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TBParts - 132cc 55mm Big Bore Kit
for Honda CRF110 2013-Present

Vital Information
Part No TBW9138
Stock Level 4 Left

This 132cc big bore kit is a great introductory performance upgrade for your CRF110.  This bolt-on upgrade kit will give you a lot more power, and a bit higher compression, for a very reasonable price. This is an ideal option if you're looking for a little boost, or you just need a new cylinder, piston, and rings to rebuild your engine.

Key Features:

  • All aluminum cylinder and piston for better his dissipation
  • Bolt-on kit, no boring or other parts required for swap
  • New cylinder has port in it now for the oil temp sensor that the new EFI engines require. A plug (bolt and crush washer) will be included for years without the temp sensor.
NOTE: 2 Base gaskets included:
  1. Use thicker base gasket with the stock valves
  2. Use the thinner base gasket if installing the TBW0888 big valve kit in your head


  • Honda CRF110 - 2013-present
Kit Includes:
  • TBW0891 - 55mm Cylinder
  • TBW0892 - 55mm Piston & rings with 13mm Wrist Pin
  • TBW0893 - 55mm Gasket Set

HONDA MONKEY GROM CRF125 and CRF110 2019 - Present fuel injected models
ECU will require a flash/tune to prevent a lean condition and possible damage to your engine.
cameronjonesracing.com and dynamicperformancene.com
provides this service and can also adjust the tune based on your other modifications.

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