PBR 525 Sprocket 42T For *Marchesini/BST Wheels (PBR-4456-42)
PBR Hard Anodized Aluminum 42T rear sprocket for *Marchesini or *Blackstone Technologies (BST) wheels.
This is the sprocket that you will need to buy to fit your Marchesini or BST wheels to your Aprilia.
Hub center diameter is 76mm. Bolt spacing is 100mm.
*Please note: Fits Marchesini / BST hub pattern wheels only. Compare dimensions above before ordering.
**Please note: We've noticed all these sprockets come with the superficial scratches visible in the photo below. We're not sure what's causing them, but the are always on the part number side of the sprocket. Since the back of the sprockets do not have these marks and the design is symmetrical, you can install them flipped 180°, for cosmetic reasons.
****OEM Aprilia Wheels are NOT Marchesini / BST***