Parts and upgrades for the Stomp Haywire, the 21kW (28 HP) full-size e-moto running 21 inch front and 18 inch rear wheels, a 74V 50Ah removable battery, and a 520 chain final drive. The Haywire uses a traditional motocross chassis layout, so this collection is built from our universal E-MX catalog: grips, bars, tires and tubes, chains, handguards, displays, throttles and maintenance gear. Fitment is listed on every product, so check the fitment tab before ordering.