650 v 700 Wheels
05-12-05, 11:10 PM
#1
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Ok,
650 wheels are for TT?/Tri applications..
700 wheels are for RR and Track..
WHY??
I have heard that 650's are more stiff, get up to speed faster, etc. Wouldn't this be more beneficial on the Track or in Crits where you have short, quick, powerfull accelerations?
Aren't many/most TT's long enough that an initial "quicker acceleration" would be overshadowed by the "worse" performance of the smaller wheels over the long haul?
Just wondering how they "settled" on the different wheels for different uses. Do larger riders on 60cm/62cm frames often just stay with 700 wheels instead of the 650's?
p.s. Does anyone know of a cheap pair of 650 wheels? I guess they are pretty expensive because a) People spending money on a niche/specific/competition bike typically will pay, and b) much less demand so the prices will be higher...
650 wheels are for TT?/Tri applications..
700 wheels are for RR and Track..
WHY??
I have heard that 650's are more stiff, get up to speed faster, etc. Wouldn't this be more beneficial on the Track or in Crits where you have short, quick, powerfull accelerations?
Aren't many/most TT's long enough that an initial "quicker acceleration" would be overshadowed by the "worse" performance of the smaller wheels over the long haul?
Just wondering how they "settled" on the different wheels for different uses. Do larger riders on 60cm/62cm frames often just stay with 700 wheels instead of the 650's?
p.s. Does anyone know of a cheap pair of 650 wheels? I guess they are pretty expensive because a) People spending money on a niche/specific/competition bike typically will pay, and b) much less demand so the prices will be higher...
Last edited by ZappCatt; 05-13-05 at 01:10 AM.
05-12-05, 11:15 PM
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Actually, per another thread I saw where someone asked the difference between the two... it's actually because of the geometry of the TT bikes that they require a 650c wheel. The chainstays are shorter and the seattube is more upright, so a 700c wheel won't even fit. It's basically of necessity rather than out of any true "advantage" thereof.
05-13-05, 12:19 AM
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didn't Rominger take an experimental C40 to the 1994 Tour with mini-wheels??
Obviously it was a hit.
Obviously it was a hit.
05-13-05, 04:41 AM
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650c are for smaller riders.
Large riders use 650c is they want a very low front end or a tight rear triangle, but those were mostly fads.
Large riders use 650c is they want a very low front end or a tight rear triangle, but those were mostly fads.
05-25-05, 12:38 PM
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Doesn't the smaller wheel diameter slightly affect your gearing as well? I imagine even a small difference would factor in for racers or long distance rides.
in other words 42x12 with 700c = 93.7"
42x12 with 650c = 86.5"
This is using Sheldon Brown's wonderful "Gear calculator" (the man is my hero....)
in other words 42x12 with 700c = 93.7"
42x12 with 650c = 86.5"
This is using Sheldon Brown's wonderful "Gear calculator" (the man is my hero....)
05-25-05, 02:06 PM
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Originally Posted by ZappCatt
Ok,
I have heard that 650's are more stiff, get up to speed faster, etc. Wouldn't this be more beneficial on the Track or in Crits where you have short, quick, powerfull accelerations?
I have heard that 650's are more stiff, get up to speed faster, etc. Wouldn't this be more beneficial on the Track or in Crits where you have short, quick, powerfull accelerations?
05-25-05, 05:47 PM
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Originally Posted by pgoat
Doesn't the smaller wheel diameter slightly affect your gearing as well? I imagine even a small difference would factor in for racers or long distance rides.
All other factors like aerodynamics, weight, etc. aside, the perceived effort between 650 and 700 is the same assuming using the same gear inches.
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Last edited by Trsnrtr; 05-25-05 at 05:55 PM.
