This is our series motor we use for kit #1 & #2. It's made by D&D motor systems #ES-15A, and it's rated at ten horse-power continuous and fourty HP peak at 72 VDC. This motor is reversable, weighs 62 lbs., and measures 6.7 " dia. x 12.28 " long. We offer this motor separate for $775 + shipping.