Colnago C64 Disc Tyre Clearance with Different Front Derailleurs

Discuss light weight issues concerning road bikes & parts.
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Tonyboj
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Joined: Thu Mar 08, 2018 11:29 am

by Tonyboj

Hi everyone,
Been reading this board for years, really appreciate all the knowledge-sharing going on! Keep it up!

Question for you Colnago dealers and riders that have worked with the new C64 (still waiting for mine).

On C64 Disc frame, will any component group's front derailleur affect the tyre clearance? I.e. would installing a Campagnolog SR Eps front derailleur hinder me from using the widest tyres on this frame?

Thanks!

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Calnago
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Joined: Sun Nov 07, 2010 9:14 pm

by Calnago

The chainstays will be the your limiting factor. This is NOT a fat tire bike. 28mm actual size... that does not mean 28mm Continental 4000sii clinchers mounted in wide rims. 28mm is plenty big for its intended use.
Colnago C64 - The Naked Build; Colnago C60 - PR99; Trek Koppenberg - Where Emonda and Domane Meet;
Unlinked Builds (searchable): Colnago C59 - 5 Years Later; Trek Emonda SL Campagnolo SR; Special Colnago EPQ

by Weenie


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Tonyboj
Posts: 3
Joined: Thu Mar 08, 2018 11:29 am

by Tonyboj

Calnago wrote:
Tue Apr 24, 2018 10:55 pm
The chainstays will be the your limiting factor. This is NOT a fat tire bike. 28mm actual size... that does not mean 28mm Continental 4000sii clinchers mounted in wide rims. 28mm is plenty big for its intended use.
The thing is, on my C60 Disc, I managed to mount a 30mm tyre. On that frameset the only limiting factor was the front fork which did not have enough clearance on top.

Thanks!

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Calnago
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Joined: Sun Nov 07, 2010 9:14 pm

by Calnago

Tonyboj wrote:
Calnago wrote:
Tue Apr 24, 2018 10:55 pm
The chainstays will be the your limiting factor. This is NOT a fat tire bike. 28mm actual size... that does not mean 28mm Continental 4000sii clinchers mounted in wide rims. 28mm is plenty big for its intended use.
The thing is, on my C60 Disc, I managed to mount a 30mm tyre. On that frameset the only limiting factor was the front fork which did not have enough clearance on top.

Thanks!
Well, I may ultimately stand corrected but I think it will depend on your tire/rim combo. You won’t have any issues heightwise as there’s much more room than the C60, and If the actual inflated width of the tire is really just 30mm then you might get away with it. But running a 30mm clincher on a wider rim will almost certainly end up wider than 30mm I would think. And that’s when it could get a little tight. I took some measuremnts with a 27mm Vlanderen tubular (pretty true to size) and the right side had about 4mm of clearance between the tire and chainstay for reference. Remember thinking I wouldn’t want to be using bigger than a 28mm. But as things go, you know people will try with varying degrees of success.
Colnago C64 - The Naked Build; Colnago C60 - PR99; Trek Koppenberg - Where Emonda and Domane Meet;
Unlinked Builds (searchable): Colnago C59 - 5 Years Later; Trek Emonda SL Campagnolo SR; Special Colnago EPQ

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