Compression Ratio: 15:1 Engine Type: 2-Stroke Piston Diameter: 49,96 mm Piston Size: Standard Size B Product Name: Piston Riding Style: Offroad Style: Big Bore Units: Each Compression Ratio: 0,584027777777778 Number Of Segments: 1 Net Weight G: 114.8 Cylinder Head Characteristics: domed Pin Dimensions: 12x8x40 Displacement: 65 Cast Or Forged: cast Bore Diameter: 49.96