BBB - RollerBoys Pulleys S3-Colour-TAN/TAN/BROWN superior fit and top-notch safety

superior fit and top-notch safety features

7") 40 cm (15

for hub gear drivetrains

Width Adjustment: 37mm

Computational Fluid Dynamics (CFD) optimized aerodynamic shape to minimize system drag

BBB - RollerBoys Pulleys S3-Colour-TAN/TAN/BROWN superior fit and top-notch safetyBBB ROLLERBOYS PULLEYS The RollerBoys will make your bike ride so smooth that you will never stop anymore! The composite material is strong and durable and the special teeth pattern makes sure you can shift to a higher gear with the speed of light! High quality pulley wheels are a must have for every serious bike rider, with the RollerBoys you are good to go! BDP 01 1 10 10T Compatible with Campagnolo, Shimano, SRAM 7, 8, 9 and 10 speed BDP 02 1 11