Kartboy knows when it comes to brakes you just can't play around. If you like the new FHI 2 pot rear brakes; you need this adapter. Stronger than any aluminum adapter on the market; Kartboy went all out with these. These adapter kits also include all the mounting hardware utilizing grade 12.9 bolts; which are the strongest bolts available today. If you don't take chances when it comes to safety and the performance of your braking system; Kartboy's FHI 2 Pot Rear Caliper Adapters are for you.