Home » BBR 170cc Big Bore Kit - All KLX140
BBR 170cc Big Bore Kit - All KLX140 - Factory Minibikes
BBR 170cc Big Bore Kit - All KLX140 - Factory Minibikes
BBR

BBR 170cc Big Bore Kit - All KLX140

In stock
$ 189.95 USD
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)
(Approx. cylinder skirt size is 64.9mm and approx. size of the 2025 case is 65.4mm so fitment should not be an issue with this BBR kit versus the TB kit that will not fit the 2025 models.)

KLX140 Big Bore Kit - 170cc

High quality bore kit that shows substantial power gains throughout the RPM range. 63mm piston. 10.5:1 compression ratio allows use of premium pump gas. Complete kit includes: cylinder, piston, ring set, pin, clips and gaskets.


  • Brand new high quality BBR aluminum cylinder
  • 10.5:1 compression ratio
  • 63mm piston
  • Includes cylinder, piston, pin, rings, and gaskets

"We've been testing this kit for the last 3 months on our BBR KLX140 Concept Bike. This is flat out the single best mod you can do to your KLX140 motor." - Duane Brown


BBR General Jetting Guidelines Chart

Stock KLX140 - 58.0mm bore, 54.4mm stroke

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