What's the difference between a motorbike and a powered bike

[rhinochopig]

Prompted by KTMs electric Enduro. Given you can buy and ride electric bikes without a license, when does an electric bike become a motorbike?

[black-k1]

Summary of the rules here:

http://www.50cycles.com/info_legal.shtml

[rhinochopig]

black-k1 said:

Summary of the rules here:

http://www.50cycles.com/info_legal.shtml

Ta