jrc components 11T ceramic pulley wheels - black

Description

11T Ceramic Pulley Wheels | JRC Components (jrc-components.com)
From website:
Upgrade your drivetrain with our JRC Components 11T ceramic pulley wheels! Performing to a much higher standard than standard Delrin pulley wheels & ensuring much higher mileage due to the slow wearing nature of machined aluminium, our 11T ceramic pulley wheels offer an experience like no other!
Spec:
Compatible with 9/10/11 speed chains (All systems using 11T pulley wheels: Shimano / Sram / Campagnolo)
Brass adaptor included allowing for use with Sram m4 bolt system
Crafted from billet aluminium, CNC Machines and Anodised
Hybrid ceramic bearings add to the pulley wheels for longevity and lessened friction. Fully sealed and packed with grease to ensure flawless use all year round
Ultra lightweight,17g per set (8.5g per wheel)
Available in 11 anodised colours
Compatible these Rear Derailleur Types:
Shimano 9/10/11 speed road systems (105, Ultegra [Di2], Dura Ace [Di2], etc...)
SRAM 10/11 speed mechanical dual road systems (Apex, Rival, Force, Red)
Campagnolo 9/10/11 speed (Centaur, Athena, Potenza, Chorus, Record [eps], Super Record [eps], etc...)
Included:
2x 11T Ceramic Pulley Wheels
4mm adapter for use with Sram derailleurs