Frenkit Rear Caliper Seal and Piston Kit NISSIN/TOKICO 629047 Frenkit Frenkit 629047: rear caliper seal and piston kit. See if it fits your bike. Honda CB 1000 Honda CB 1100 Honda CB 1100 EX Honda CB 250 Honda CB 250 F Hornet Honda CB 300 F Honda CB 400 Super Four Honda CB 500 F Honda CB 500 X Honda CB 600 F Hornet Honda CB 650 F Honda CB 650 R