TBParts - Race Head V2 and Kits
GPX Pitster YX Piranha SSR

Vital Information
Part No TBW9017-GPX
Stock Level In Stock
Choose Options

TB Race Head V2 for YX/GPX/Piranha 150cc and 160cc ENGINES

Tested to work great with the new Pitster Pro 155cc "Z" & ZS 155cc

The V2 is the new Roller rocker type Race head

Exceeds OEM Specifications.

Same spec as the more expensive Takegawa +R head shown in this section
(Now with Aluminum Rocker Arms)


  • 30mm Intake Valve
  • 24.5mm Exhaust Valve, stainless steel
  • 5mm valve stems


Upgrade carb kits include Performance intake Please select forward OR Rear Facing intake to suit your needs


170cc or 184cc includes 64mm Ceramic cylinder

Kit Includes:

  • Complete head w/ Cam

This kit can be combined with big bore cylinder & piston kits also carb kits see selectors below
Carb selections include Carb , Air filter and Cable to run with your PitBike CR Type throttle  

Current big bore selection provides you with a piston kit to match your current big bore kit

Big bore choice lets you select a new Big Bore Kit with Piston kit Cylinder and Gasket set to go with the Race head V2
(Engine size selection is very important so we get you the proper cylinder)

For proper valve clearance ONLY run TB60mm , TB64mm , TB67mm or other Pistons with proper valve reliefs
Stock Piston NOT recommended unless machined and custom clearance checked by a Pro

*67mm requires Case Bore*

NO COVERS INCLUDED - MUST RUN KLX or YX covers (ZS or HO Pitster Pro Covers DONT FIT)

Available Options:

Big Bore Choice:

Cam Choice:

Carb Choice:


De-Comp Option:

Engine size:

Intake option:

Piston Choice:


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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