Attentionplain (SM) connectors,Line order:Red wire: + positiveBlack wire: - NegativeWhite wire: speed signal wiringCommon problem:1. The built-in line sequence of the throttle is not the same.2. The connector is not connected tightly.Please feel free to contact me if you can't use it normally.Type: 20X Twist ThrottleVoltage: 12V, 24V, 36V, 48V, 52V, 60V, 72VLine length: 180cm(SM)Plug: 3-pin connectorWeight: about 350 gramsMounting: RightUses: electric scooters, electric bicycles, electric bicycles, electric motorcycles