The factory brake caliper is made from high strength aluminum, which makes it stiffer without adding any weight. The increased stiffness of the brake caliper results in a more precise pressure point and improved brake power. Note: When mounting on 2016 TC 125 and FC models, the CNC brake caliper support (P/N 777.13.975.010.30; sold separately) must be used instead of the brake caliper support supplied due to the larger axle diameter. Husqvarna PowerParts P/N: SXS07125712.