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The Birzman Valve Extender Set 40mm is ideal for riders with deep-section rims or those needing valve extension
allows for quick and easy installation and removal
it attaches discreetly under a bike seat by clamping onto the rails
Ideal for serious road racers
This company is the world's largest manufacturer of bicycle tyres
100% COGNITO D3O FF MTB Gloves Black Size:MD The Birzman Valve Extender SetThe 100% Cognito D30 Full Finger Gloves offer excellent trail protection without adding weight or compromising fit and feel. They feature D30 protection on the knuckles for top level impact resistance, combined with a 4 way stretch abrasion resistant top hand for confident riding. The perforated single layer Clarino palm ensures excellent airflow and comfort, providing a comfortable feel with great control and bar feel.
