Don't Skip Using an Electric Bike Torque Arm on Your Build
If you're building a high-power DIY e-bike, an electric bike torque arm is one of those small parts that actually keeps your motor from ripping itself out of the frame. It's easy to overlook because it looks like a simple, flat piece of metal, but it's doing a massive job every time you twist the throttle. If you've ever seen a hub motor axle spin inside a frame's dropouts and turn the motor wires into a twisted mess of copper and rubber, you know exactly why these things are non-negotiable. ...