11T 13T Derailleur Pulley Aluminium Alloy Jockey Wheel Rear Derailleur Pulley Bicycle Guide Wheel Pulley for Mountain Road Bike 11T-Black

The pulley is  made of aluminum alloy, so that it is very firm, lightweight and durable. Anti-rust and corrosion resistant. It run on smooth ball bearings, and it's a necessary accessory for your bicycle. 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: --PREMIUM MATERIAL: This pulley is made of CNC aluminum alloy, which is lightweight, durable and long service life. --GREAT WORKMANSHIP: The bike guide wheel pulley is anti rust and corrosion resistant anodized. So it can be use a long time with good performance. --PERFECT FOR USING: This pulley runs on smooth ball bearings, it's a necessary accessory for your bicycle. It fits for almost all mountain bike of 11T or 13T. Hope you will enjoy your cycling. --MINI SIZE DESIGN:  The pulley is lightweight with compact size, which is easy to carry and storage. There are four different colors for you to choose and meet different needs. Specifications: Material: Aluminum Alloy Color: Black, Red, Golden, Silver Weight: approx. 13g, 16g Teeth: 11T, 13T (optional) 11T Diameter: approx. 40mm / 1.57" Hole Diameter: approx. 5mm / 0.19" 13T Diameter: approx. 49mm / 1.92" Hole Diameter: approx. 5mm / 0.19" Compatible: Suitable for 4/5/6mm spindle shaft rollers Package Included: 1 x 11T/13T pulley wheel