33:T50f,

Looking to turn your KLX140 into the ultimate trail bike? Look no further than this 220cc complete upgrade kit!

Brand new big bore kit for Kawasaki KLX 140 2008-2025 and KLX 150 2008-2025 All Series (S – L – BF Series)

Contains everything needed to make great performance of your bike!

– Cylinder Head with big valve (34/29) include racing valve springs and misc parts

– Camshaft with roller rocker arm design include cam bearings, Increased low-end response faster

– Stroker Crankshaft longer +6mm from stock

– Ceramic Forged cylinder barrel with 68mm Forged Piston. Forged ceramic cylinder barrel is very durable for extreme condition

– Racing Carburetor with different jets and new intake carb and custom boot to the airbox

– Performance CDI

- Clutch Springs

- Throttle Cable Kit

PLEASE NOTE THIS KIT REQUIRES CASE BORING THE CRANKCASE LARGER TO ACCEPT THE LARGER CYLINDER - Professional installation is HIGHLY RECOMMENDED!

There are no installation instructions, if you are not familiar with building engines please consider having a professional install this kit.

34:T43f,Looking to turn your KLX140 into the ultimate trail bike? Look no further than this 220cc complete upgrade kit! Brand new big bore kit for Kawasaki KLX 140 2008-2025 and KLX 150 2008-2025 All Series (S – L – BF Series) Contains everything needed to make great performance of your bike! – Cylinder Head with big valve (34/29) include racing valve springs and misc parts – Camshaft with roller rocker arm design include cam bearings, Increased low-end response faster – Stroker Crankshaft longer +6mm from stock – Ceramic Forged cylinder barrel with 68mm Forged Piston. Forged ceramic cylinder barrel is very durable for extreme condition – Racing Carburetor with different jets and new intake carb and custom boot to the airbox – Performance CDI - Clutch Springs - Throttle Cable Kit PLEASE NOTE THIS KIT REQUIRES CASE BORING THE CRANKCASE LARGER TO ACCEPT THE LARGER CYLINDER - Professional installation is HIGHLY RECOMMENDED! There are no installation instructions, if you are not familiar with building engines please consider having a professional install this kit.36:[["KLX140",{"years":[2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008],"rideType":"Dirt Bikes"}]] 35:[["Kawasaki","$Q36"]]