[CR]Simple one: why do sew-ups lose air more quickly?

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Date: Tue, 14 Nov 2006 19:48:56 +0000
From: "Simon PJ" <simonpj@mac.com>
To: <Classicrendezvous@bikelist.org>
Subject: [CR]Simple one: why do sew-ups lose air more quickly?

What is it about sew-up tubes that means that they 'leak' in a different way to the tubes in clinchers?

Thanks,

Wyndham Pulman-Jones,
Girton, Cambs.,
UK.