PRG high-quality pulley wheels are perfect for improving the performance of your rear mech as they offer amazing longevity and less frictional drag than stock pulleys.
●Bearing is made by stainless steel, which are super fast, smooth and durable.
●Waterproof
●Dustproof
●Material: AL7075-T6
●Teeth: 11/12/13/14/15/16
●Bearing: Stainless steel
●Weight: 11g(11T)
●Color Options:Black/Red/Blue/Green
●Package:1PC / PRG ZIPPER BAG