Derailleurs

RollerBoys Ceramic Derailleur PulleysThese boys will keep you rolling forever!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...

This item is a sample item. It is in new condition, but may not contain its original tags and in rare cases can have markings or imperfections. Please note sample items cannot be returned or exchanged, so please choose carefully.RollerBoys Ceramic...

Experience unparalleled strength, durability, and performance with our Speed System, featuring a superior 14-Tooth / 18-Tooth pulley wheel combination. Unlike competitors, we reduce drivetrain friction without compromising durability, shifting...

These boys will keep you rolling forever!Experience an incredibly smooth bike ride that never ends with Rollerboys Ceramic. Crafted from robust composite material, and featuring a unique tooth pattern for lightning-fast gear shifts, these high-quality...

Elevate your cycling game with RollerBoys 12x12T Ceramic derailleur pulleys. Crafted with precision by EMS Swiss from a high-performance composite material and a 40% glass-fibre blend, RollerBoys promise unmatched durability and efficiency. Featuring...

Durable and super smooth Upgrading your bike with little details is so nice to do! The AluBoys will lift your bike to a higher level easily. The aluminium derailleur pulleys are super durable and make your chain roll super smooth over the teeth. The...