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TBParts - 143cc Big Bore Kit
DRZ110 - KLX110 - Z125

Vital Information
Part No TBW0986
Stock Level In Stock

TB 143cc Big Bore Kit

Fit all years 2002 to present

143cc Big Bore Performance Kit (60mm)

´╗┐Key Features:

  • NEW Ceramic coated all aluminum cylinder (no steel sleeve)
  • High compression domed 60mm piston with rings, pin, & clips
  • NEW Head gasket kit - Now includes the cylinder head o-ring set and an exhaust gasket.

The all aluminum ceramic coated cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction, improves sealing, and runs cooler which results in longer engine life. This new cylinder along with a complete head gasket kit and domed piston set this kit apart from other similarly priced 143 kits on the market. Affordable and will make your KLX110 or DRZ110 a lot more fun to ride! High quality parts and requires no machining to the cases or other modifications - bolt on and go!

There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend purchasing the shop manual for your bike available in TECH DATA or from your local Kawasaki or Suzuki dealer. The parts are installed in the same manner as the OEM parts.

Exceeds OEM Standard equipment specification.


  • Kawasaki KLX110 and KLX110L 2002-Present
  • Suzuki DRZ110 2003-2006
  • Kawasaki Z125 PRO 

Note: Z125PRO application
Must be used with an aftermarket fuel controller to prevent a lean condition and damage to your engine.

Kit Includes:

  • TBW0378 Cylinder
  • TBW0377 Piston Kit
  • TBW0306 Gasket
  • TBW0305 Gasket

(2 Reviews)

Since 2004, every purchase from TBolt USA includes access to technical support from our staff of experts and our online Pit Bike Technical Info Database!

We have all necessary support parts on hand.

Most orders ship same, or next business day, unless otherwise noted above.