replacement bike brake

Responsive stopping power backed by instant electronic safety. Restore absolute braking confidence and crisp stopping response with the Official Happyrun Brake Lever Replacement. Engineered strictly to handle the high speeds and heavy payloads of modern electric bikes, this heavy-duty aluminum lever features an integrated electronic motor-cutoff switch. The moment you pull the lever, it instantly kills motor power—preventing accidental acceleration and dramatically shortening your stopping distances.