天剑250(天剑王)详细参数型号(型式)・Code JYM250-2 总长×总宽×总高・L×W×H 2025mm×760mm×1065mm座席高・Seat height 805mm轴距・Wheelbase --------1360mm最低离地距离・Minimum ground clearance --------175mm整备质量・Wet(with oil and a full fuel tank) --------152kg最高车速・Maximum speed --------123km/h最小转弯半径・Minimum turning radius --------2.4m发动机种类・Engine type --------空冷、4冲程・Air cooled, 4-stroke气缸数・Cylinder arrangement -------单缸・Single cylinder总排气量・Displacement --------249cm3缸径×行程・Bore ＆ stroke -------74.0mm×58.0mm 压缩比・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)启动方式・Starting system type --------电启动・Electric starter机油容量・Engine oil capacity --------1.5L油箱容量・Fuel tank capacity --------19.2L化油器型式/燃料供给・Carburetor Type/Fuel supply --------FI [燃料喷射方式・Fuel Injection] 点火方式・Ignition system type ---------T.C.I蓄电池容量・Battery voltage/capacity -------12V 6Ah 离合器形式・Clutch type ---------湿式多片手操纵・Wet, multiple-disc coil spring变速机形式・Transmission type --------常啮式前进5档返回・Constant mesh 5-speed变速比・Gear ratio ---------2.571/1.684/1.273/1.040/0.852车架形式・Frame type ---------双摇篮式・Double cradle轮胎规格(前/后)・Tire size(Front/Rear) --------100/80-17M/C 52S / 130/70-17M/C 62S制动装置形式(前/后)・Brake type(Front/Rear) ---------单盘式 / 鼓式・Single disc brake / Drum brake悬架方式(前/后)・Suspension type(Front/Rear) ---------伸缩式/连杆式单臂・Telescopic / Bottom link swing arm前灯、前位灯・Headlight、Auxiliary light --------12V、35W/35w×1、12V、5w×1