By carrying the best billet in the industry Mammoth Choppers has decided to leave the belt drive business to the pro’s and has partnered up with Evil Engineering to introduce an all new, top quality performance belt drive. Evil’s 2” Billet Aluminum Bobber Style Belt Drive is built with the patented HOT (Helical Offset Tooth) set-up to handle your high performance motor. The HOT set-up can handle more horsepower by design than the same size straight tooth while still offering all the reduced belt drive associated noise. HT stands for High Torque… Seriously High Torque! This EVIL design is built to withstand high torque Harley/Custom engines and are packaged with an ultra performance clutch to match. Our unique clutch design allows for increased capacity with less spring pressure and better heat dissipation. Our primary offers the same kick ass 7” clutch used in our 4” HT counterpart. The Bobber Style is available polished. Bottom Line – Stronger, Quieter, Lighter, Better – Now That’s Mammoth quality! Proudly Made in the USA!