... heat dissipation 4.nearly 28 years experience 5.Ceramic Cylinder blockBrand name scootermFunctionfit for scooter,ATV,motorcycle Features1.Fine ... 2.the material of the cylinder block are good metallographic.3. cylinder usedoverlapping curve in Cylinder hole is clear,with good ... (Except China), North America, Central & South America ceramic motorcycle engine cylinder block DERBI SENDA L/C (2004)