I have an electric powered bicycle, I've had it a couple of years. It has a 250W 3-phase hub motor. As stated previously it really is an electric assist, its not a lot of use up hills but it does help, on the flat it manages 20mph without too much effort (I tweaked the speedlimiter). It came with a lithium ion battery back which isn't particularly bulky or anywhere near as heavy as SLA types. The bike itself is much heavier than a conventional bicycle but there is no noticeable drag with the motor switche= d off. Overall I am very happy with it even though I do live in a hilly area. It is a Synergie Avanti if anyone wants to gargoyle it. The only real annoyance is that the lights don't work with the motor off. Cheers James --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .