Safety Tethered Kill Switch | Surron LBX | Ultra Bee | Talaria | E Ride ProDirtyBike Racing Kill Switch Made to withstand the rigors of racing, this AMA compliant stop switch is a must for competition DirtyBike offers two different kill switches. While both adhere to AMA rules for racing electric motorbikes, one works with your existing key and the other replaces your existing key switch. For everyday riding, the existing key option is recommended. If you are competing, the key replacement is a more robust option. Available