tubular Corsa G+, 23 vs 25 on Bora 2015

Discuss light weight issues concerning road bikes & parts.
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Alexandrumarian
Posts: 192
Joined: Mon Mar 28, 2016 6:34 pm
Location: Romania

by Alexandrumarian

I recently ordered a 2015 tubular Bora set and Corsa G+. I intended to get 25s, but accidentally selected 23... I searched a fair bit but most talk is about clinchers. Buy a new set of rubber or wait to arrive and give it a try.

Thanks!

by Weenie


hannawald
Posts: 246
Joined: Sat Dec 17, 2016 7:28 pm

by hannawald

if you can return them, take 25mm...it´s a golden standard..

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kgt
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Location: Athens, Greece

by kgt

+1

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

by Calnago

23's are not the best fit for these rims. The width at the brake track will be your widest point, leaving it quite vulnerable to damage. Also, the radius of the rim bed is designed around a 25mm tire. A smaller radius tire would tend to want to pull away at its edges. On a tubular, the edges are where you want a good strong bond. If one was going to mismatch the tire and rim combo, a slightly larger radius tire than the rim bed radius would be preferable to a tire which had a tighter radius than the rim bed.
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Alexandrumarian
Posts: 192
Joined: Mon Mar 28, 2016 6:34 pm
Location: Romania

by Alexandrumarian

Thank you! I just bit a couple of Arenbergs.

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