TBPARTS - 178CC BIG BORE KIT, RACE HEAD V2, AND INTAKE MANIFOLD KIT Z125

This is the largest bore kit available from TBParts. WIth a 67mm piston and V2 race head, this will transform your Z125 into a powerhouse! Key features:   Lightweight high compression 67mm piston Aluminum cylinder for better heat dissipation and further weight reduction from stock. V2 roller rocker race head provides much larger valves and aggressive cam with roller rocker arms.   Application:   Kawasaki Z125 Note: Case boring requiredMUST BE USED WITH AN AFTERMARKET FUEL CONTROLLER TO PREVENT A LEAN CONDITION AND DAMAGE TO YOUR ENGINEWE RECOMMEND PREMIUM FUEL