But I Don’t Care

Wednesday, January 29, 2014

A depressing chart of my fitness

I could have kissed Matt (my physical therapist) when he told me I was clear to ride the trainer for five minutes last week. I held back though, on account of being married. And being a man. Five minutes hardly seems worth the time to set up the trainer, put on cycling shorts and socks and shoes, and embarrassingly realize the helmet I spent three minutes looking for was unnecessary – but I didn’t care, I was going to be on my bike!

Spoiler alert. Though I haven’t posted it yet, the bike build is complete, as evidenced by this post about a trainer ride. I hope to publish the build posts soon; it’s just taking longer than I thought it would to organize photos and descriptions.

The high heart rate value aligned with my labored breathing. But the power output did not. I was convinced something was wrong. I must have miss-calibrated, or maybe the power meter came from a bad batch, or the Garmin is incorrectly reporting the value, or...

Or maybe I lost a little fitness. And by “a little” I mean a lot.

Before I was finished with my internal debate on whether my power meter was giving me accurate numbers, the five minutes were up. I frowned and dismounted, then considered deleting the ride. I kept it though -- and even uploaded it to Strava for all to point and laugh at my measly 47 kJ of work. Half an apple later and I had sufficiently replenished the spent calories. Not much of a ride.

But I didn’t care, I was happy. Because it may be small, but it’s a start.

Five minutes after five months

Yesterday after work I was clear to add five more minutes on the trainer. For kicks, I decided to do 30 seconds of near-maximum effort to get my heart rate up. I wasn’t paying attention to power (which was good because again my output was pretty pathetic), but it is somewhat interesting to compare the power with a pre-accident effort.

On August 1 (three weeks before the accident) I was riding up Lemmon and interested in achieving a personal best one-minute power (i.e. I did a Kilo Interval ). For the first 30 seconds of the one minute interval, my average power was 633 w at an average heart rate of 180 bpm. It isn’t quite a fair comparison since it was a portion of a longer interval, but I don’t want to completely destroy my ego.

30 seconds three weeks before the accident

* A Kilo Interval is one minute of maximum effort. Named “kilo” because at maximum effort for one minute you hope to travel around a kilometer (which would mean averaging a little over 37 mph). The interval can simulate the final kilometer of a race, where one might want to launch an attack for the win. Kilo Intervals hurt. Bad. I highly recommend them.

So, on the trainer for the second time after five months of inactivity, my average power for 30 seconds was 327 w at an average heart rate of 174 bpm. About a 48% decrease. Half the man I used to be. Cue STP’s “Creep

 Take time… with a wounded back… cause it likes to heal

30 seconds five months after the accident

I’ll be honest, it was a little discouraging at first. I knew I’d see low numbers but I didn’t expect them to be that low. My fitness has tanked and it will be a while before I am back to where I was.

But I don’t care, I rode my bike!

New Bike Build: Part 3

Sunday, December 15, 2013

Bike Build Part 1 Bike Build Part 2 Bike Build Part 3 Bike Build Part 4

From the cover of The Bicycle Wheel, by Jobst Brandt

If you're wondering why it took me so long to blog about my wheelset purchase, simply Google "bicycle wheelset" and see how quickly you can make a decision. With so many options when it comes to selecting wheels, it can be a bit overwhelming. Wheelsets are touted as one of the main areas where performance increases can be greatly gained -- but it can come at a significant price. Armed with a modest budget and sufficient time to delve into the many wheelsets out there, I feel I was able to find one with an excellent balance of price and performance.

There are many options to think about. Carbon or aluminum; deep or shallow; wide or narrow; sharp or blunt; clincher or tubular; carbon or aluminum brake track; tubed or tubeless. They can be best-suited for flat time trials, mountainous road races, sprinting in criteriums, long steep hill climbs, or just everyday training. And of course, aesthetics does come in to play -- no matter how much I pretend I don't care.

Aero vs. Light. One "problem" with the Noah frameset is that it really needs to have deep wheels to look right. To me, the thick aero frame just looks silly with small rims. I'm building up an aero frame, so it makes sense to have aero wheels. Besides, I have a spare set of light rims that I can use for climbing if I really want to, so for this wheelset I'm going to seek deeper rims.

Depth. An issue with a too-deep front wheel is control in crosswinds. Having a deep rear wheel, however, helps maintain control. My ideal setup would be something like a depth of 40-60mm in front and 60-90mm in the rear. Enve has the 6.7 wheelset (60 in front and 70 in rear) and many racers seem to like the Zipp 404/808 combo (58 in front and 82 in rear). Both those wheelsets are out of my price range but I chose to use them as a starting point in terms of rim depths.

