This mountain bike rear derailleur guide wheel is engineered for optimal performance and durability. Made from robust aluminum alloy, it features an 11-tooth design that enhances gear shifting efficiency. Ideal for both casual riders and competitive cyclists, this guide wheel ensures smooth and reliable performance on any terrain. Features - Color: Blue -Material:Aluminum Alloy - Size: 4.50X4.50X2.00cm/1.77X1.77X0.79in -Efficient guide wheel: the aluminum alloy guide wheel reduces energy loss, enhancing your riding efficiency and enjoyment -Practical: This mountain bike aluminum alloy rear derailleur guide wheel is engineered for optimal performance -Stable and secure: ensures a stable riding experience, giving you the confidence to enjoy your cycling adventures -Smooth shifting: the derailleur provides fast and accurate gear changes, ensuring a smooth riding without interruptions -Wide adaptable: good for mountain biking, offroad adventures, and more, enabling you to conquer different landscapes effortlessly Package list: 3 x Guide Wheels