170cc / 63mm Big Bore Kit w/ VM26 Carb Kit - All KLX140

TB Parts 170cc / 63mm Big Bore Kit w/ VM26 Carb Kit   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*) *Fitment Note: 2025+ KLX140s – MAY require case boring to fit. Our cylinder skirt is 65.95mm and SOME 2025+ cases are only 65.4mm wide. TB Parts 170cc Bore Kit with the our Mikuni VM26 performance carb kit. These parts work great together for an unmatched performance increase. Starting with the complete big bore kit you get a lightweight high compression piston that is 5mm over stock making close to 50% more power. Add the 6mm larger VM26 carburetor (that utilizes the stock air box) and the bike will not only start up and idle better but it also feeds the engine more air and fuel to make more power through the entire powerband. This is one of the best, if not the best kit you can run on your KLX140 to reliably wake it up without breaking th