TBparts - Roller Rocker Race Head V2 88cc Big Bore Kit
Z50 CRF50 XR50 & Pit bikes w/ Mikuni VM24 Carb

TB Roller Rocker Race Head V2 (52mm) Big bore kit. Highest Performance Race head on the market with full parts support in stock. We Recommend using premium fuel.

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.
• 52mm Aluminum Cylinder
• High performance race camshaft (for the V2 Race Head only)
• Head gasket kit
• Mikuni VM26 Carb kit

Recommended:

• 2 Size clutch tool - WHS-2274
• High volume oil pump - TBW0226-12V (TBW0225-6V for 1981 or before models)
• High speed 2mm drill bit - TRC-5526
• TBparts oil cooler for V2 heads - TBW9187
• Sta-bil fuel stabilizer - W-57-1129
  



Application:

• Z50 - 1988-present
• CRF50 - 1988-present
• XR50 - 1988-present

Kit Includes:

• TBW0750 - V2 Race head
• TBW0821 - V2 Head bolt kit
• TBW0752 - Camshaft V2
• TBW0754 - V2 Head cover set
• TBW0753 - Piston
• TBW0859 - Gasket Set
• TBW0156 - Cylinder
• TBW0301 - Cable
• TBW0433 - Intake Kit
• TBW0483 - Carburetor
• TBW0413 - Air filter



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.