I use a Pedego electric cruiser bike. Very comfortable to ride. You have the option to pedal, use electric assist or electric power only. Excellent range on electric. The only downside is that it is a little heavy to lift onto the bike rack unless you remove the battery first (very easy to do- turn the key, unplug and slide off the rack behind the seat). They are available at dealers or online.
2012 Winnebago View 24JChesterton, Indiana