Race Tires Vs Regular tires
06-03-05, 08:25 AM
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Whats the difference from a say Cosmic Carbones to Shimano 105s that I have on my bike... Apart from the weight which I believe can be more different than 100 grams.
Plus why is buying wheelsets separately so fn expensive when I can get a bike with the same wheels for 1.5X the price??.
Plus why is buying wheelsets separately so fn expensive when I can get a bike with the same wheels for 1.5X the price??.
06-03-05, 08:40 AM
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Wheels or tires...
The main difference is quite alot. Aerodynamics is the first thing... then weight, then construction, then stiffness, etc. etc. You have to ride a "cosmic carbone sl" wheel to really see the difference. The difference can be quanitated to more than 1 MPH easily.
Now for tires, race tires have a high TPI rating... i.e. more threads, stronger and more responsive and I believe for forgiving and grippy in the corners.
The main difference is quite alot. Aerodynamics is the first thing... then weight, then construction, then stiffness, etc. etc. You have to ride a "cosmic carbone sl" wheel to really see the difference. The difference can be quanitated to more than 1 MPH easily.
Now for tires, race tires have a high TPI rating... i.e. more threads, stronger and more responsive and I believe for forgiving and grippy in the corners.
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06-03-05, 09:32 AM
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Dude wheres my guads?
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Ehh sorry guys.. I meant wheels and not Tires... my58vw, 1MPH is a very tangible difference dang... I saw a quintana roo Tiphoon with cosmic carbone SLs for 4000 bucks... The wheelset alone is 2000 bucks right?.. I shall give it a test ride... 
06-03-05, 09:36 AM
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Racing wheels will give you an aerodynamic advantage, esp at higher speeds or a weight advantage for hills
Training wheels (std 32 spoke style) will soak up damage better, be easier to maintain and repair and are generally better for daily riding.
If your racing wheels are robust enough to withstand daily high-milleage, all-weather training, then they have too much metal.
Training wheels (std 32 spoke style) will soak up damage better, be easier to maintain and repair and are generally better for daily riding.
If your racing wheels are robust enough to withstand daily high-milleage, all-weather training, then they have too much metal.
06-03-05, 09:38 AM
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Originally Posted by MichaelW
Racing wheels will give you an aerodynamic advantage, esp at higher speeds or a weight advantage for hills
Training wheels (std 32 spoke style) will soak up damage better, be easier to maintain and repair and are generally better for daily riding.
If your racing wheels are robust enough to withstand daily high-milleage, all-weather training, then they have too much metal.
Training wheels (std 32 spoke style) will soak up damage better, be easier to maintain and repair and are generally better for daily riding.
If your racing wheels are robust enough to withstand daily high-milleage, all-weather training, then they have too much metal.
06-03-05, 09:44 AM
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Originally Posted by PenguinDeD
?! What about all the guys that swear by Kysiriums and race them too?!
06-03-05, 09:48 AM
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Originally Posted by 53-11_alltheway
They are heavy wheels, that's why. Okay, they are very well made too.
06-03-05, 09:50 AM
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Originally Posted by PenguinDeD
My point was that a rim can be raceworthy and bomb proof at the same time.
06-03-05, 09:53 AM
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Originally Posted by 53-11_alltheway
A lot of other wheels are raceworthy and bombproof too though.
06-03-05, 09:54 AM
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Deep section aero wheels are better than a conventional 36 spoke wheel and are all about the same within the limits of measurement.
1 mph?
06-03-05, 10:00 AM
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Originally Posted by Phantoj
https://www.bikeforums.net/showthread...eel+drag+tests
06-03-05, 10:08 AM
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Originally Posted by Ben Cousins
Interesting thing to note from that article.
The rider is 90% of the drag on a the bike/rider combination. So wheels are 10% of 10%. 1% of the drag on the bike/rider.
You could probably get the same effect of super expensive aero wheels by dipping your head down by an inch, or moving your elbows in by 2 degrees
The rider is 90% of the drag on a the bike/rider combination. So wheels are 10% of 10%. 1% of the drag on the bike/rider.
You could probably get the same effect of super expensive aero wheels by dipping your head down by an inch, or moving your elbows in by 2 degrees
06-03-05, 10:09 AM
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Originally Posted by Ben Cousins
Interesting thing to note from that article.
The rider is 90% of the drag on a the bike/rider combination. So wheels are 10% of 10%. 1% of the drag on the bike/rider.
You could probably get the same effect of super expensive aero wheels by dipping your head down by an inch, or moving your elbows in by 2 degrees
The rider is 90% of the drag on a the bike/rider combination. So wheels are 10% of 10%. 1% of the drag on the bike/rider.
You could probably get the same effect of super expensive aero wheels by dipping your head down by an inch, or moving your elbows in by 2 degrees
06-03-05, 10:24 AM
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So then if drag is 90 percent rider then why do we care to even think about using lightweight wheels and aero frames, etc then... because everyobe else does.
At higher speeds 25+ MPH turbilance caused by the motion of a rotating object is not a small matter. On my tt bike adding aero wheels to already extrememly aero eqipment under the average of 3 runs and same conditions gave approx. a 1 MPH performance advantage over standard aero wheels...
I.e. - tt bike. normal wheels - 24.1 MPH, 24.4 MPH and 24.2 MPH compared with 25.3 MPH, 25.6 MPH and 25.1 MPH for the same bike on the same 2 mile course same day, etc. with the aero wheels... about 1 MPH
At higher speeds 25+ MPH turbilance caused by the motion of a rotating object is not a small matter. On my tt bike adding aero wheels to already extrememly aero eqipment under the average of 3 runs and same conditions gave approx. a 1 MPH performance advantage over standard aero wheels...
I.e. - tt bike. normal wheels - 24.1 MPH, 24.4 MPH and 24.2 MPH compared with 25.3 MPH, 25.6 MPH and 25.1 MPH for the same bike on the same 2 mile course same day, etc. with the aero wheels... about 1 MPH
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06-03-05, 10:24 AM
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Originally Posted by Ben Cousins
What about the guy who won the TdF on Ksyriums in '99?
If he was using another wheel, I wonder what it was?
06-03-05, 10:56 AM
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The analytic cycling page shows .2 m/s difference in a breakaway for Specialized tri-spokes vs. "normal" 36-spoke wheels. .2 m/s equals about a half a mile an hour.
I'll take an extra 1/2 mph any day!
I'll take an extra 1/2 mph any day!
06-03-05, 01:38 PM
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Originally Posted by PenguinDeD
?! What about all the guys that swear by Kysiriums and race them too?!
