... down ,Rr centerCompression ratio9.0:1Transmissionchainbore×stroke(mm)76 x 55 mmBrakeDisc / discidle speed (r/min)1500DIMENSIONSDisplacement(ml) ... 249L×W×H(mm)2030 x 709.5 x 1127mmIgnition patternCDISeat height(mm)810Variable speed5-SpeedGround clearance ... 250CC 4-valve water cooling engine,KT30 carburetor,Racing muffler,tank protetor,Fr disc&Rr disc,alloy ...