Detailed Product Description 250CC DIRT BIKE XZT (16"/19")Engine 1) Engine Type: 150cc/200cc/250cc, 4-stroke, Single cylinder, Air cooled2) Bore & Stroke: 61x49.5mm(150cc) 69x53mm(200cc) 69x62.2mm(250cc)3) Starter: Kick or Kick+Electric (150cc) Kick+ Electric Start (200cc) Kick+ Electric Start (250cc) 4) lgnition: CDI 5) Compression Ratio: 8.6:1 (150cc) 9.2:1 (200cc) 9.0:1 (250cc) Drive Chain1) ...