Vittoria Valve Extensions Add 2x Tubes:Yes Add Two Tubes New 16 and 17t Polished

New 16 and 17t Polished Cogs are in Hardened Chromoly for an even stronger

17t- 23t:  red locking ring

4 compounds for best speed

Specifications

It still delivers great aerodynamics and it is a little more biased towards grip and tyre support

Vittoria Valve Extensions Add 2x Tubes:Yes Add Two Tubes New 16 and 17t PolishedFor removable core tubes only Perfect for use with Stiffi wheels Vittoria Valve Extensions: High quality alloy valve extension, that work perfectly for tubes with RVC. Each extension has a rubber seal for excellent sealing at the joint. Great investment, as they can be used time and time again. Available in 20, 30 or 60mm lengths so you are covered for whatever rim depth you have. Comes packed in a blister pack with 2 aluminium pieces and spanner.