Black main frame is a genuine BMW part with catalog number 46518536139 (BMW notation: 46 51 8 536 139). It is listed in the Motorcycle Parts & Gear category of our catalog. Weight: 10.98 kg. Price: 1 884,45 € excl. VAT. We source every part to order — that usually takes 1–2 weeks — and every order comes with a VAT invoice.