Total height: 93mmHeight without sleeve: 62.5mmSleeve outer diameter: 54.5mmDiagonal distance between holes: 68mmPiston pin: 12mmMuffler mounting hole spacing: 54mm / M6x1Applicable to:Transfer from 50cc to 65cc in following models:HONDA:Honda Dio Fit 50 AIR 2T 1990-1993Honda Dio G/GP 50 AIR 2T 1989..