Lixada 2pcs MTB Road Bike Ceramic Pulley 7075 Aluminum Alloy Rear Derailleur Guide Cycling Ceramics

Features: Anodized CNC machined construction. Anti rust/corrosion resistant anodized. Ceramic bearings. Fits for 4/5/6mm roller screw axis and most of rear derailleur on the market,support 7/8/9/10 speed. Specification: Color: Black / Silver / Blue / Red / Golden (Optional) Size: 11T / 13T (Optional) Diameter: 41mm / 49 mm Material: 7075 aluminum alloy + Ceramic bearings Package weight: 30 g / 1.1 oz

Package List: 2* Wheel 2* 4mm Installation Adapter 2* 5mm Installation Adapter