See my Cyclone 250watt 24volt Electric bike (kit) compared to my modified Wisper Works 905e Electric bike with normal and then 22mph off road mode. You can see the different types of system at work, one through the gears and the other a hub motor with restricted and unrestricted modes.

trek rear tire

trek rear tire
a very short vid.. the taste of the super car summer to come in London. thanks to all the other local spotters around Kensington for your vids, keep up the good work.
Day 6 Comfort Bicycle Owner and Rider (Video: Business Wire)
Wheelmen highwheels in Petersham MA parade