170cc / 63mm Big Bore Kit - All KLX140 JTI Each shock is custom built

Each shock is custom built to rider specs

CNC Aerospace grade 6061 T-6 billet construction

NOTE: This is the only camshaft we offer that includes tappet adjusters

Custom made Mounting brackets for the BAC4000

170cc / 63mm Big Bore Kit - All KLX140 JTI Each shock is custom builtTB Parts 170cc 63mm Big Bore 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. This kit includes a lightweight high compression piston that is 5mm over stock making