Z125

Kawasaki Z125 Pro Big Bore Kits

Upgrade your Kawasaki Z125 Pro with big bore kits from Takegawa. The Z125 Pro shares its engine architecture with the Honda Grom and MSX125, making it compatible with Takegawa 143cc and 181cc bore-up kits for a direct bolt-on power increase.

Z125 Pro Big Bore Options — 143cc & 181cc

Takegawa offers both 143cc and 181cc big bore kits specifically for the Kawasaki Z125 Pro. The 143cc kit is a reliable, street-friendly upgrade. The 181cc kit delivers maximum performance for track and competition use. All kits include a bore-up cylinder, piston, rings, and gaskets.

Performance Cams & Engine Parts

Pair your Z125 Pro big bore with a Takegawa performance camshaft for optimized power across the RPM range. Also available: cam chain tensioners, head gaskets, and other Z125 Pro engine parts for complete performance builds. Fits Kawasaki Z125 Pro 2017+.