Kraus KRA-UN-BR-22-A 108mm Front Axial to Radial Caliper Mounts Black for Harley-Davidson Big Twin 00-UpUpgrade to Radial brake calipers with these easy to install mounts. The increased fluid capacity of aftermarket radial brake calipers improves lever feel and overall braking performance. Fitment Use aftermarket 108mm radial brake calipers on 2000 and up stock Harley forks. The 108mm is ambidextrous. Run them on the left or right side. If you have dual disks, order a set of two. For use on stock 2000 and up Harley forks. This conversion will require