DIRT BIKE PARTS PARAMETER
  Bore&stroke : 60X57mm 　 　 　
Cylinder capacity : 160ml 　 　 　
Compression ratio: 10.0:1 　 　 　
Power/torque: MORE THAN 17HP/9500+/-500r/min 　
Maximum torque: MORE THAN 11N.m/5500+/-500r/min 　
Mini fuel consumption: LESS THAN354g/KW.h 　 　 　 　
Valve gap(mm): 0.05+/-0.02mm 　 　
Fuel mark: above NO.90 GB484-89 　
Engine oil mark : SAE API 15W/40-SF 　 　
Oil consumption : 8g/KW.h 　 　 　
Transmission ratio : 　 　 　 　
Elementary: 3.722(18/67) 　 　 　
First gear: 3.272(11/36) Second gear: 1.937(16/31)
Third gear: 1.350(20/27) Forth gear : 1.043(23/24)
Spark plug size : A7TC 　 　 　
Spark plug gap: 0.6-0.7 　 　 　
Ignition method: CDI 　 　 　
Clutch model : multi-plate manual clutch 　
Air filter model : sponge air filter 　 　
Lubricating system: pressure splash 　 　
Engine oil capacity: 1.1L 　 　 　
Start method: kick start ( start any gear) 　
SIZE: 　 435X285X235mm 　 　
N.W: 　 19+/-1Kg