tldr; Super fast, so fast I can't handle it which is speaking to me as a rider; added +1mph to my avg; +3mph to my top-end; horrifying in crosswinds; carbon rim brake technology has come a long way and it's bittersweet that disc is taking all the R&D energy right now; perfect wheels for flats/rollers/calm conditions; would buy again wish I did sooner; A++ thanks Campy.
The Book Report Edition (and for zappa and those others who are curious):
- Setup: WTO 60's - Setup Clincher 25mm GP5k's @ 85psi
- I'm 63kg±1kg.
- The wind conditions here in summer are 2mph to 22mph (3kph to 32kph) based on time of day. Every. Freaking. Day.
Seriously, handling deep dish in heavy cross winds is crazy when you're light.
Wind conditions for this coming week in July, followed by a typical Wind(max) last month in June.
Did a 70mi/2.6kft flat/roller out-and-back yesterday, one I do very often solo.
1. Was able to add +1mph avg (hand-wavey I know, rofl)
Was able to average +20mph solo, including stoplights. Usually finish with 19mph on Shamal Mille equipped on the same bike.
I get it I get it y'all -- need to look at avg power, where you used the power, and even then there's way too much uncontrolled variation across 70mi's to make a judgement. Alls I can say is it took way less effort on these wheels to finish the ride on a course I do very often and am familiar with for the past several years. I cruised over half the ride in Z1~Z2, whereas on the Shamals I am killing myself in Z3 and higher.
2. Textured brake tracks and red pads are strong.
I've ridden Bora 35's before, and the WTO's stop just as great. Campy carbon braking is famous for a reason. I'll have to see how quickly the pads degrade. Blue Pads on anodized black aluminum wear out super fast (and yes, fast degradation is part of why the pads stop so well. Physics.)
3. Sounds like a silly paid-for bike review, but for deep dish carbon rims the WTO's are stiff without being stupid harsh.
- Maybe I got lucky, but the WTO 60's are working perfectly on my XR4, without any undesirable "surprise" system flex. I've done a few deep dish + frame combos in the past where introducing the carbon deep dish caused completely messed up flex, which always result in rubbing brake calipers, which results in opening the calipers, which results in even worse braking performance on weak carbon brake tracks. Mother fuuuu-----
- Yes, I understand now that this always comes down to hub + spoke count. https://www.slowtwitch.com/Tech/Debunki ... _3449.html
- My point is, back in the early/mid 2010's there was a TON of bad carbon wheels out there so no matter how many times you rebuilt the wheels or switched them across frames, you had to go out of your way to buy a new hub or spokes or rim to get them to stop flexing. To the point where sometimes, buying off-the shelf carbon rims was setting you up to just buy a custom wheel build anyway (thanks Enve and FFWD). I'm just happy that the WTO's "just work" out of the box. Funny to this day I still have such low expectations.
- Next point, is those circa-2015 carbon wheels were unnecessarily stiff and harsh. It's like the early-day carbon frames when manufacturers were still experimenting and trying to figure themselves out. Some frames would be super light, super stiff, and super terrible to ride. In modern times, it seems like most manufacturers have found a balance between weight, comfort, stiffness. These are the WTO's. And these are exciting times to live in.
- Overall, carbon rims have come a long way. It's kind of sad to see the technology being shoved out of the spotlight right as things are starting to get interesting. All the energy is being poured into disc right now.
4. My top end sprint added +3mph.
I went from 32mph to 35mph for similar bursts. I'm struggling to understand why. First, new wheel placebo motivation's playing into it. Second, I know these wheels are heavier. Once I spin up the wheels, it simply easier to "keep spinning" past beyond what I can do on lighter wheels. It is making me rethink some of my WW builds. Lastly, the few extra aero watts saved at higher speeds must be helping me penetrate that upper end ceiling. Kinda cool. Thanks placebo effect, I'll give the crown to you.
5. Dude, crosswinds freakin' blow. Hard.
Everything about these wheels are fine and dandy when I left in the morning with gentle 5mph breezes. Then the afternoon +17mph winds hit. Sweet baby Jesus. I was actually glad because I was morbidly curious to see how they do in crosswinds. The gusts come from all angles and lasts for hours in the unexposed sections. It is downright dangerous as I'm draining lots of energy holding the bike straight and fighting imminent speed wobble. Also, I'm riding at average speeds of +27~30mph on some of these -2% straightaways, so managing the newfound speed with the potential consequences is downright horrifying.
It was really hard to handle and if I were to do it again, WTO 45mm's are the all-day wheels. However, the goal of these wheels was to equip them on a full-aero setup. So for a build where I swung the pendulum in that extreme, the WTO 60's are perfect. I'm only going to take these out for early mornings when conditions are calm, and moreso during non-summer seasons when the wind chills out.
Waiting on Vittoria Corsa TL's to arrive. Gonna research what PSI to run them at. If anyone has recommendations, lemme know.
I gave up on the 25mm GP5k TL's. If anyone wants to buy the pair I'll sell them $50ea.
Yeah... awesome wheels....