... experience OEM 5.Ceramic Cylinder blockBrand name scootermFunctionfit for scooter,ATV,motorcycle Features1.Fine appearance,free of burrs, air ... .3. cylinder usedoverlapping curve in Cylinder hole is clear,with good performance of oil storage.4. Precise machining size, ... Precise processing dimensional accuracy and has a good match with piston.5.Competitive price ,promptly delivery6.Various models are ...