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TBParts - Roller Rocker Race Head V2 146cc Big Bore w/VM26 Carb Kit China 124cc & 140cc engines

Vital Information
Part No TBW9128
Stock Level 7 Left

TB Roller Rocker Race Head V2 146cc Big Bore w/VM26 Carb Kit
China 124cc & 140cc  engines

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 line
  • VM26 Carb Kit
  • High performance race camshaft (for the Race Head only)
  • Head gasket kit


  • Sta-bil fuel stabilizer - W-57-1109
  • Uni foam filter spray - W-82-1000

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


  • China 124cc & 140cc engines with a 13mm wrist pin
    and 78mm tall cylinder
  • GPX 125 and 140
  • Pitster Pro 140 
  • Piranha 125 and 140 

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 set
  • TBW0601 - Cylinder
  • TBW0301 - Throttle cable
  • TBW0433 - Intake kit
  • TBW0399 - VM26 Carb
  • TBW0413 - Air filter

(1 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.


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