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Takegawa SCUT Superhead bore kits for the XR100R CRF100F NSF100 bikes. From the high output Stage 1 125cc kit all the way through the all powerful 136cc Stage 3. Skirtless piston offers easy installation with no case boring or splitting. Can be installed in under two hours. The Takegawa Superhead allows ultimate fuel delivery through the largest valves available. Takegawa patented oil splash system is incorporated into the cylinder to provide added protection to the underside of the SCUT piston during startup and high RPM conditions
- Stage 1 and 2 heads come with 27mm/23mm intake and exhaust valves
- Stage 3 heads come with 28.5mm/23.5mm intake and exhaust valves
- all valves are 5mm stem diameter
- Stage 1 kits come with SX20 racing camshaft
- Stage 2 and Stage 3 125cc kits come with SX25 racing camshaft
- Stage 2 and Stage 3 136cc kits come with SX35 racing camshaft
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