New FR30 kit is independently developed by Leichten. It is reliable, stable, quiet and economical. The FR30 middle battery system kit provides light traveling and leisure electric bicycles with a rated power of 250W and a powerful 80Nm torque. The battery adopts a drawer-type design that can be drawn out to replace or charge the battery. In addition to the self-use charging interface, the battery also has a USB mobile phone charging interface, which can be used as a mobile power source. The power-assisted riding range can reach to 80KM, meeting daily commuting needs.