on the Comp shoes stiffness to the same degree that the Comp shoes (and my previous Sidis) improved on the Shimano SH-MT40 commuter shoes I’d first started out with. Fit is almost identical to the previous shoes, but with a new, stiff, less slipper-like feel. These should be good.

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A Wish Fulfilled

Ever since beginning to do mountain bike trail work and seeing the effect of a heavy storm on trails I’d wanted to see this first hand. Today I saw this, and no longer wish to. JD Harvey and I were part-way through the more remote parts of some single track at Stony Creek when a hail storm arrived. Trees fell around us, an inch or two of 1-2cm hail fell in minutes, and we had to ride rough single track near-blinded to get out. This makes for a good story, but something that I do not wish to repeat.

Today’s weather was quite excellent, and after plans with Joy and Mark there was a bit of time, so I decided to go for a first-ride-of-the-season at Stony Creek on the El Mariachi Ti with the CroMoto Grande rigid fork. Not long after beginning the 6/12 Hour route I ran into JD riding his new fatbike, so he and I began riding together. After completing one lap we decided to start another, planning to part ways at the Swamp Cutout of the Roller Coaster so he could ride home to Rochester and me to the car. Not long after starting it seemed to be getting dark quickly, but we pressed on as we normally would have been out of the trails within fifteen minutes. Just before reaching the end of the Saturday/Sunday Reroute, within the span of 30 seconds a bit of rain spat, then the wind kicked up and hail began.

Unlike my usual experiences with hail and thunderstorms — where it lasts for a few moments before changing to torrential rain — this didn’t let up.

As we made our way to the climb to the Rest Area I called for us to stop and walk up the hill to save time, something which seemed to be over in a flash. Descending from the Rest Area to the Swamp Cutout was a haze as riding instinct took over. Whenever I’d look up from the trail I’d see branches and whole trees falling in what appeared to be a fog of painful ice. I fell briefly when rounding a small drop/corner (same places as here, five years earlier) due to my wheels rolling out from under me on the ball bearing-like ice, but save for interrupting our escape this was uneventful. Once getting down to the Swamp Cutout we found that the entire forest was covered in 1-2″ deep balls of quickly melting hail.

The usual route back to the parking lot, straight from marker 29 to 2 was blocked with an immense tree, so we turned back, detoured along the single track by marker 3. Between that point and the parking lot we had to climb over at least three more trees, and make a last-minute duck to avoid the neck-height wire which had fallen across the trail. I’m very fortunate this wasn’t a live power line, as I saw it just in time to duck, glancing my helmet off of it.

Once back at the car I quickly packed my bike inside, put JD’s on the rack, then got us both in the car with the heat turned on high. The photo above (and this one) were taken near the exit of the West Branch parking, as the hail began to melt. The river-like washes through the hail were exactly that: places where water was flowing down the pavement channeled through the ice. While packing the car this was flowing over my feet, something which I paid no mind as I was just happy to be out of the woods.

While this was quite an adventure, the worst storm I’ve been caught in, a good experience, a fulfilled wish, and something for good stories, I do not want to repeat it. We both were very fortunate that we didn’t get caught up in any of the falling trees, didn’t crash in a serious way, nor encounter any other catastrophe. Simply having wet/dirty bikes, some welts (I’ve got a large one on each forearm and a sore finger), and a story to tell show just how fortunate nature was with us. This shouldn’t be pushed a second time.

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High Volume Tire for Rigid Fork

 

With Dually rims acquired I started looking around for parts to build up a high volume front wheel for the El Mariachi Ti when it is sporting its new rigid fork. Within a few days of poking around on eBay I had everything needed, some nice spokes, a Shimano XT hub (same as on the OE El Mariachi Ti wheels), and some generic (but nice) blue nipples.

On Wednesday evening I laced the wheel, and thinking everything had gone great I tensioned it on Thursday night, finding myself very happy with how it came out. Tension was very even, it was true to within 0.5mm, and dished to less than that. All was good until I started looking it over and found that I’d made a very amateurish mistake, something I haven’t done on any of the other wheels I’ve built: I put the valve stem hole in the wrong spot: photo.

If I’d made this mistake on a normal rim I could have easily shuffled the spokes one hole over and all would be good. Not so on the Dually with its offset drilling. This required me to completely unlace and rebuild the wheel to get it right. This morning I found myself awake particularly early (a combination of Danielle’s alarm and my consuming too much caffeine the day before), so I headed down to the basement and relaced the wheel before going to work.

This evening I tensioned it, fit the tire, and set it up as tubeless. During tubeless setup I was a bit concerned that I didn’t have tape wide enough to cover the spoke holes, but as this photo shows, Velocity’s 24mm Velotape is more than wide enough to cover the spoke holes. All went good, and now I’m looking forward to dry trails so I can try the wheel. I may also try it in the suspension fork, as it fits very nicely: photo.

The assembled wheel came out to be 1821g with tire and lockring, but without rotor. This is heavy, but it was expected, as the Dually is 215g heavier than the Arch EX normally used on the front of the bike. Being rotating weight this is likely to be noticeable, even with the ~400g saving of the rigid fork. Measuring 63mm wide (7mm more than the 2.25″ tire on the Arch EX) I’m expecting the extra volume to make it worthwhile. If not, it was a fun experiment and the wheel can likely be sold for what I’ve put into it. Total cost was $137.16, not counting the tire which I’ve had sitting on the shelf since late 2012. (I believe the tire was around $40 via Chainlove.)

