18T Rear Derailleur Ceramic Pulley 9/10/11 Speeds Hollow Eccentric Pulley Wheel Bike Guide Upgrade Kit for R8000/7000 Bicycle Parts

18T Rear Derailleur Ceramic Pulley 9/10/11 Speeds Hollow Eccentric Pulley Wheel Bike Guide for Shimano R8000 R7000 MTB Road Bicycle Part Features: 1.Deep Tooth Structure Design: The deep tooth profile of our bicycle jockey wheel ensures solid chain engagement and minimal noise. Reinforced for a smoother ride, it reduces chain skipping and jamming, providing seamless transmission performance. 2.Full Ceramic Bearing, Ultra-Light and Silent: This rear derailleur ceramic pulley features self-lubricating, maintenance-free full ceramic bearings. and more sturdy than metal pulleys, it delivers exceptionally smooth movement with almost zero noise. 3.Anodized Surface Finish, Rust & Impact Resistance: The bike guide is finished with an anodized layer to enhance oxidation resistance, prevent rust, and improve impact strength - ensuring long-lasting performance in outdoor riding conditions. 4.18T Hollow Eccentric Design for Lightweight Efficiency: Equipped with an 18T hollow eccentric pulley wheel, this design further reduces weight and decreases friction. Enjoy quicker shifting response and more effortless pedaling at every ride. 5.Wide Gear Range Compatibility: The hollow pulley wheel is compatible with most 9/10/11 speed setups such as for Shimano, for LTWOO ERX/ER9/R9/R7, and for Magene QED (not compatible for LG long-arm versions). Please confirm your derailleur's specifications before installation.Specification: Origin: Mainland China Body Material: Aluminum Alloy + Ceramic Bearing Product Color: Multicolor Product Size: Approx. 7.3cm (2.87in) x 7.3cm (2.87in) Product Net Weight: Approx. 28g Compatibility: for Shimano 9-speed, 10-speed, and 11-speed universal; for LTWOO (ERX/ER9/R9/R7); for Magene QED Not compatible for LG long-legged shifters (some models with locking slots may not be compatible; please check your rear shifter before purchasing). Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding! Please allow a 1-2 cm difference in measurements due to manual measuring.