Mountain Bicycle 13T Ceramic Bearing Rear Derailleur Pulley for 8 9 10 11 Speed Blue

Feature: 1. With ceramic bearing, high lubricity, tight fitting structure ensures smooth rotation. 2. Lightweight aluminium alloy material, flexible rotation, mute work. 3. Come with reduction sleeve, fit for 99percent of derailleur pulley type. 4. Suitable for 8, 9, 10, 11 speed transmission system. 5. Wonderful accessory for mountain bike. Specification: Condition: 100percent Brand NewItem Type: Bike Derailleur PulleyMaterial: aluminium alloy + ceramic Color: blueWeight: Approx. 17gFitment: Fit for 4mm, 5mm, 6mm screw hole diameterSuitable for 8, 9, 10, 11 speed transmission system. . Package List: 1 x Bike Derailleur Pulley 2 x Reduction sleeve 2 x Locking cap