Sevenstar is not only an Ebike manufacturer as people know; we are more like a light sport equipment provider now. Sevenstar is the first company to use our own Torque sensor system since 2009 in China Sevenstar have our own R&D department which could make your any new bike in only 2 weeks by CNC. Sevenstar have two states of art assemble lines which could assemble 8000 pieces per month. And, Sevenstar can do more for you.... Contact us and let us know your demand.