TB V2 RACE KIT (124-140CC)



SKU: TBW9126 Category:


TB Roller Rocker Race Head V2 for 146cc bore kits.
Highest Performance Race head on the market with full parts support in stock.

Meets or Exceeds OEM Specifications.

Key Features:

  • Roller Rocker Arms exactly like the V2 head for the KLX110
  • 28.5mm intake Valve
  • 23.5mm Exhaust Valve
  • 5mm Valve Stem
  • 23mm Exhaust port
  • Matching High Compression Piston
  • Head kits include all hardware
  • 57mm piston with rings, pin, & clips.
  • 57mm all aluminum cylinder with steel liner
  • High performance race camshaft (for the Race Head only)
  • Head gasket kit


  • Sta-bil fuel stabilizer - W-57-1109
  • 26mm Intake - TBW0433

See the Performance Info section for additional information on our performance parts.

OD of cylinder skirt is 59mm


  • China 124cc-140cc engines with a 13mm wrist pin
Kit Includes:
  • TBW0751 - V2 Race head
  • TBW0821 - V2 Head bolt kit
  • TBW0752 - Cam
  • TBW1441 - V2 Head cover set
  • TBW0414 - Cam sprocket
  • TBW0823 - Piston
  • TBW0862 - Top end gasket kit
  • TBW0601 - Cylinder

Additional information

Weight 6 kg


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