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! The ceramic bearings make sure your pulleys will roll super smooth. High-quality pulley wheels are a must-have for every serious bike rider, with the RollerBoys Ceramic you are good to go!
|Product Name:||BBB Cycling Rollerboys Ceramic Derailleur Pulleys Shimano MTB 13T-13T BDP-19|
|rear derailleur accessories:||Jockey Wheels|
|manufacturer item code:||BDP-19|