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TBParts - Stroker kit 2 108cc
for Z50 CRF50 XR50 CRF70

Vital Information
Part No TBW0967
Stock Level 4 Left

TBparts 108cc Stroker kit 2 This is an affordable kit that will convert your
TB 88cc Race Head kit into a powerful open class 108cc engine

Key Features:

  • 51mm Crankshaft with NTN bearings
  • Crankcase and clutch cover gaskets
  • Head gasket kit
  • 26mm mikuni carb kit


  • High volume oil pump
  • Oil Cooler
  • Billet clutch hub

Exceeds OEM Standard equipment


  • Honda Z50 - 1988-1999
  • Honda XR50 - All Years
  • Honda CRF50 - All Years
  • CRF70 - All years

 Kit Includes:

  • TBW0319 - Crank
  • TBW0287 - Gasket
  • TBW0334 - Gasket
  • TBW0206 - Gasket
  • TBW0301 - Cable
  • TBW0316 - Intake Manifold
  • TBW0399 - Carb
  • TBW0413 - Air Filter

This kit requires engine disassemble and therefore, we highly recommend a professional technician install this kit. If you plan on doing it yourself, you will need to have a Clymer or Honda shop manual. Instructions do not come with the kits but the installation of the crankshaft is just like installing a stock Honda crankshaft.

Recommend purchasing the Upgrade Disk Kit available at TboltUSA . Additionally, we do not recommend the use of an inner rotor kit with this clutch (on a 108cc or larger engine) as it can lead to premature clutch failure due to extra fatigue placed on the clutch housing. Also, do not tighten the clutch nut with a hammer and screw driver - it must be torqued on. We offer a Clutch tool at TboltUSA See the TECH DATA Info section for additional information on our performance products and links to instructions for the top end and oil pump.

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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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