143cc Top End Gaskets for 58-60mm Bore Kits - TBW0306 - KLX & DRZ 110 Z125 -TBW0306 TBW0301 Fits '88-11 Honda CRF XR

Fits '88-11 Honda CRF XR Z 50 and 70

This is our most affordable 67mm bore kit for the YX/GPX/Zongchen engines

you will need one of those - do not tighten the nut with a hammer and screw driver - it must be torqued on

This is very easily done with a small Dremel tool

The internal reservoir uses a floating piston that better separates the oil from the pressurized nitrogen

143cc Top End Gaskets for 58-60mm Bore Kits - TBW0306 - KLX & DRZ 110 Z125 -TBW0306 TBW0301 Fits '88-11 Honda CRF XRReplacement top end gasket kit for TB parts 134cc (58mm) and 143cc (60mm) bore kits. Now includes the top end O ring kit and exhaust gasket! (May fit other brand kits