AFAM Superlight Hard Anodized Aluminum 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.
****OEM Aprilia Wheels are NOT Marchesini / BST***