Aprilia RS125 2mm rear sprocket spacer

Machined from 2mm 6082-T6 aluminium. Fits standard three spoke and five spoke, and three spoke Marchesini SP wheels. Will not fit later OZ style wheels fitted to 2006-on bikes.

Useful if you need to move the rear sprocket out to line the chain up or clear a wider tyre, and much safer than using individual washers/spacers behind the sprocket.