C24's for cyclocross

Especially for light weight issues concerning cyclocross / touring bikes & parts.

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chiltonp
Posts: 118
Joined: Fri May 01, 2009 8:48 pm

by chiltonp

Hey guys, never really gotten a straight answer here on this question.

Would you guys consider a set of 7850 c24's strong enough for a race wheel-set for cross?

:beerchug:

Thanks for the info.

by Weenie


clarkson
Posts: 188
Joined: Sat May 07, 2011 12:23 am

by clarkson

I would. Shimano pride themselves on durability, and if their carbon wheels are good enough for so many world champs, I'd say the alloys are fine too.

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F45
Posts: 856
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by F45

The aluminum clincher? I wouldn't be worried about strength, but that thin braking surface won't last long.

ninjaman
Posts: 36
Joined: Fri Aug 20, 2010 6:19 pm

by ninjaman

A buddy of mine swears by them, stiff and supremely robust according to him.

KvnP
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Location: Somewhere out there..

by KvnP

My C24's held up well until the last jump.. needed major truing.
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Frans
Posts: 550
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by Frans

I've raced a whole season on RS80s with no issue, I'm 85kgs and not very easy on my equipment.

allardklijnstra
Posts: 33
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Location: Oldeholtpade

by allardklijnstra

I have only seen shattered c35's due braking too hard. Alloy wheels are hard to break so should really be a problem.
You could also consider dura-ace hubs with mavic open pro rims. Should be around the same price but a bit more solid.

gaisdergerman
Posts: 18
Joined: Thu Aug 11, 2011 11:10 am

by gaisdergerman

There are 2 versions of the c24.
The tu version (full carbon and for tubes) is good for cross. The clincher also but the backing surface won't last long.

TurboKoo
Posts: 397
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

Actually there are 3 versions. Tubular (tu), tubeless (tl) and normal clincher (cl)
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Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

addictR1
Posts: 1220
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

silly question.. but what's the widest tire you can run on the c24 alu?

mattr
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by mattr

They are a fairly standard sized Road rim, so you'll be fine up to 33mm (Max size for cx).

addictR1
Posts: 1220
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

Nice... too bad I have the DA 7800 wheelset... Max is only 28 for this one. :(

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mattr
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by mattr

No it's not.
That's just what shimano tell you.

Almost the entire field of any cx race will be running tyres wider than that on rims that size, or narrower.
Only issue is if you are trying to run wide tyres at road pressures.

I've done ~10 seasons on open pro. With their 16(?) mm internal width and tyres up to 38mm. No issues.
Keep the pressures sensible, 40 psi or less, and you'll be just fine.

mattr
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by mattr

You could probably even go tubeless without breaking sweat.

by Weenie


addictR1
Posts: 1220
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

mattr.. sure about that? if it is.. then i can return the 28c tires - Continental Tour Ride Urban Bicycle Tire (700x28) i just picked up.

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