Clincher vs. Tubular. The benefits of going with tubular wheels are they are lighter, corner better, are harder to pinch-flat, and safer to ride when flat. The problems with tubulars are they cost more, require some skill to glue on, have potential issues with brake heat, and are a not easy to deal with when you get a flat. Simply put, clinchers are for training and tubulars are for racing. I don't want to buy two wheelsets, so I need to decide on one type. Since the majority of rides I do are training rides, I decided to stick with clinchers.

Rim Width and Shape. The latest trend with wheels is wider rims and a more-rounded (blunt) edges. The main reasoning is to more closely match the width of the tires, creating a straight profile and therefore eliminating extra drag. The wider rims also allow lower tire pressure giving the rider a smoother ride, lower rolling resistance, and better cornering performance. It seems to make sense and wind tunnel testing backs up the claims. The blunt edge provides a more aerodynamic surface on the trailing end of the wheel, as well as helping deal with crosswinds. I decided to go with the newer "technology" of wider rims with blunt edges.

Rim profiles of some of the wheels

Braking. The downsides of going with carbon fiber brake tracks are lower brake power and reduced modulation capability. Those problems are made worse in wet conditions. Additionally, they require special brake pads that are sometimes even manufacturer-specific. I suppose you could also say that the sound of carbon fiber braking is a downside though it is not a performance issue. The downside of aluminum brake tracks is that they are heavier. To me, the choice of carbon fiber or aluminum brake tracks was not a priority, though my preference would be aluminum.

Other factors. As I mentioned in Part 1 of this build, I enjoy sprinting and frame stiffness was a factor. Wheel stiffness is also important to me, so finding a wheelset on the stiffer side is desirable. Aesthetics does matter somewhat as silly as it may seem. Personally, I don't like the look of certain wheel logos (e.g. Easton and Zipp), but I do like the look of others (e.g. Enve and HED). And of course, removing the logos is also an option.

There are tons of wheelset manufacturers out there. I mean tons. I looked at Bontrager, Boyd, Easton, Enve, FFWD, Flo, Fulcrum, HED, Mavic, November, Oval Concepts, Psimet, Real Design, Reynolds, Rolf Prima, Soul, Williams, and Zipp. Even with all those I know there are many others missing, but I still need to keep these posts under 10 pages. Here is a quick comparison on some of the options I looked at (sorted by price):

Depth Rim Approx.
Front Rear Width Brake Weight Approx.
Wheelset (mm) (mm) (mm) Track (g) Price
Enve 6.7 60 70 24.0 Carbon 1,590 $ 3,000
Zipp 404/808 58 82 24.0 Carbon 1,700 $ 3,000
Easton EC90 Aero 55 55 55 21.0 Carbon 1,580 $ 2,800
Oval Concepts 945 45 45 19.0 Aluminum 1,760 $ 2,300
Rolf Prima 58RSC 58 58 19.0 Aluminum 1,920 $ 2,300
Reynolds Assault/Strike 41 62 25.0 Carbon 1,530 $ 1,800
FFWD F6R-C 58 58 19.6 Aluminum 1,840 $ 1,700
HED Jet5/Jet7 54 75 23.0 Aluminum 1,800 $ 1,600
Psimet 50/58 50 58 23.0 Carbon 1,540 $ 1,500
Soul C5.0 49 49 23.0 Carbon 1,540 $ 1,500
Boyd 60/60 60 60 23.5 Carbon 1,660 $ 1,500
Mavic Cosmic Carbone SLS 52 52 19.0 Aluminum 1,700 $ 1,300
Fulcrum Red Wind 50 50 20.8 Aluminum 1,760 $ 1,300
November Rail 52 52 52 25.0 Carbon 1,530 $ 1,300
Bontrager Aura 5 TLR 50 50 23.0 Aluminum 1,720 $ 1,200
Williams System 58 58 58 19.0 Carbon 1,690 $ 1,100
Real Design Sixty 60 60 19.0 Aluminum 1,800 $ 1,000
Flo 60/60 60 60 24.4 Aluminum 1,940 $ 900

To shorten the list, I removed all the wheelsets over $2,000 as well as all those with rim widths less than 23.0mm. Here is the shortened list (sorted by weight):

