Showing posts with label red Tsunami. Show all posts
Showing posts with label red Tsunami. Show all posts

Monday, April 04, 2016

Equipment - Off Season Experimenting

(Not a great post but I need to put down some thoughts before I post other things.)

I recently realized I may be going for my record between outside rides, with both rides being races. In 2015 my first outdoor ride was the first race in the Aetna Nutmeg Spring Series. My last three rides outside were the second Limerock (July 19th) and two Tuesday Nights (July 28th and August 4th). I haven't ridden outside since. I'm pretty sure my first outdoor ride this year will be whatever race I do in 2016, possibly in May or June. I really don't want to go a year without racing so I want to race by August 4th.

To race, though, I need to make sure my bike is okay.

Winter for me is a time to refresh the equipment, try things out that I've been thinking of trying out. I have a list sorts of things I want to get done. Although I started this post a while back I figure that with today's weather it's appropriate to get this thing up. Now or never, right?

April 4, 2016
The view from our front door.

I have four major bike refreshing/reconditioning thoughts, as follows:

1. Goal: Get black bike up and running. Need: Another stem for that bike, install stem and FSA Compact bars. Install Adamo saddle. Solder in battery in SRM spider, measure slope, make sure wire harness is okay (I think it's not). Install Ant+ speed/cadence sensor for Zwift.

2. Goal: Get red bike up to snuff. Need: rewrap bars (it's been early 2014 since I've wrapped the bars). Replace SRM wire. Get Exustar pedals back on bike. BB30 bearings. Check race wheels.

3. Goal: Experiment with 170mm cranks. Need: fiddle with red bike. I already put the cranks on it.

4. Goal: Experiment with saddle position (related to 170mm cranks). With 5 mm shorter cranks I need 5 mm more set back because my foot doesn't go forward as much. I also need more height, because my foot doesn't drop down as far.

First Goal - Black Bike

I haven't had the black bike rideable since I put the custom stem on the red bike. Those that go to the same races as me might have noticed that I haven't been bringing a spare bike to the races for a couple years now - it's because the black bike isn't rideable.

The main reason is that I haven't ordered another custom stem. I guess it's money I don't want to spend right now. I have the old bar/stem and they fit the same for the drops so that should work for now. If I want to spend a few hundred dollars on a stem I already have the bars for the bike.

I do have a second Adamo saddle that I need to install. The saddle came free courtesy of a pay-it-forward from a member of bikeforums.

The one tricky bit is the 170 mm cranks. I don't have a second set of 170 mm arms for the Cannondale SI cranks, so I may leave 175s on the black bike.

I'm pretty sure the SRM wire is shot on the black bike. Someone asked how such a wire goes bad. Unlike a cyclocomputer (historically the super thin wired cyclocomputers aren't that reliable) the wire plugs directly into the SRM. A cyclocomputer normally sits on a mount, and the wires run into the mount. To repeat, the SRM doesn't plug into a bar mount. Therefore there's some regular movement with the wire  each time you plug and unplug said wire, and I think it makes it go bad. The wired SRMs rely on the wire for cadence, speed, and power. The only wireless aspect of the wired SRM is heart rate.

Since wiring harnesses are about $80-85 each, and I have two bikes, it starts adding up really quick when you consider that for me I need a harness every year or so.

Second Goal - Red Bike

For sure I need to rewrap the bars. It's been about 2 years since I last wrapped them. Enough said.

The SRM wire on the red bike just died a couple rides ago. As mentioned above the wire eventually breaks somewhere so cadence/speed/power data doesn't show up. I have to replace that before I have any kind of power readings and therefore any true experiments with Goal Three.

I put the 170 mm arms on the red bike - the Cannondale SI is a modular crank system so the cranks are separate from the (SRM in this case) spider. I have two sets of 175 mm arms, one set of 170 mm arms. I had some Look Carbon Keo Max pedals on the 170 arms. I slip out of the Keos like nobody's business so I need to switch them out for the Exustars. They're much more reluctant to let my feet out and that's better for me.

One possible solution is to get a wireless SRM. It's possible to upgrade an SRM from wired to wireless (just ask SRM if you have one). Apparently my SRM units are not consistently upgradeable, although I'll find out more what that means. I could sell my SRMs and buy a wireless, and use no power on one bike (leave it on the trainer for Zwift?). This is sort of jumbly totally not solid anything kind of stuff right now though.

