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TBParts - 143cc Bore Kit, V2 Head, 26mm Carb
KLX110 & 110L 2010-UP

Vital Information
Part No TBW9191
Stock Level In Stock
Choose Options

This is our latest complete kit to turn your KLX110 into an absolute beast! The addition of roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. The exhaust valve is now stainless as well (21-4N material). This all adds up to a cylinder head that puts out a professional level of performance yet is still affordable for the privateer rider. We top off the V2 roller head with a VM26 mm performance carb kit that is easy to tune and works great with this bore kit. These are high quality parts and require 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 having a professional technician install this kit or, at a minimum, 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 Specifications


  • TBW0473 cam is stronger through the low and mid range with a little less on the very top.
  • TBW0577 cam is a little stronger on the very top with less through the low and mid range.

Key Features:

  • Roller rockers, 30mm intake valve, 24.5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed). Now with Aluminum Rocker Arms
  • All aluminum ceramic plated 60mm cylinder
  • Lightweight High compression 60mm piston with rings, pin, & clips (Select Cast or Forged option below)
  • Head gasket kit, includes the cylinder head o-ring set and an exhaust gasket.
  • Genuine Mikuni VM 26mm Performance Carb
  • Race Head V2 Intake Kit - Jet kit with 3 different sizes for varying conditions and exhausts (Stock size is a #19 with extra jets sizes of 155, 165 & 175)

  • KLX110 and KLX110L - 2010-Present

Kit Includes:

  • TBW0459 - V2 roller rocker head
  • TBW0473 OR TBW0577 - Cam
  • TBW1390 - Cast piston kit (Optional TBW1579 forged piston kit below)
  • TBW0306 - Gasket
  • TBW0378 - Cylinder
  • TBW0305 - Gasket
  • TBW0399 - Carb
  • TBW0477 - Filter
  • TBW0321 - Throttle cable
  • TBW0362 - Intake manifold kit
  • TBW0645 - Cam sprocket

NOTE: To make this engine a 155cc displacement we also offer TBparts 55mm stroker crank, part number TBW0700.

Available Options:

Cam Choice:

Piston Choice:

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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!

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