Tensioning roller chain is a genuine BMW part with catalog number 46517678506 (BMW notation: 46 51 7 678 506). It is listed in the Motorcycle Parts & Gear category of our catalog. Weight: 0.083 kg. Price: 69,72 € excl. VAT. We source every part to order — that usually takes 1–2 weeks — and every order comes with a VAT invoice.