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Rejoice! Curtis's NEW 144 Volt Controller is NOW AVAILABLE!

Our electric drive systems are sold as a kit that includes an HPEVS motor, Curtis controller, Spyglass display. The Spyglass (model 840) displays rpm, controller/motor temperature, volts, and amps. Each Curtis controller is pre-programmed for your unique application. These systems do not require an additional inverter and use a DC battery voltage input.

Looking identical to the AC 9 / AC 15 family of motors, the AC 12 has different internal windings that optimizes torque. Starting off as a hi-performance golf cart motor, the AC 12 is offered with many different mounting and shaft styles that will fit a variety of popular transaxles and differentials such as the Graziano and Spicer rear ends as well as splined shafts. The wide variety of Curtis controllers has enabled the AC 12 to  become an ideal motorcycle power plant with a range between 17 hp at 48 volts to 65 hp at 144 volts and speeds from 1800 to over 6000 rpm. Offering lower horsepower, but higher torque, the AC-12 is primarily used for golf carts, go-karts, motorcycles, boats, agricultural, and industrial vehicles.


If you have any questions regarding your application of an AC motor kit, don't hesitate to call (707) 578-7973 between 9AM-5PM PST to speak with a specialist. Our specialists are knowledgeable EV enthusiasts who can help you determine the correct kit to suit your needs.  We strive to offer the lowest prices and the absolute best service. Do we know these drives? Just ask the factory! We are authorized dealers for HPEVS and Curtis Instruments. You can find out even more about us here: Why Buy from Thunderstruck?


We want you to be happy with your kit, including it's shipment, therefore if you require international shipping or a special shipping method we ask that you please e-mail us at connect@thunderstruck-ev.com after placing your order to provide us any additional details.