I actually live in San Francisco & I do not commute that far usually. If I do, I will be driving my car. However, there is a group people I know who want to challenge each other. However, some of those have got the electric scooters such as small Currie, Schwin, Xtreme and the bigger Vespa style type,without pedals. Therefore, to make it fair we agreed to run with throttle only for those who use electric bikes. Like I said before, considered it as an unofficial contest for range on a single charge. The only rule is the total weight limit (rider + bike + motor + battery) cannot be over 300lbs (136 kg) regardless electric bike or scooter. The gross weight must included the rider because no one want to break the spokes on the wheels and to be fair to each other in terms of the EV classification.