11T Sealed Bearing Jockey Wheel Ceramics Jockey Wheel Pulley for MTB Road Bike

Label:Yes Name: Bike Rear Derailleur Pulley Suit: For Shimano,for MTB Road Bike Size: 41.4mm(1.63in) Brand New Type: Bike Rear Derailleur Pulley Material: Aluminum Alloy+Ceramics Color: As Picture Show Specification: 11T

Packing List: 1x Ceramic Bearing Jockey Wheel

Features: Improves Pedaling Speed By Reducing Friction: The Ceramic Inner Bearing, Specially Designed For Cycling, Has Minimal Friction That Significantly Improves Performance Thanks To a Much Smoother Transmission,It Can Effectively Restrain The Horizontal Swing Of The Chain And Make The Speed Change More Accurate. Circlip Type Design:Do Not Worry About The Bearing Will Rub The Edge And Cause Abnormal Noise. Two Adapter Are Given As a Gift, Which Is More Compatible And Can Be Converted Into 4/5Mm Bearings After Installation, With Flexible Rotation. Ultralight And Resistant: Made With CNC Aluminum Alloy That Ensures Maximum Strength And Durability With The Least Weight . Cnc Machining Construction Maximizes Quality For a Perfect Finish. Tips: Please Choose The Same Size With The Original Pulley. If No Totally Same, Choose The Smaller Type, Never Choose The Bigger Than Original Ones.