In a world of readily available carbon-frame bikes with 12-speed cassettes and compact cranks that allow you to spin up your ...

Mount this 8-pound drive unit/battery pack/rotor-gear/throttle package to a compatible two-wheeler and you ... Beyond turning ...

With the aftermarket Bimotal Elevate EBike Motor System, you can throttle up to 20 miles per hour. (Certain exclusions apply.