Here’s the build specifics:

Rim:  Velocity Dually 29″ (45mm wide)

Tire: Schwalbe Racing Ralph 2.4″ (Old Tread Pattern, Tubeless Ready)

Spokes: Ritchey-branded DT Swiss Competition 2.0 (296mm)

Nipples: Generic Blue-anodized Aluminum

Hub: Shimano HB-M788 (15mm TA, Centerlock)

Rim Tape: Velocity Velotape (24mm wide)

Valve Stem: Stan’s NoTubes 35mm

Spoke Tension: ~120 kgF on the higher side.

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Velocity Dually and 2.4″ Schwalbe Racing Ralph

Velocity was at yesterday’s Detroit Bike City expo selling blemish / second rims, and I was lucky enough to pick up a pair of Dually 29″ rims for $60; an incredibly good price. While I’d previously discounted the idea of making a special / wide front rim for the rigid fork of the El Mariachi Ti, with the acquisition of this rim I think I will.

By fitting one of the new 2.4″ Schwalbe Racing Ralphs (old tread pattern) that I’ve had sitting around home I found what should be a great setup for the rigid fork. Set up tubeless it should feel especially nice. Hub-wise I think I’ll go with the same Shimano HB-M788 that I use with the original wheel build, some Sapiem or DT Swiss (depending on what I can find) spokes, and either silver brass or blue alloy (to match the rear wheel) nipples.

After fitting the tire for the test fit I let it sit for a while and measured it. For the Dually with a Racing Ralph 2.4″ it measured at 61.32mm, whereas the original Arch EX and Racing Ralph 2.25″ measures at 55.77mm. The Salsa Semi and Racing Ralph 2.4″ on the steel El Mariachi measures 58.47mm. Thus, this wider rim doesn’t seem to notably increase the width of the tire, but hopefully the additional volume will offer just the right amount of cushion to go with the rigid fork.

And hopefully I can do it on the cheap.

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172.5mm Cranks and a Third Bottle Cage

This evening I fitted the Salsa Vaya with some eBay-special 172.5mm cranks. These are the same model (Apex) as came on the bike, but 2.5mm longer, which I hope will make me more comfortable on the bike. I also fitted a third bottle cage, which I hope to use this weekend. I’ve been invited to a century ride on Hines Drive, a popular road riding location on the west side of Detroit. If all goes as I hope — which includes weather cooperating — I intend to use this bike to do a wholly self supported road century on Sunday.

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2014 Fat Bike Shreadfest at Hanson Hills

With the growing popularity in fatbiking, the Hanson Hills Recreation Area in Grayling decided to groom the ski trails for biking and host a fatbike race called the Fat Bike Shredfest (PDF flier mirror). I’d normally consider driving to Grayling (about three hours each way) a bit much just for riding my bike, but the weather was looking nice and this photo from Jorden Wakeley made the trails look tempting, so after talking it over with Danielle on Thursday I packed the car and headed out to the race.

This ended up being a super-fun time, with the race course being 4.5 miles (and about 250′ of climbing) per lap, with three laps for the Sport category. Despite starting out in last place (a usual thing for me, I don’t take off very fast) I ended up finishing second (of six — results). This even netted me a nifty aluminum trophy made by 4mile Welding, a fabricator out of Grayling. The trophy was a nice surprise, as in Sport and Beginner classes trophies were only intended for first place winners, but as no one entered the Beginner class its award was used for the second-place Sport racer: me.

The race course conditions were simply incredible: amazingly nice ski equipment-groomed trail eight or ten feet wide. It was smooth, grippy, fast, and just simply fun. Being in the rolling hills around Grayling it was also incredibly beautiful. I don’t normally get to see snow covered hills stretching off into the distance, so this was quite excellent (photo). Except for a couple occasional patches of ice (none of which caused substantial problems) it was almost like riding on a freshly graded dirt road without the gravel.

After the race I had a bit of the provided chili and beer, changed into a dry jersey and base layer, talked to people for a bit, then headed back out for another ride. I tried to cover all of the groomed trails which weren’t included in the race route, and except for one small connector I believe I succeeded. This ride was much slower paced, and just… wonderful. After the social, near-vomiting, fast-paced excitement of the race it was exactly what I needed. During the times I stopped I was amazed at just how comfortable I felt being out there in the woods, a couple of miles from my car, alone. It just felt… right.

The drive to Hanson Hills was slightly shorter than heading to Ray’s, and the money raised is to go towards establishing a full-time fatbike route at Hanson Hills next year. The race fee was a slightly-high $50, but I’m willing to pay that to help kickstart more professionally groomed fatbike routes. If next year there’s a place where I can go to get in 3+ solid hours of outdoor riding on beautiful offroad surfaces like this that’s only about three hours away, I’ll do it. I hope this happens.

I’m really glad I went.

The Strava postings of today’s rides can be found here: the race, the ride.

Here’s some photos from the race (all taken by Justin Andre): 1 · 2 · 3 · 4

Here are the photos that I took while poking around post-race: 1 · 2 · 3 · 4

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