Racer Tech Thread
#5701
Senior Member
Speaking of weight, I got some new shoes today. Non-Sidi, without the heavy insole. 248g lighter for the pair, so about half a pound. Not sure how it'll affect me (pre-Sidi I ran 76g pedals with very light shoes, and it didn't help me too much) but at least I won't have the shoes as an excuse.
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"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
"...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson
#5702
Full Member
Just got some new wheels and am also going tubeless. Yoeleo 50mm up front and 60mm in the back. Conti 5000tl, went on pretty easy and holding air with minimal loss. Have yet to ride with tubeless due to weather and work schedule. Excited to give this a try. Definitely faster wheels than my old Mavic CC40's.
#5703
Cat 2
I ordered a set of those 5000tl for when the new road bike shows up. Good reviews and the 4000sii has been my go to tire for years, so figure it's worth a shot. Especially now that I'll have tubeless rims again.
#5704
I eat carbide.
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When aero wheels and low spoke count wheels started to take over there was only mention of all-up weight of a wheelset. Rim weight was never mentioned. Mr. Zinn came up with a way to compare the inertia of one wheel to another: a slender, long threaded rod was attached to the ceiling, the wheel was bolted firmly to the bottom of the rod with the rod taking up the place of the axle. The wheel was rotated 90 degrees and the number of back and forth cycles was noted. Heavier rim equals more cycles.
Even time trialing at a "constant speed" a racer is trying to accelerate his bike twice with each crank revolution. Excuse me if this is obvious but no test data ever takes this into account. I ride on roads in good condition for the most part, and the only thing I have ever noticed about "bigger, faster, better rolling" tires is their increased weight.
Even time trialing at a "constant speed" a racer is trying to accelerate his bike twice with each crank revolution. Excuse me if this is obvious but no test data ever takes this into account. I ride on roads in good condition for the most part, and the only thing I have ever noticed about "bigger, faster, better rolling" tires is their increased weight.
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#5705
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I just pulled the trigger on Etap; the shifting on my bike has been problematic the past few years; causing one crash and a few near misses. At the core is the difference between my race and training wheels which can't be perfectly switched out and tuned without a limit change. It can get 'close' with a barrel adjustment but far from perfect. The micro adjusting of etap should help.
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
#5706
I eat carbide.
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I just pulled the trigger on Etap; the shifting on my bike has been problematic the past few years; causing one crash and a few near misses. At the core is the difference between my race and training wheels which can't be perfectly switched out and tuned without a limit change. It can get 'close' with a barrel adjustment but far from perfect. The micro adjusting of etap should help.
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
Regardless you can use thin shims to get everything exact and repeatable if need be. Most shift systems now are close enough and like you mention - you can micro-adjust e-tap while riding in the drops.
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#5707
Version 7.0
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I just pulled the trigger on Etap; the shifting on my bike has been problematic the past few years; causing one crash and a few near misses. At the core is the difference between my race and training wheels which can't be perfectly switched out and tuned without a limit change. It can get 'close' with a barrel adjustment but far from perfect. The micro adjusting of etap should help.
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
When it works, I like it a lot and it is easy to adjust.
#5708
Senior Member
I just pulled the trigger on Etap; the shifting on my bike has been problematic the past few years; causing one crash and a few near misses. At the core is the difference between my race and training wheels which can't be perfectly switched out and tuned without a limit change. It can get 'close' with a barrel adjustment but far from perfect. The micro adjusting of etap should help.
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
I'm afraid to sprint because of that shifting issue, several times when shifting the chain doesn't grab the cog and the pedal 'slips'.
I'm probably going to have to get new wheels, @Psimet2001 whats the best way to ensure I get something that aligns with my race wheels?
#5709
Senior Member
Does anyone think Vittoria's claim on their new tire could be true? If so, it is a game changer.
https://www.velonews.com/2019/02/bik...nforcer_483748
https://www.velonews.com/2019/02/bik...nforcer_483748
#5710
I eat carbide.
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Does anyone think Vittoria's claim on their new tire could be true? If so, it is a game changer.
https://www.velonews.com/2019/02/bik...nforcer_483748
https://www.velonews.com/2019/02/bik...nforcer_483748
I am sure I will glue up a few this early season and we'll see. Rather others will see. I will just glue them and ask questions at this point.
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#5711
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Does anyone think Vittoria's claim on their new tire could be true? If so, it is a game changer.
https://www.velonews.com/2019/02/bik...nforcer_483748
https://www.velonews.com/2019/02/bik...nforcer_483748
#5712
I eat carbide.
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Didn't bother reading it - missed that it's a Crr reduction claim. Meh. Won't change anyone's placings in any race around here (meaning no it isn't a 1:20 improvement). Want to try it then get a set and run some trials. I'll wait for the 1:20 improvement just from the tires. Until then - it's all about the person who biases the numbers.
