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Anyone Racing on 700x25c?

Old 12-30-12, 10:09 AM
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revchuck 
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Anyone Racing on 700x25c?

There are several racing tires out there available in 700x25c. For those who have tried them, how do they compare to 700x23s?
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Old 12-30-12, 11:24 AM
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Absolutely, I won't ride anything narrower than a 24/25. Just as fast, if not faster than a comparable 23 (see Velonews' article on tire rolling resistance) and more comfortable, but this has been discussed to death no?
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Old 12-30-12, 02:55 PM
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Seems like 23 is good enough.. I don't see a need for this. (for normal roads, not cobbles or offroad of course)
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Old 12-30-12, 04:28 PM
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23's are good enough for pretty much anything. Having said that, I do have a pair of 25 Pro3's that I'll put on for a particularly rough road race or if I think grip (think technical crit) is an issue. The weight difference is next to nothing. It's probably slightly less aero and slightly better rolling resistance...which probably tend to cancel each other. If you're running wide rims (i.e. Zipp Firecrest, et al.) the aero may not matter at all.

The wider tires ride better and have more grip, IMO. Having said that, I don't race on them often.
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Old 12-30-12, 08:05 PM
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Originally Posted by revchuck View Post
There are several racing tires out there available in 700x25c. For those who have tried them, how do they compare to 700x23s?
they are not so expensive... try a pair for yourself
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Old 12-30-12, 08:15 PM
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Originally Posted by Creakyknees View Post
they are not so expensive... try a pair for yourself
It's looking like that's what I'll do...waiting until these Vittoria Open Corsa EvoCX (320Tpi) Tyre Black/Black 700x25 come back into stock for $29 a piece at Ribble.
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Old 12-30-12, 08:53 PM
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My next set of Conti GP4000S tires (these are what I train and race on spring-fall) will be 25C. For what that's worth.
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Old 12-31-12, 08:17 AM
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I ran my Vittoria Evo Corsa CX's on my 58mm tubulars all season in a 25. I even put 700 X 25 Rubino Pro's on my Velocity A23's and crit and road raced in foul weather as well as all around training. I just ordered another set of 25 Vittoria tubulars for my incoming 38mm racing hoops. That's the only tubular size I have ridden so I cannot comment versus a 23. The 25's on the Velocity rims are sweet and feel more stable in corners and on our crappy Oklahoma roads. Several of the local racers who are P1,2 recommended them. I'm happy with them but cannot tell you they are any better for racing.
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Old 12-31-12, 10:35 AM
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I have raced on both and there is not too much of a difference. I have felt a fraction of stabilty at the very limit of cornering between the two widths. I do train all winter on 25's though because the roads are crap and here in PA, they throw stones all over the road at the first snowfall. I will bring those wheels/tires to the early spring races just in case conditions are horrible. I am not sure if they really do help but at least I have trained on them all winter and am thus more comfortable pushing them in the wet.

I think most people's bike pump tolerance being off + or - a few psi has more day to day influence on the feel of their tires than the difference between 23 and 25 widths.

Last edited by Number400; 12-31-12 at 10:52 AM.
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Old 12-31-12, 07:45 PM
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I race on Michelin Pro 3 25s, and they're much better than any 23s I've used, but I haven't used Pro 3s in 23 to compare. 25s certainly don't feel slow, and may (anecdotally) allow cornering faster with more confidence. I'm near the heavy end of the road racing spectrum, though.
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Old 12-31-12, 11:48 PM
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Just bought some new Rubino's marked 28. Probably super slow. I'm glad I'll have something to blame.
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Old 01-02-13, 10:53 AM
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I love 25's, but typically have 23's as the shop always gives me deals on them.
The ride is that little bit better and I never noticed any sluggishness.
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Old 01-02-13, 11:04 AM
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25's are a pain in the ass when paired with a narrow rim, so I run a mix-match. My front rim is 19mm wide, so I put a 23 on the front. My rear rim is 23mm wide, and my current training tire is 23mm, but I'll be racing on 25mm. I like'em. Make the road feel smooth and fast.
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Old 01-09-13, 09:07 PM
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About half the pro peloton was on 25's full-time in 2012. http://velonews.competitor.com/2012/...5c-tire_218011.

(And hello everyone, yes I still stalk around here on occasion. Hope everyone's doing well.)
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Old 01-09-13, 09:26 PM
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Originally Posted by ZeCanon View Post
About half the pro peloton was on 25's full-time in 2012. http://velonews.competitor.com/2012/...5c-tire_218011.

(And hello everyone, yes I still stalk around here on occasion. Hope everyone's doing well.)
Wow welcome back! I thought I was seeing things when I saw your name as the last person to post in the 33.
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Old 01-09-13, 09:40 PM
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I swing through occasionally, generally not posting anything, usually when I get a google notification that you jokers have been talking about me It's nice to see what you're all up to.

(I have that notification set up because most of the idiots that steal my work are also stupid enough to leave the byline on it. I'm not some narcissistic *******, promise.)
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Old 01-09-13, 10:14 PM
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It's a bummer that people steal your stuff.

At the same time though I guess that's flattering.

On the 25c tires... either I missed that article or I glossed over it. Or, more likely, I thought of the 6 or 8 new unglued tires I have and thought "I'll cross that bridge when I get there". Interesting.

I'm on 23s for what it's worth, on wide Stingers. And apparently I'm part Spaniard because I run them at 125/130 psi for most races.
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Old 01-10-13, 01:10 AM
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the ZC avatar gave me a viceral wave of nostalgia
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Old 01-10-13, 11:15 AM
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Originally Posted by ZeCanon View Post
About half the pro peloton was on 25's full-time in 2012.
What the hell do they know?
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Old 01-10-13, 11:18 AM
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700x20.....clincher

Get at me
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Old 01-10-13, 11:20 AM
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ok
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