Updated!! 132cc 55mm Big Bore Kit - Honda CRF110 - TBW9138 pilot jet Our oversized valves are constructed

Our oversized valves are constructed out of EV8 stainless steel to provide superior strength and longevity over the factory valves

Hawaii and International Orders

CRF50 XR50 CRF70 XR70 Z50

44mm Skirt OD & 14

Piston Ring Set - TBW1009

Updated!! 132cc 55mm Big Bore Kit - Honda CRF110 - TBW9138 pilot jet Our oversized valves are constructedHonda CRF110 55mm 132cc Big Bore Kit Fits: 2013 Current Honda CRF110F Larger bore and piston increases low end torque and overall power within the power band. *Please keep in mind that 2019+ EFI models will require a fuel controller like the aRacer that we sell or an ECU flash from CJR in order to use this kit. Replacement Parts: 132cc Cylinder TBW0891 Piston Kit TBW0892 Gasket Kit TBW0893 Piston Ring Set TBW1009