The 195-pound FMX is packed with innovative features. Suspension components are premium Sachs and Marzocchi units that look to provide plenty of travel, and it rolls on 18-inch trials tires to reduce environmental impact (and improve grip). But it's the motive power, a DC motor, that sets these silent dirtbikes apart. The 48-volt motor is juiced by a lithium-polymer battery pack that Modena says will give 30-180 minutes of run time, depending on usage. Power is measured in kilowatts instead of horses but is equivalent to around 20 hp. More impressive is the prodigious torque, 23 ft.-lb,. which is close to that of a Honda CRF250X. Speed is governed to 40 mph.