Acekit 11T Aluminum Alloy Bicycle Sealed Bearing Pulley Rear Derailleur Jockey Wheel For Road Bike MTB 7/8/9/10 Speed-Ceramic Blue

Description

For black/red pulley Size:11T Structure:sealed metal ball bearings Material:7005 aluminum alloy Diameter:11T--41mm; Color: black/red Weight: 9.3g/pcs Fit for 4/5/6mm roller screw axis Apply for most of rear derailleur on the market, support 7/8/9/10 speed For ceramic black/blue pulley Structure:sealed ceramic ball bearings with metal bearing frame(for most pulley with ceramic ball bearings, it's came with plastic bearing frame) Close fit tech (CF) with ceramic ball bearings, no grease resistance ultra smooth keep the chain working smooth, the jockey wheel no grease injection of the maintenance,save you time and money Material:7005 aluminum alloy Diameter:11T--41mm; Color: black/blue Weight: 9.3g/pcs Fit for 4/5/6mm roller screw axis Apply for most of rear derailleur on the market, support 7/8/9/10 speed Mote: Please choose the same size with the original pulley. If no totally same, choose the smaller type, never choose the bigger than original ones. Package: 1pcs bike pulley or jockey wheel