My BB30 bearings are worn. I need to replace them.

I need to double check my race wheels to make sure they're okay. I'm sure they are but I don't want to find out at a precious race day that they're not okay.

Third and Fourth Goal - 170 mm cranks and resulting position and pedaling changes

I've been riding 170s for about a month now. It's not a super long time to acclimate to a different crank length but it's enough time to notice a few things. For historical reference I rode 170s from about 1983-1988, 1995 to 2003, in 2009, and in 2011. The last two times (2009, 2011) I was looking to regain lost speed and instead lost a good 30-50 feet in the sprints. I'm furiously chugging the Kool Aid though and I'm hoping that the 170s will help me this time. Otherwise I'll go back to the 175s. With the 170s there are a few things I know about.

First, for some reason, with 170s I need to be toe in a bit. With 175s I need to be toe out. I adjusted my cleats a couple times in about 20 minutes and it's been good since. I had historical precedence so I knew I needed about yay much toe in. Took me two tries, and about 10 minutes of pedaling gingerly to confirm, and I was good to go.

Next, since 170s have 5 mm less reach and drop than the 175s, I had to push the saddle back 5 mm and raise it 5 mm. I raised it a bit more, I think 4 mm extra, because it felt like my back was a bit flatter, but my knees screamed in protest. I quickly lowered it to the baseline and my knees recovered - it took about 3 weeks but they're okay now.

I do know that too much more set back and I'm pretty far back in terms of knee-pedal relationship. I'm slightly forward right now, but not much. The Adamo saddle lets me move back without much problem, so I've been pedaling lower rpm from further back, higher rpm sitting up front. My older saddles really didn't let me do that so this is a nice change.

So that's it for now. It's been pretty busy in a time consuming way here at home so it's tough for me to write posts. I do have a few thoughts jotted down in draft form (a couple hundred to be honest, but maybe 10 or 12 in the last few months). I hope to find time to get those out there shortly. For now this is it.

Thursday, December 25, 2014

Training - Merry Christmas

Yesterday and today were family days. The Missus was home from work so the three of us (her, Junior, me) spent the day together. Yesterday Junior was a bit fussy, I was absolutely exhausted, and it ends up he was probably coming down with something; today he's been running a 100-102 degree fever pretty consistently. His normal "eat everything and then ask for seconds" became more of the "pour clementines from one bowl to another".

Nonetheless, with the weather a crazy 55+ degrees F, with sun supposed to come out, the Missus encouraged me to get out for a ride. It's really unusual for me to train outside in the winter but with March/April weather… well I had to get out.

I had a last little delay as Junior wanted to lay down and snuggle with his blankets. After holding him a bit he passed out. The Missus took over when I transferred him to his bed, shooing me away to go ride.

Because the weather was unusual I'm noting what I wore:
 - Bib knickers, "roubaix" material.
 - LS base layer
 - LS insulating base layer (not wicking)
 - LS jersey
 - wind vest
 - head thing
 - my Canari winter gloves
 - regular shoes, socks
 - Sidekick booties

Maybe a better way to do it:

Head: head sock thing
Neck: Turtleneck bit from a base layer
Torso: 3 x LS jerseys, wind vest
Legs: 1 x knickers
Feet: regular socks, regular shoes, booties
Hands: regular winter gloves

I was a bit warm since I felt warm when I started down the driveway. Realistically I could have gotten rid of one of the LS layers, maybe the insulating one, and replaced it with a SS jersey. I also could have used some "roubaix"/thermal shorts - I have a full "roubaix" long sleeve + shorts skinsuit and that would have been ideal with the LS base layer and the wind vest.

But I wore what I wore and with daylight rapidly fading I headed out.

I had been fiddling with my bike in the trainer room. My tape was a wreck, I wanted to mount a second bottle, I wanted to find a way to mount a frame pump, etc. I'm also reorganizing said bike room so I've been sorting through a lot of things.

Therefore I started full a pretty good load out, a pretty good set of supplies. A tube each for the 60 mm valve front and 80 mm valve rear, and an extender to let the 60 mm work in the rear. Spare dropout. Multi tool, two of them, including an 8 mm allen wrench and a chain tool. Spare KMC Missing Links. Some other stuff.

