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Two Brothers - TTR50 S-Stage Bore Kit
With stock head and 53mm piston supplied in this kit, engine displacement will be 107cc. Featuring this products, cylinder sleeve is made of integrally molded aluminum which is treated by ceramic-coated for the sake of reduction of friction losses. Thus, piston clearance becomes narrow so that high durability and high output can be accomplished. As for piston, Molybdenum coating is applied for improving first-time use adaptability. Furthermore, tufftride surface treatment on cam achieves high sliding performance.
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