Aluminium Road Pulley Wheel Derailleur Bike Roller Pulley (red,13T)

Made of CNC aluminum alloy, lightweight and Anti rust and corrosion resistant anodized These pulleys run on bearings Description: The pulley is  made of aluminum alloy, so that it is very firm, lightweight and . Anti-rust and corrosion resistant. It run on bearings, and it s a necessary accessory for your . There are four different colors for you to choose from, to meet different needs. Hope you will enjoy your cycling. Have a nice day. Features: 1. Made of CNC aluminum alloy, lightweight and . 2. Anti rust and corrosion resistant anodized. 3. These pulleys run on bearings. 4. A necessary accessory for your . 5. Fits for almost all mountain bike of 11T or 13T. Specifications: Material: Aluminum Alloy Color: Black, Red, Golden, Silver Weight: approx. 13g, 16g Teeth: 11T, 13T (optional) 11T Diameter: approx. 40mm Celsius 1.57 Hole Diameter: approx. 5mm Celsius 0.19 13T Diameter: approx. 49mm Celsius 1.92 Hole Diameter: approx. 5mm Celsius 0.19 Compatible: Suitable for 4Celsius5Celsius6mm spindle shaft rollers Package Included: 1 x 11TCelsius13T pulley wheel