2Pcs Bicycle Derailleur Pulley Set 11T 13T MTB Road Bike 8-11 Speed
Available in 11T and 13T sizes, suitable for Shimano and Sram compatible bikes. Weight: 11T(9g), 13T(12g). 2pcs Rear Derailleur pully. Apply for most of rear derailleur on the market.
MEROCA 2Pcs MTB Bike Jockey Wheels 11T 13T 8-11 Speed Shimano SRAM Pulley
Compatible with 8–11 speed Shimano and SRAM systems. Smooth performance, durable build, and ideal for bike repair and upgrades. Weight: 11T(9g), 13T(12g). 2pcs Rear Derailleur pully. Fit for 4/5/6mm roller screw axis.