Frenkit Rear Caliper Seal and Piston Kit NISSIN 629046 for Honda Frenkit Frenkit 629046: rear caliper seal and piston kit. See if it fits your bike. Honda CR 125 Honda CR 250 R Honda CR 500 R Honda CRM 250 Honda XR 250 R Honda XR 400 R Honda XR 600 R Honda XR 650 L Honda XR 650 R