I also Strava'd the ride with the phone. I had my SRM going (and checked the slope thing a few times to make sure the weather didn't radically affect my numbers. Our unheated basement, at 64 degree or so, is pretty close to the 55 degrees or so outside, so the numbers weren't far off, just a few ticks.

Today I weighed in at an "off cycle" 167 lbs. I say "off cycle" when I'm at the heavier point of my weight. I was "on cycle" by the time I went for the ride, and after I weighed… I have to go weigh myself.

Ha. Exactly the same weight, down to the tenth. Haha.

Oh and when I set out I'd eaten about 1200 cal. With about 900 cal burned I'm at a net of under 300 cal for the day. Therefore I should be able to eat a bit tonight for dinner.

Compare that to the 175-179 lbs I weighed most of the summer and it's a dramatic difference, a good 10 lbs loss. I felt it immediately heading out of the complex. I have to climb a hill that's a good minute effort at 300-450 watts.

Today I peaked at 529w on that hill and did about 12 mph on the hill. It took me less than a minute and I slowed dramatically at the top just because.

Sept 27th I peaked at under 370 and struggled to go 9 mph. It took me about 1:20 to do the hill.

Aug 3rd I hit just under 390w and struggled to hit 10 mph. It took about 1:15 to do the hill.

There's another little hill I want to check but it's so short and in the middle of the loop so it's harder than checking the first few minutes of a given ride. On a great year, like 2010, I was flowing up the hill in a 53x14 at 25 mph. On tougher years it's hard for me to go 16-18 mph. I'm curious what today was like - I did it twice and both times it felt easier than any recent memory.

I hadn't been out in a while so I had some of the normal twinges from being able to ride in the saddle. They were gone by an hour into the ride but I was pretty aware of them, just in case they didn't go away.

I also learned, again, just how unaerodynamic it is to stand up. Given the choice I'll stay seated at speed, or stand while on the drops. However today, going along in a stream of traffic (I know, traffic on Christmas?), I stood while on the hoods for a short hill. It was like I hit a wall I slowed so much.

In a field, standing on the hoods is not a big deal.

Alone?

Big deal.

(Specialized did a simple wind tunnel test and it showed that for one rider - sample size was one - there was a significant savings aerodynamically in the draft by being on the drops versus being on the hoods. I thought about that today while I was on the hoods. The rider in question was a relatively tall woman based on the head tube size of the frame. I, of course, am a relatively short-legged guy so when I stand up I catch more wind proportionally speaking, so there's that.)

I did a loop and a half of my normal Quarry Road loop, trying to get my favorite right turn in (10/202 to 315) so I could do a big jump. The first lap I did an half hearted jump, deciding to make the effort only after I was clear of the turn. The effort ended up a 1000w peak, 600w for 10 second kind of effort. Definitely subpar, but fun and invigorating for a late December ride.

I figured I'd do it for real on the next loop.

Unfortunately the light turned red just before I got to the light the second time so I didn't do the second jump. I thought about it but instead decided to save it and see how the final half mile hill went. Ultimately it went about normal, based on Strava's "recent effort" comparison. I went significantly faster once this year, significantly slower twice, and within a 10 second window the other 5 times.

Yes I've only done the Quarry Road loop 9 times this year.

Nine.

It's my normal outside training ride and I used to do it 1-2-3x a week. I guess I haven't felt the need to ride outside much the past few years.

So with that I headed in. I wanted to get one last picture of the bike, in its current iteration, before the deep freeze sets in.

After the ride, Christmas Day.
Photo taken with my LG G2 phone camera in "dynamic mode"

Thoughts on the current iteration of the bike.

The bottle placement accentuates the length of the bike. I kind of like it. With the pump, the taillights, the bag, the bike has a very rear mass bias look and I like it. All the stuff is grouped around the seat tube, leaving the front end of the bike a bit bare and way out in front.

I've been working on the downtube bottle cage - I think I'm going to put in new rivnuts instead of trying to file the current cage, as I want them a good 1 cm further up the tube. Instead of trying to get it done for the ride today I just used the seat tube cage.

For the record I never touched the bottle during the ride.

I combined the two Blackburn mini pumps (one carbon bodied, one regular plastic) into one "best condition" carbon one. That's the pump peeking out from behind the seat tube.

Both blinkie lights have full strength rechargeable batteries.

