Zipp Vuka Aerobar Extensions - Race Carbon High CheckoutTitle=SRAM Level Silver Stealth Disc Brake Caliper Assembly - Front/Rear 5mm Teeth 42 Crank Spindle

5mm Teeth 42 Crank Spindle Diameter 28

Carbon Heel Counter provides increased rigidity and precise control

BBS4116: 16 notch BB socket for 41mm diameter notch pattern

so over 90% of the road material consists of silica particles in sand and crushed stone that are harder than any metal

Zipp Vuka Aerobar Extensions - Race Carbon High CheckoutTitle=SRAM Level Silver Stealth Disc Brake Caliper Assembly - Front/Rear 5mm Teeth 42 Crank SpindleZipp Vuka Aerobar Extensions Race Carbon High. The Vuka Clip On is all about providing the ultimate in fit security and adjustability for you to be faster and more efficient in your triathlon or time trial aero position. Offered in affordable aluminum or high performance carbon fiber in both above and below bar configurations. Additional risers armrests and aero accessories available for fine tuning and maintenance. TECH SPECS Color Black Material