CJR HD Valve Spring Set - CRF110 & CRF125 tbw0419 *Please keep in mind that

*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

Mikuni VM26 Carb/Kit and Race Cam

Below that video is the one for the 02-09 KLX110

combustion chamber shape

138cc Takegawa Super Head +R

CJR HD Valve Spring Set - CRF110 & CRF125 tbw0419 *Please keep in mind thatCJR HD Valve Spring Set CRF110 & CRF125F FB Fits 2013 Current Honda CRF110F CRF125F FB upgraded valve springs for OEM cylinder head. When running OEM or aftermarket camshafts, we find the weak OEM valve springs hit a limit at 10,300rpm depending on camshaft option. These springs are a great upgrade for even a stock camshaft and even better upgrade when paired with an aftermarket camshaft. This HD Valve spring kit will support RPM up to 12,000RPM