CT70

Honda CT70 Big Bore Kits

Upgrade your Honda CT70 with big bore kits from TB Parts. The CT70 Trail is a legendary Honda mini bike with a classic single-cylinder engine that has been a favorite for resto-mod and performance builds for decades. TB Parts bore-up kits are the most popular power upgrade.

CT70 Big Bore Kit Options

TB Parts offers big bore kits for the Honda CT70 Trail that include a bore-up cylinder, piston, rings, and gaskets. More displacement delivers noticeably more torque and power for trail riding and classic mini bike builds. Compatible with Honda CT70 and CT70H models.

Performance Cams & Engine Parts

Pair your CT70 big bore kit with a TB Parts performance camshaft for additional power across the rev range. Also available: cam chain tensioners, valve springs, and CT70 engine components. Contact Hard Racing at 704-799-2192 for help selecting the right parts for your CT70 build.