Rear Sprocket for Benelli Leoncino 500

The rear sprocket for Benelli Leoncino 500 transfers drive from the chain to the wheel. Leoncino 500 has its own sprocket range. Do not infer compatibility from a TRK502 model made by the same manufacturer.

What does an Ultralumin 7000 aluminum sprocket offer?

The sprocket body is CNC-machined from Ultralumin 7000 aluminum alloy. Aluminum allows the center section to be shaped and has a lower mass than steel for the same material volume. The anodized surface adds color and helps resist corrosion. When selecting a new sprocket, check the tooth count and sprocket carrier. To compare it with a steel sprocket, use two sprockets of the same dimensions to establish the actual weight difference.

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. Available tooth-count options are 44, 45 and 46.

Checking the rear wheel assembly

Photograph the sprocket's back face and carrier mounting points to distinguish the two part numbers. 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.