TBParts - Roller Rocker Race Head V2 Kit for 88cc
XR70 & CRF70

Vital Information
On Sale $424.99
Part No TBW9102-XR-CRF70
Stock Level Check Stock

TB Roller Rocker Race Head V2 for 88cc & 108cc Stroker (52mm) bore kits.
Highest Performance Race head on the market with full parts support in stock.

Installation Note:
It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).

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

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
  • 52mm piston with rings, pin, & clips.
  • High performance race camshaft (for the Race Head only)
  • Head gasket kit.


  • 26mm Intake Port - Matches Intake Manifold Kit - TBW0433
  • High volume oil pump - TBW0226-12V
  • 2 size clutch tool - WHS-2274
  • Sta-bil fuel stabilizer - W-57-1109
  • TB 12 way rotating spacer 26mm - TBW1020


  • XR70
  • CRF70

Kit Includes:

  • TBW0750 - V2 Race head
  • TBW0755 - V2 Head bolt kit
  • TBW0752 - V2 Cam
  • TBW0754 - V2 Head cover set
  • TBW0753 - Piston
  • TBW0859 - Head gasket kit


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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