Race Head Replacement - Head w/ Valve Kit Only - TBW0385 4V and 5 coils

and 5 coils

Any bore kit for the Z125 must be used with an aftermarket fuel controller to prevent a lean condition and damage to your engine

Anodized Black Billet Head Cover Set

Fits KX65 Front Hubs - Must be used with correct caliper adapter

Used on the KLX110 with stock head

Race Head Replacement - Head w/ Valve Kit Only - TBW0385 4V and 5 coilsThis kit is for replacement on the TB Parts bore kits we sell. This DOES NOT work with stock piston. Must use a TB Parts (or similar) piston with proper valve reliefs. Cam NOT included. Race Head w large valves (25mm intake & 22mm exhaust) and better flow for increased performance. Bigger cooling fins. Includes all necessary parts and comes assembled