Provides 25 A at idle and 40 A continuously above 2800 rpm, Unique narrow rotor and stator fit into Softail/Dyna/FLT primary cases as used by most custom builders and the voltage regulator bolts on the stock location without any frame modifications, Custom-designed flanged seal spacer provides maximum support for the rotor, Voltage regulator output is calibrated to 14.25 V from idle on up, Ideal for fuel-injected engines and bikes with overdrive-type transmissions