天劍250（天劍王）詳細引數型號（型式）·Code JYM250-2 總長*總寬*總高·L*W*H 2025mm*760mm*1065mm座席高·Seat height 805mm軸距·Wheelbase --------1360mm最低離地距離·Minimum ground clearance --------175mm整備質量·Wet(with oil and a full fuel tank) --------152kg最高車速·Maximum speed --------123km/h最小轉彎半徑·Minimum turning radius --------2.4m發動機種類·Engine type --------空冷、4衝程·Air cooled, 4-stroke氣缸數·Cylinder arrangement -------單缸·Single cylinder總排氣量·Displacement --------249cm3缸徑*行程·Bore & stroke -------74.0mm*58.0mm 壓縮比·Compression ratio -------9.80:1最高功率·Maximum horse power -------15.4kW(7500r/min)最大扭矩·Maximum torque --------19.7Nm(6500r/min)啟動方式·Starting system type --------電啟動·Electric starter機油容量·Engine oil capacity --------1.5L油箱容量·Fuel tank capacity --------19.2L化油器型式/燃料供給·Carburetor Type/Fuel supply --------FI [燃料噴射方式·Fuel Injection] 點火方式·Ignition system type ---------T.C.I蓄電池容量·Battery voltage/capacity -------12V 6Ah 離合器形式·Clutch type ---------溼式多片手操縱·Wet, multiple-disc coil spring變速機形式·Transmission type --------常齧式前進5檔返回·Constant mesh 5-speed變速比·Gear ratio ---------2.571/1.684/1.273/1.040/0.852車架形式·Frame type ---------雙搖籃式·Double cradle輪胎規格（前/後）·Tire size(Front/Rear) --------100/80-17M/C 52S / 130/70-17M/C 62S制動裝置形式（前/後）·Brake type(Front/Rear) ---------單盤式 / 鼓式·Single disc brake / Drum brake懸架方式（前/後）·Suspension type(Front/Rear) ---------伸縮式/連桿式單臂·Telescopic / Bottom link swing arm前燈、前位燈·Headlight、Auxiliary light --------12V、35W/35w*1、12V、5w*1
天劍250（天劍王）詳細引數型號（型式）·Code JYM250-2 總長*總寬*總高·L*W*H 2025mm*760mm*1065mm座席高·Seat height 805mm軸距·Wheelbase --------1360mm最低離地距離·Minimum ground clearance --------175mm整備質量·Wet(with oil and a full fuel tank) --------152kg最高車速·Maximum speed --------123km/h最小轉彎半徑·Minimum turning radius --------2.4m發動機種類·Engine type --------空冷、4衝程·Air cooled, 4-stroke氣缸數·Cylinder arrangement -------單缸·Single cylinder總排氣量·Displacement --------249cm3缸徑*行程·Bore & stroke -------74.0mm*58.0mm 壓縮比·Compression ratio -------9.80:1最高功率·Maximum horse power -------15.4kW(7500r/min)最大扭矩·Maximum torque --------19.7Nm(6500r/min)啟動方式·Starting system type --------電啟動·Electric starter機油容量·Engine oil capacity --------1.5L油箱容量·Fuel tank capacity --------19.2L化油器型式/燃料供給·Carburetor Type/Fuel supply --------FI [燃料噴射方式·Fuel Injection] 點火方式·Ignition system type ---------T.C.I蓄電池容量·Battery voltage/capacity -------12V 6Ah 離合器形式·Clutch type ---------溼式多片手操縱·Wet, multiple-disc coil spring變速機形式·Transmission type --------常齧式前進5檔返回·Constant mesh 5-speed變速比·Gear ratio ---------2.571/1.684/1.273/1.040/0.852車架形式·Frame type ---------雙搖籃式·Double cradle輪胎規格（前/後）·Tire size(Front/Rear) --------100/80-17M/C 52S / 130/70-17M/C 62S制動裝置形式（前/後）·Brake type(Front/Rear) ---------單盤式 / 鼓式·Single disc brake / Drum brake懸架方式（前/後）·Suspension type(Front/Rear) ---------伸縮式/連桿式單臂·Telescopic / Bottom link swing arm前燈、前位燈·Headlight、Auxiliary light --------12V、35W/35w*1、12V、5w*1