Piston (B) 12Mm Stage6 R/T / Sport Pro / Racing 70

47mm piston Stage6 Piston 47.6mm (B), 12mm piston pin Stage6 70cc R/T / Sport Pro MKII / Racing MKII, replacement piston for Stage6 R/T 70cc Sport Pro / Racing MK2 cylinder kits. Replacing pistons If you notice that the compression and therefore the performance of your engine is decreasing, you should replace the old piston with a new one. This piston is a spare part for the Stage6 cylinder, available in several sizes (A, B, C); the differences in size are minimal (0.01 mm), so you should either choose the same size as the original piston or one size smaller or larger. Details Stage6 pistons Piston size B Diameter / Bore: 47,6mm 70cc cylinder Including 12mm piston pin, piston ring and circlips