Rear Sprocket for Yamaha Exciter 150 (Wheelie)

The rear sprocket for Yamaha Exciter 150 (Wheelie) transfers drive from the chain to the wheel. Wheelie identifies the sprocket design for Exciter 150. It does not establish a performance change.

What does an Ultralumin 7000 aluminum sprocket offer?

The sprocket is machined from Ultralumin 7000 aluminum and anodized. Aluminum weighs less than steel at the same volume, making it an option for riders seeking a lightweight rear sprocket material. Anodizing adds color and helps protect the aluminum surface. The teeth still require the correct chain size and wear inspection during maintenance. The complete sprocket's weight also depends on thickness, tooth count and center cutouts.

Selecting tooth count and chain size

The final drive ratio is calculated by dividing the rear sprocket tooth count by the front sprocket tooth count. Retain the existing rear tooth count when replacing worn parts, or select a different count if you want to change the final drive ratio and have checked the chain length. This sprocket range offers versions from 41 to 46 teeth. This product uses a size 428 chain. Check the markings on your bike's chain.

Checking the rear wheel assembly

To compare weight with the aluminum-center, steel-tooth version, weigh two sprockets with the same chain size and tooth count. The distance from the carrier seating face to the center of the tooth ring must be correct. Matching tooth counts alone cannot resolve fitment if the chainline is incorrect.