| 摘要 |
The utility model discloses an improved motorcycle cylinder kit that includes a cylinder block and a cylinder mounted within the cylinder block wherein the improvement is characterized by a partially skirted cylinder having a skirt that extends downwardly from the bottom edge of the block. The skirt has a curved circumferential end that defines at least a pair of arcuated incision which promotes piston's stability and prevents engine shaking even on higher rpm. The incision also enables oil to flow in and out of the cylinder walls for better lubrication. |
