Honda Navi Big Bore Piston Cylinder Kit

First Honda Navi Big Bore Alloy Kit.

As a lot of us long time Australian Navi enthusiast know, the only “Big Bore” kit available on the market was an existing 53mm piston on the market machined down then thicker gaskets used to make the piston work, then a hollowed out original cast iron cylinder was used to make the “Big Bore” kit complete.

Wild Boar Racing Cylinders is the World’s First Navi Alloy Racing Cylinder Kit designed and made in Australia to be a stand alone upgrade.

No expensive cam upgrades or the rest of the ongoing expensive mods, just a great foundation to build upon that will hugely increase performance,that has been trialed and tested here in Australia.

Our Wild Boar Honda Navi 125cc Big Bore Piston Cylinder Kit is the first true light weight high compression piston and cylinder kit on the market.

The original Navi cylinder is a heavy cast iron cylinder designed more for economy then performance, our WILD BOAR kit reduces weight while giving a huge increase in power and torque even for the stock standard Navi.