Colorful Bike Rear Derailleur Pulley 11T/13T Bearing Pulley for Mountain Bike,Road Bike

Label:Yes Smooth and Easy Shifting: Built in bearing guide pulley helps the chain move more smoothly through the rear derailleur. Supports cleaner shifting and more stable gear changes on climbs, descents and flat roads. Size Details and Use Advice: Offered in 11T about 41 mm and 13T about 49 mm diameter. Please try to match the original guide wheel size. If the same size is not available, choose a smaller one, do not choose larger than the stock wheel to keep good shifting performance. Compatible with 4, 5 and 6 mm axle guide wheels. Adjustable Axle Compatibility: Comes with a 4 mm sleeve and original 5 mm hole. Take the sleeve to change the hole to 6 mm, so it can fit 4, 5 or 6 mm guide wheel axle screws. Offers more choice when matching different derailleurs. Durable Aluminum Alloy Body: Made of quality aluminum alloy, light and sturdy for daily riding. Helps keep weight low while giving steady support for the chain and smooth running of the drivetrain. Colorful Upgrade for Mountain Bikes: Bright colorful finish adds a stylish touch to your bike. A nice replacement part and visual upgrade for mountain bikes, giving both good function and a fresh look.

Item Type: Bike Rear Derailleur Pulley Material: Aluminium Alloy Color: Colorful Optional Type: 11T, 13T 11T Diameter: Approx. 41mm/1.6in 13T Diameter: Approx. 49mm/1.9in Specification: Cpplicable to the Guide Wheel of 4/5/6mm Axes. Guide Wheel Selection Rules: Please try to choose the same as the original guide wheel, if there is no same, you can choose smaller than the original guide wheel, can not choose a larger one. Applicable: for SRAM and micro rear derailleur

Package List: 1 Set x Bike Rear Derailleur Pulley

Notes: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.