Depth Rim Approx.
Front Rear Width Brake Weight Approx.
Wheelset (mm) (mm) (mm) Track (g) Price
Reynolds Assault/Strike 41 62 25.0 Carbon 1,530 $ 1,800
November Rail 52 52 52 25.0 Carbon 1,530 $ 1,300
Psimet 50/58 50 58 23.0 Carbon 1,540 $ 1,500
Boyd 60/60 60 60 23.5 Carbon 1,660 $ 1,500
Bontrager Aura 5 TLR 50 50 23.0 Aluminum 1,720 $ 1,200
HED Jet 5/Jet7 54 75 23.0 Aluminum 1,800 $ 1,600
Flo 60/60 60 60 24.4 Aluminum 1,940 $ 900

My next choice was brake track material. I went back and forth on this a few times. Heavy wheels are a problem both when climbing as well as when accelerating... braking becomes an issue when descending... the majority of time spent riding is on training rides where braking is important... I really like climbing up Lemmon... and on and on. In the end I decided to go with aluminium. So my choices were between the Bontrager, HED, or Flo.

Bontrager. The Bontrager rim shape is not as rounded as the HED and Flo rims, but they do provide the ability to go tubeless (one of the only carbon rims out there that is tubeless compatible). I'm not very interested in going tubeless, but if you are these are a fantastic option. With just a 50mm depth wheel in the rear they aren't as aerodynamic, but they are almost 100 grams lighter than the HED wheels, and over 200 grams lighter than Flo.

HED. Steve Hed has been a big player in the wheel market for a long time. HED is mentioned alongside with Zipp and Enve as one of the top manufacturers out there. Their wheels feature the wide C2 rims, as well as Stability Control Technology (SCT), meant to provide excellent performance in crosswinds. They also focus on lateral stiffness in the design of their wheels. A bit on the heavy side, and more expensive -- but a very attractive option for me.

Flo. I wish they had a 40-50mm offering but right now they only have 30mm, 60mm, or 90mm (or full disc). They are wider than the Bontrager and HED wheels, which I believe results in their better aerodynamic performance (see graph below). But they are a bit heavier at almost 2,000 grams. I looked at going with a 30mm in the front and 60mm in the rear, which saves 150 grams albeit with a bit of an aerodynamic penalty. I felt though that the 30/60 combo looked a little strange (depth difference being too great). For a TT bike, I think the Flo 60 up front with the Flo Disc in the rear would be a fantastic wheelset.

Drag vs. Yaw Angle

I checked EBay and found a set of HEDs with the Jet 5 up front and Jet 7 in the rear. The set was barely used (reportedly bought in May 2013, raced 3 times, 300 miles) and at a great price. I talked with my friend, Jason (who has a set of Jet 5s), and his opinion was to definitely go with the Jet5 / Jet7 set. For races with long sections of grades above 5% these wheels won't be ideal and I'll probably opt for a lighter set, but for everything else I'm thinking they will perform very well. Look for a review of these wheels here in the (hopefully near) future.

HED Jet 7 (rear) and Jet 5 (front)

In Part 4 the build begins! I'm hoping to be descriptive enough and provide enough photos that the posts are useful to anyone who does their own build project.

Bike Build Part 1 Bike Build Part 2 Bike Build Part 3 Bike Build Part 4

Small Gains

Thursday, December 12, 2013


I met with the doctor again today after some more x-rays hoping to hear, "You can take that brace off now and burn it." Unfortunately, like Cousin Eddie's daughter getting cured off the Wild Turkey, I'll need to slowly wean myself out of the brace over the next two weeks.

I spent one glorious hour sans brace today, and will be out of it for two hours tomorrow. Three on Saturday, four on Sunday, and so on and so forth until the brace-burning ceremony the day after Christmas. After I'm out of the brace for good, I start physical therapy -- which is currently set to be twice a week for 6 weeks. Once all that is finished (mid-February), I head back to get more x-rays and another check with the doctor to make sure none of the vertebrate fell out. Well alright, they don't fall out but I have no clue what they check for and as Hirsch put it, it's really none of my business.

I wish this could all happen quicker. I wish I could be back on the bike before the end of the year. I wish I was typing this post right now without the brace.

But I'm a man. I can be patient. If I have to. I guess.

It felt great to be free of the brace for an hour today, and I'm really looking forward to two hours tomorrow. It isn't going as quickly as I'd hoped for, but baby steps are still steps -- any progress is better than none. Sometimes personal records are just one second faster.

I'll take it.


And be extremely thankful for it.