The saddle bag has all my training ride stuff in it. It's short the third tube so it's a bit baggy looking. With a third tube it looks like something out of a catalog, perfectly formed.

Monday, August 04, 2014

Equipment - Bike Weight (Red Tsunami)

After reading some stuff about bike weights online I got curious about my own bike's weight. For the EVEN Hotel Fun Ride I brought a bunch of bike mechanic stuff to the hotel that I don't normally touch. This included packing the bike tool box (which has my big digital scale in it, meaning the scale for weighing stuff over 1000 grams) as well as the repair stand (which is perfect for holding the previously mentioned scale). After the ride I unloaded the stuff into the garage and it hasn't moved since. My race wheels sit there as well.

I realized that I had everything I needed to weigh my bike in its various iterations.

So I did.

My main focus was to see the delta in the weights for the wheels. I mean, okay, the ultimate weight is nice to see, but I wanted to see if there was any objective data to back up my very subjective opinions and such. I didn't put the SRM PCV (computer head) on the bike, it's about the only thing missing in terms of "always on the bike". The tail lights (I use two), saddle bag full of stuff, and pump, they go on for training rides but not for races. Bottle - since I usually ditch my bottle before the finish I figured keeping it off was fine.

My bike, after the Nutmeg State Games 2014. Stinger 7/9 wheels.
Weight = 16.2 lbs without bottle and SRM head.

The results below:

Red Tsunami bike, no pump, no bottle, no SRM head, no tail lights, no saddle bag with stuff in it. I train on the bike with the Jets right now.

Bike with Jet 6 front and Jet 9 rear wheels: 8.62 kg, 18.98 lbs.

Note that all the HED wheels, except the Stinger 7/9 combo, use the same model hubs and spokes. Even the Stinger 7/9 use very similar weight hubs. Therefore the majority of the weight differences are in the tire/tubes, rims, cassette, and a minor difference due to small variations in spoke count.

On the clinchers I'm using Maxxis ReFuse training tires, Bontrager tubes, and Velox rim strips. On the tubulars I have either Vittoria EVO tires (one of them is a Tech rain tire and the rest are regular CXs) or the Bontrager XXXLite tires. Weights for the tubular tires are virtually identical.

2010 HED Jet aero clinchers (with stock HED front skewer and trainer rear skewer)

Jet 6 front wheel, 1.71 kg / 3.77 lbs
Jet 9 rear wheel, 1.97 kg / 4.33 lbs (with 11-25 steel Campy Centaur? cassette)

2010 HED Bastogne clinchers (with stock HED front skewer and trainer rear skewer)

Bastogne front wheel, 1.16 kg / 2.55 lbs
Bastogne rear wheel, 1.62 kg / 3.57 lbs (with 11-25 steel Miche or BBB cassette)

2011-2012 HED Stinger 7/9 aero tubulars (with stock HED skewers)

Stinger 7 front wheel, 1.10 kg / 2.42 lbs
Stinger 9 rear wheel, 1.31 kg / 2.88 lbs (with 11-23 steel Miche or BBB cassette)

2010 HED Stinger 6 aero tubulars  (with stock HED skewers)

Stinger 6 front wheel, 0.95 kg / 2.09 lbs
Stinger 6 rear wheel, 1.31 kg / 2.88 lbs (with 11-21 ti/steel Campy Record cassette)

Bike weights with clinchers

With Bastognes, 7.72 kg / 17.0 lbs
With Jets, 8.62 kg / 18.98 lbs

Bike weights with tubulars

With the Stinger 7/9 setup weighs 7.35 kg or 16.19 lbs.
With the Stinger 6 wheels weighs 7.20 kg or 15.85 lbs.

Thoughts

The first thing is that I thought my bike was much heavier when set up for training. 19 pounds is not a lot for a bike, and to me the bike feels like a tank with the Jet wheels fitted. If I were to guess I'd have said my bike weighed 20-22 pounds so to have a 19 pound bike is pretty surprising. When I started racing a 19 pound bike was super light, and 20-21 pounds was about normal for a race bike. I've taken spins on 12 pound bikes in parking lots and they feel like they're made from styrofoam, they're so light, and my bike is nowhere near that.

