Archive for September, 2015

New Wheels – Dura Ace 9000 C35

September 16, 2015 12:11 pm
New Wheels - Dura Ace 9000 C35

Just arrived today are the new DuraAce C35 wheelset.  I ordered these from ProBikeKit in England less than 2 weeks ago and today the US Postal Service delivered them to my front door.

When I lived in California I used their little brother, the DuraAce C24 wheels.  They were a great lightweight wheel that well meet my needs with the extensive climbing there.  In Utah there is more flat riding and more pace line efforts and it should not be surprising that many riders here use deep dish carbon wheels.  I was not ready to go that far so decided on a middle ground and bought the DuraAce C35 wheels.  At a depth of 35 mm, vs 45 to 55 mm on many deeper wheels, they may not have the full aero benefits, but they are shown to be very aero and don’t have the same issue of dealing with cross winds that a lightweight person like me wants to avoid.  At the same time they only weigh 100 grams more than the C24 wheels. They are billed as a all around wheel that you can use for training and racing.  A friend was using these wheels on our Italy cycling trip and really liked them more than the C24 wheels he used previously.

I weighed them right out of the box without skewers.  They measured:

Front: 685 grams
Rear:  845 grams

Features from the spec sheet

• D2 Rim design optimizes aerodynamics and stability
• New hubs for 2013, optimized for 11-speed system, utilizing OptBal Spoke System to provide balanced tension = more rigid & durable rear wheel overall
• Extra wide hub flange maximizes lateral rigidity.
• High strength, lightweight titanium freehub body
• Shimano angular contact bearings and oversize A7075 Alloy Axles
• 16 spokes front, 21 spokes rear
• 10/11-speed compatible
• Weight (without QR & rim tape) F: 662g / R: 826g

As an engineer I like the approach of the OptBal spoke system where it has 14 spokes on the drive side (where the stress is much greater) and 7 on the non-drive side.  Most wheels use the same number of spokes on both sides even though when someone breaks a spoke, it is almost always on the drive side.

I also like that they have an aluminum braking surface.  I don’t trust braking on a full carbon clincher rim and I don’t want to switch brake pad every time I switch wheels (such as putting on tubeless wheels).

I have them all ready to roll now and will test them out tomorrow.  I wonder how much they might have helped me on my race last Saturday, Lotoja.  I setup the C24 wheels with a wider range cassette so Anne can use them when she needs lighter wheels than what came with her new bike or we are riding where we want tubed tires instead of the tubeless tires I currently installed for her.

 

Finished LoToJa Race

September 14, 2015 1:05 pm
Finished LoToJa Race

I finished my first Lotoja 204 mile race (Logan UT to Jackson WY) as a 2 man relay team with my brother. He assigned me the two back to back sections where there was all the climbing. This event is very different than the many double centuries I rode in California or the 500 mile relays I rode for Furnace Creek 508 or Hoodoo 500. Unlike all those, this had the feel of a real race and by far the most professionally put on event I have ever ridden in. You can ride it solo, which I think most do, or as a relay team. My brother and I entered in the USA Cycling sanctioned race category but they do have a citizen class category also. I saw neutral support vehicles often, following the fast packs and several officials on motorcycles monitoring you. They had well marked feed zones and relay transition zones. There were also neutral feed zones where you would take on a new water bottle or some gel on the fly from volunteers so need to stop. Also no need for any route sheet since every turn had volunteers flagging you where to go. The finish line was like being at a pro cycling event with barricades and a big screen leader-board. Riders names were called out as they came across the finish line. Overall it was quite an amazing experience. I understand now why this event is hard to go into. We were lucky to have Anne and Deanna crew for us and they did a great job.

How We Did

We ended up finishing a bit over our goal of 11 hours, 14th out of 28 in our category of 2 person relay team.  Since this category has no age divisions, we did reasonably well but I think much of that was due to my brother’s speed more than mine.

LotojaTimes

How I Did

I think I did reasonable well, but was a bit disappointed that I was not able to do my two sections faster.  It was quite different for me to be climbing a hill and being passed by so many.  Nevertheless, I had a goal of finishing in 6 hours and I barely met that goal unless you count the time when I stopped at the transition to change water bottles and take on food.  When I look at my performance after the fact, I was near the limit, with an average heart rate of 150.  I was able to average 15.6 mph over the 93 miles, that included nearly 6,000 feet of climbing.

What hurt my time was that I had to ride most all of the miles solo.  They started the race relay teams first, followed by the CAT 1 racers, then advanced to the slower riders in that order. So when I was riding I was either with Race Relay or Cat 1 or 2 riders.  Most of the race relay riders were doing a 4 or 5 man relay so they could go all out on their own segment.  The fast racers would come from behind me in a big back but their speed was way too fast for me to latch on, even for a short time.  Although you are suppose to only draft behind the group you start with, many took advantage of anyone around, but in my case there was few around me to hang with.  On the occasion when I was able to draft for awhile, it made a big difference, but I think I ended up riding 90% of the distance solo.  Not having a big guy to follow down the hills really hurt my time since I don’t have enough weight and skill to descend fast by myself.

I was trying to make sure I ate sufficiently and was often drinking, but I forgot to put electrolytes in my water bottle and ended up cramping about 20 miles from the end, on the steepest climb where I should have done my best.  I fought with the cramping issues until I finished since I didn’t have the luxury of just stopping for awhile to recover.

Although I did a lot of training for this, too much of the training was at a slower pace and there was not enough speed work, in my opinion.  That speed base can take a few months to build up and I was trying to do it in a few weeks.  Traveling to Italy for a bike tour was a contributor, although I did get a few days there where I was pushing the pace.

Then I might just have to accept that I was slower than many others because I am getting too old.  It is just not something I want to accept right now.

Here are the key stats from my ride.  You can see the Strava Suffer Score was rather high, due to a high average heart rate.  I guess I feel I put in my best effort on that day but I also feel that with that amount of effort in terms of heart rate should have yielded a bit higher power and my lack of fast twitch muscles, and therefore hard for me to jump on a passing pack, meant a slower overall pace that many riders who were doing the entire 204 miles.

LotojaSummary

When I look at a 70 mile Strava segment that include the 3 climbs I did, it is even more apparent.  Here I was the slowest of four people I follow on Strava and among those 65+ I was only 4th out of 5.  For the 65+ group on Strava I am use to being in the top few spots, not near the bottom.

Next Up

Next up is the Huntsmen World Senior Games.  I hope to do a bit better there since two of the three events I entered don’t allow drafting (hill climb and time trial).  I just wish I had a more optimistic view of how I was doing so I could do a better job of getting ready.  I have limited time to train now so it is more an issue of not losing my fitness than improving it.