Spyke Supertorque Starter 1.4KW POL for Harley Big Twin 90-93 Spyke Super Torque Starters for Big Twins will give you 46% more cranking torque than stock There is no need to buy a bigger battery since modern technology is used and a very little amp draw is required There is more than enough torque for any bike with this intelligent gear reduction design New starter, not rebuilt Easy installation