Motorcycle Piston Kits


Piston Technical Specifications
MaterialAC8A / 4032 / 2618 High-Strength Aluminum AlloyProcessPrecision Casting / Forging
Heat TreatmentT6 Solution & AgingSurface CoatingTin / Graphite / MoS₂ (optional)
Compression Ratio9.5:1 – 12.5:1Piston Height40 – 80 mm (depending on model)
Piston Diameter (Bore)38 – 100 mmPiston Pin Hole Diameter12 – 20 mm
Piston Pin Length40 – 70 mmRing Grooves2 compression + 1 oil
Ring Groove Width1.0 / 1.2 / 1.5 / 2.0 mmPiston Skirt ProfileBarrel / Oval / Tapered
Engine Displacement Range50cc – 250ccOperating Temperature Range-20°C ~ +250°C
Thermal Expansion Coef.≤ 18 × 10⁻⁶ /KHardness (HB)90 – 130
Quality CertificationISO 9001:2015Warranty12 months



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