Second I knew the Jets were heavy but to weigh about 8 pounds for the pair of wheels (with tires etc) is pretty substantial. The Jets give away about 1.5 kg or over THREE pounds to my tubulars. The front clincher wheels, which are identically set up in terms of hub/spokes/tire/tube/rimstrip, are about half a kilo apart so that's a full pound or more in just the rim. Let me repeat that in bold. The rims make for a full pound difference! The only difference between the two front wheels is the rim so that's where the weight is, directly in the rim area. This is why the wheels feel so hard to spin up, the rims weigh twice as much. They are more aero but I use so much energy getting them up to speed that I'm pretty much exploded by the time I'm able to substantially use the aero benefits.

Third, I was shocked to see that the Stinger 9 and the Stinger 6 rear wheels weigh the same. The 9 even has a heavier cassette and a marginally heavier tire. To see that it weighed the same means that basically it'll be my standard rear racing wheel. The 6 no longer has a function. It's not lighter, a tall rear wheel is always usable, and I'll have a higher top speed for a given power in a sprint. Since the Stinger 6 rim is cracked I may build it out as another 9.

The final thought is that I figured my bike was heavier in general. To be so close to the UCI minimum weight of 6.8 kg / 15 lbs surprised me. My Cannondale 2.8 was, at best, about 17 pounds with extremely light tubular wheels (280g rims, 28H, hubs similar to modern day hubs). This was on a spring-type scale (a fish scale sold through a bike distributor) so the accuracy was questionable at best, but it was a pretty light bike. The Cannondale SystemSix, with the Reynolds tubular DV46 wheels, came in at about 15.5 pounds, on the same digital scale I used to record all the above weights. The Tsunami only gives away a third of a pound compared to the very sweet System Six. It's virtually the same build kit so it's the wheels, the saddle (my carbon railed SLR is light), the fork (my current ENVE 2.0 is light), and the (probably heavier) Steelman stem and FSA Wing bar that are different.

Going Forward

I suppose I could cut some weight off by swapping cassettes between the Stinger 6 and Stinger 9 - the 11-23 ti/steel cassette is noticeably lighter than the 11-23 steel cassette. However the overall result wouldn't be significant. I wouldn't be able to tell the difference between the two, separated by 50 or whatever grams, or 0.05 kg.

I don't have any weight weenie parts per se. Thomson seatpost (the regular one), FSA Wing Compact bar (aluminum), Campy Skeleton brakes (Athena? I bought them used), Crank Bros headset, Specialized Rib Cage bottle cage. I even left two Planet Bike blinky light mounts on, and the bike had the SRM mount (but not the actual computer head).

The light stuff I have on the bike includes the ENVE 2.0 fork, the carbon railed SLR saddle, and… I think that's it. Both are long term items, not wear items. I plan on having them for a long time. I bought some lighter weight tubes (60g vs 90g) but, again, realistically I'm not going to notice that as much as if I move from one wheel set to another. Plus they're thinner and slightly less durable so I'll stick with training on regular tubes for now.

Steelman Bikes stem, it's not light. 257.4 grams unpainted, so 0.57 pounds by itself. I think a typical stem is in the 100-120g range. That's a substantial difference relatively speaking, to double the weight of a part. However fit is absolutely critical so I can't nitpick the weight of the stem.

Tsunami frame, alone, is about 1300g with paint, binder clamp, and barrel adjusters. Unpainted it was 1210g. My frame and fork should weight in the 1650g range (with a 350-ish gram fork). The Cannondale was supposed to be 1150g for the 56 cm so a bit less for the 52 cm I rode. Again fit is first so a little bit of weight is a normal sacrifice for a custom fit, sub-$800 frame.

I do have a light crankset, the Cannondale SI SRM, which is about 675g total, with bottom bracket. I think I've weighed it but I don't know if I ever put the pictures up, and looking through about 20k pictures doesn't appeal to me right now. A typical crankset (Campy Record aluminum with Record BB) will weight 900g or more.

However, for basically no carbon except the rims and the saddle rails, the bike isn't heavy at all.

Realistically it would be easy to drop a little weight in the training wheels, but that's not my goal. In fact I want to keep the bike heavy for training.

For racing I might be able to shed a few grams here and there. However, with my own body weight something like 9000 g / 20 pounds higher than in 2010, spending money to save 40 or 50 grams seems ludicrous. Therefore I'm not going to do anything to the bike.