New Stiffer SIMBB Frame and Bigger Battery

New Stiffer SIMBB Frame and Bigger Battery

The new SIMBB 29R electric bike frame just passed the rigorous Gates Belt Drive test for stiffness. The new frame is 38% stiffer than required by Gates and Rohloff Speed Hub to use the Gates belt drive with Rohloff. The stiffness test is done to insure the belt does...