18T Ultralight Hollow Ceramic Bearing Jockey Wheel Rear Derailleur Pulley for 9/10/11/12 Speeds QED R8000 R7000 Road Bike DIY

18T Hollow eccentric large guide wheel

Teeth: 18T
Material: Aluminum Alloy, Ceramic
Weight: ≈28g
Compatibility: Universal for 9, 10, 11, 12 speed
L-TWOO (ERX/ER9/R9/R7)
Magene QED SRAM (Requires replacement of 16MM fixing screw for 11-speed/12-speed)
AXS (RED Road Edition Guide Plate)

(* May not fit certain derailleurs with protrusions. Users should verify compatibility with their rear derailleur before purchasing.)