15T Bike Aluminium Alloy Guide Roller Ceramic Bearing Mountain Bicycle Rear Derailleur PulleyBlack

Feature: 1. Supporting for various speed shifting. Offers you a better cycling experience. 2. Can be applied for most mountain bike, bicycles, road bikes, folding bikes, etc. 3. Adopting aluminum alloy and ceramic material, this product is very durable to use. 4. This ceramic rear dial guide wheel is strong and light. Ceramic bearings ensure durability. 5. Easy to install, there are 2pcs installation accessories which help you install easily. Specification: Item Type: Rear Guide Roller Material: Aluminum Alloy + Ceramic Color: As shown in the picture Specification: 15T Length Size: Approx.55mm 2.17in Installation Size: Approx.6mm 0.24in axes Small Ring Size: Approx.4mm 0.16in Large Ring Size: Approx.5mm 0.20in . Package List: 1 x Rear Guide Roller2 x Accessories Note: 1. Please allow 1‑2mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Supporting for various speed shifting. Offers you a better cycling experience. Can be applied for most mountain bike, bicycles, road bikes, folding bikes, etc. Adopting aluminum alloy and ceramic material, this product is very durable to use. This ceramic rear dial guide wheel is strong and light. Ceramic bearings ensure durability. Easy to install, there are 2pcs installation accessories which help you install easily.