PRO Gap Cap Expander - Carbon BF Apparel incorporated aspects from the aerospace

incorporated aspects from the aerospace industry and reworked the design to create a premium top wheel

Spoke Anti-Rotation System

PD-R550 and PD-R540

Ultra-lightweight of 23 grams offers ultimate performance with minimal weight

Head presta Valve With Integrated Dust Cap

PRO Gap Cap Expander - Carbon BF Apparel incorporated aspects from the aerospaceThe PRO Gap Cap Expander Carbon is PROs lightest Gap Cap Expander, designed to help reduce the weight of your cockpit. Designed to provide you with a better sports bicycle experience the PRO Gap Cap Expander Carbon is the ideal upgrade for weight conscious cyclists looking to further reduce the weight of their cockpit set ups. Weighing just 24 grams, which is 16 grams lighter than the previous model, the carbon steerer tube compatible gap cap