BMW Motorsport/AP Racing 390mm Disc Mounting Bobbin

This part is listed by BMW as BMW part number 34108431746 (34 10 8 431 746) and is described as the bobbin sleeve used on the front disc on F82 M4 GT4 (homologation part). Bobbins can typically be re-used but are not indestructible and should be replaced as part of a regular maintenance routine. Sold per bobbin, 12 required per disc.

This is a part that we buy directly from BMW Motorsport. It was originally designed by Motorsport engineers for competition use in a factory BMW racing program. As a part designed for competition use, it does not have a warranty. BMW Motorsport parts may sometimes be in short supply and orders are released at the discretion of BMW Motorsport. If a part is not in stock, contact us for the latest estimate on delivery time.

BMW Fitments:

4 Series
F82 / F83 (2015-2020) > M4 GT4