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#5713
Senior Member
I switched from 23mm conti 4000 on front, and 23mm Schwalbe on back with butyl tubes, to 25mm conti 4000 + latex tubes. Felt like a huge difference in rolling speed to me. But maybe just mental. I'm convinced tires make a significant difference, between good and bad tires/tubes.
#5714
Newbie racer
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Did any of the aeropod makers ever resolve the issue of not being able to use a Wahoo product?
I'd be tempted to try out a Velocomp for live CDA, but don't want to purchase and mount a separate cheapo used Garmin device somewhere just to display CDA.
I could. It'd be between my arms anyway. Just sayin.
I'm about to ditch the free HED basebar I was given for something that'll allow me more adjust-ability to try out some high hands, cup angles, and stuff.
I'd be tempted to try out a Velocomp for live CDA, but don't want to purchase and mount a separate cheapo used Garmin device somewhere just to display CDA.
I could. It'd be between my arms anyway. Just sayin.
I'm about to ditch the free HED basebar I was given for something that'll allow me more adjust-ability to try out some high hands, cup angles, and stuff.
#5715
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I have Etap WiFly. I had a problem with the rear sleeping and SRAM replaced it. It was good for a couple of months and they it started to sleep. I was going to send it back and it is now okay. Yours may be newer and perfectly fine. I am not sure about the current rear I have.
When it works, I like it a lot and it is easy to adjust.
When it works, I like it a lot and it is easy to adjust.
The best way right out of the box is to get the same hub/freewheel setup. If they are rim brake then most likely they will be close as it is.
Regardless you can use thin shims to get everything exact and repeatable if need be. Most shift systems now are close enough and like you mention - you can micro-adjust e-tap while riding in the drops.
Regardless you can use thin shims to get everything exact and repeatable if need be. Most shift systems now are close enough and like you mention - you can micro-adjust e-tap while riding in the drops.
Its not that you need training wheels per se, its more that you need training tires and its easier to swap out wheels than changing tires. I get a flat every 200 miles when goathead season is in full force if I'm not riding the Gatorskins.
#5716
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I switched from 23mm conti 4000 on front, and 23mm Schwalbe on back with butyl tubes, to 25mm conti 4000 + latex tubes. Felt like a huge difference in rolling speed to me. But maybe just mental. I'm convinced tires make a significant difference, between good and bad tires/tubes.
#5717
Senior Member
Upon my countless hours of research on etap I've heard the issue isn't common but happens often. Fingers crossed it doesn't happen here.
That's the plan going forward, next bike will probably be a disc setup and I'm going with the same company for race and training wheels. I'll have to talk to my mechanic about the shims.
Its not that you need training wheels per se, its more that you need training tires and its easier to swap out wheels than changing tires. I get a flat every 200 miles when goathead season is in full force if I'm not riding the Gatorskins.
That's the plan going forward, next bike will probably be a disc setup and I'm going with the same company for race and training wheels. I'll have to talk to my mechanic about the shims.
Its not that you need training wheels per se, its more that you need training tires and its easier to swap out wheels than changing tires. I get a flat every 200 miles when goathead season is in full force if I'm not riding the Gatorskins.
#5719
Cat 2
Moved to goat head territory. I hate every flat all spring and fall
.
I'm excited about the new vittoria mtb tires. They're really good and people discount them since maxxis and shwalbe are so popular
.
I'm excited about the new vittoria mtb tires. They're really good and people discount them since maxxis and shwalbe are so popular
#5721
Cat 2
Northern Utah. Since I'm jumping on all the 2019 trends (Disc brake, tubeless, big tires, (gravel bike...)) I'm hoping the sealant is going to help out. I used to run tubeless a couple years ago to great success but the wheels I moved onto weren't compatible. Since I'm running discs now a days I figure I'm pretty much committed at this point
#5722
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Timely post on FB from a friend today:
The pedal in, my first outdoor ride of the new season, was fantastic. I had a moment of doubt about my fitness, because the unrelenting gloom of power-based training and always striving to hit numbers does that to you if you let it, and I think that we all do.
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#5723
Cat 2
#5724
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Just upgraded my bike to eTap and added a 52/36 as well since I never needed the bottom end of a 50/34 at race weight. I know a lot of people will make a big deal about cadences, and how a 50/34 is fine, but really I want the 52 for that slightly quicker burst to close gaps or get up to speed descending.
I still may have to go to a 50/34, especially since I hope to do Everest Challenge.
The eTap is pretty nice so far, but all groupsets are nice on day 1.
I still may have to go to a 50/34, especially since I hope to do Everest Challenge.
The eTap is pretty nice so far, but all groupsets are nice on day 1.
#5725
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Frustrated with wet lube mess, bought spare chains and a crock and ultrasonic cleaner.
Giving wax a shot for a while.
Any efficiency improvements is just a nice side effect.
I will report back later.
Giving wax a shot for a while.
Any efficiency improvements is just a nice side effect.
I will report back later.