170cc/63mm Big Bore Kit - Cast/Cast - All KLX140 tbw0506 Depending on the vehicle

Depending on the vehicle

Deletes the OEM Jitter fiber and steel plate

The Pit Bike”Chubby” is a short muffler design that features increased volume which adds power and makes an awesome sound

Please select lever length from drop down before adding to cart

Once lined up exactly

170cc/63mm Big Bore Kit - Cast/Cast - All KLX140 tbw0506 Depending on the vehicle170cc or 63mm Big Bore Kit High Performance Cast Cylinder and Cast Piston Fitment: Kawasaki KLX140 (2008 2020) Kawasaki KLX140G (2017 2020) Kawasaki KLX140L (2008 2020) Kawasaki KLX140R (2021 Present) Kawasaki KLX140RF (2021 Present) Kawasaki KLX140RL (2021 Present) New Cast cylinder Wrist Pin Rings Clips and Gaskets and 63mm Cast piston Re jetting of the carb is needed after installing this kit. We strongly suggest an aftermarket exhaust with any