sourcing map 2 Set Bicycle Rear Derailleur Pulley 14T Ceramic Bearing Wheel Aluminum Alloy Guide Roller Wheels for 8/9/10/11 Speed Transmission System Road Bike Mountain Bike MTB BMX, Black

• Size - Teeth of guide wheel: 14T; Spindle hole diameter: 6mm / 0.24" (Comes with 4mm / 016", 5mm / 0.2" reducer sleeve) ; Outer diameter: 55mm / 2.17"; Color: Black. Package includes: 2pcs bearing guide wheel + 2pcs 4mm/5mm reducer sleeve.
• Material - The bicycle derailleur pulley is made of aluminum alloy through CNC processing, which not only ensures maximum strength and durability but also is lightweight and easy to carry. The durable anodized finish offers excellent corrosion resistance and prevents rust, ensuring long-term durability.
• Features - The rear derailleur adopts a smooth bearing design, which is strong and not easy to deform, has low friction, high transmission efficiency, smooth speed change, and improves riding efficiency. The positive and negative tooth design has a tighter mesh, reduces lateral displacement, short the speed change response time, and improves the speed change performance.
• Application - Bearing guides are equipped with reduction sleeves, which are speed-flexible and can be used in center bolt transmissions. Suitable for mountain bikes, road bikes, folding bikes, track bikes, mountain bikes, BMX bikes, down hill bikes, etc.
• Note - Do not over tighten the screws that secure the pulley to the derailleur during installation, as this will increase friction with the rear derailleur and reduce the performance of the bicycle pulley.

The bicycle derailleur pulley is made of aluminum alloy through CNC processing, which not only ensures maximum strength and durability but also is lightweight and easy to carry. The durable anodized finish offers excellent corrosion resistance and prevents rust, ensuring long-term durability. The rear derailleur adopts a smooth bearing design, which is strong and not easy to deform, has low friction, high transmission efficiency, smooth speed change, and improves riding efficiency. The positive and negative tooth design has a tighter mesh, reduces lateral displacement, short the speed change response time, and improves the speed change performance. Bearing guides are equipped with reduction sleeves, which are speed-flexible and can be used in center bolt transmissions. Suitable for mountain bikes, road bikes, folding bikes, track bikes, mountain bikes, BMX bikes, down hill bikes, etc. Note: Do not over tighten the screws that secure the pulley to the derailleur during installation, as this will increase friction with the rear derailleur and reduce the performance of the bicycle pulley.