太阳能电动助力自行车现已开发出太阳能电动助力自行车．带高效单晶硅太阳能电池、前后加力的男式变速山地车及带非晶硅太阳电池的前加力女式轻便车．最高时速１８公里，不用脚踏．可行驶１．５小时。太阳能电动助力自行车... Solar powered bicycle has now developed a solar-powered bicycle. With efficient monocrystalline silicon solar cells, before and after the force of men’s variable speed mountain bike and with amorphous silicon solar cells before the force of women’s light vehicles. The maximum speed of 18 kilometers, do not pedal. Driving for 1.5 hours. Solar Powered Bicycle ...