Off road riding isn't about top speed. It's about power delivery and where the power is. Bottom end, mid-range, top end. These bikes cant compare to a modern 450 4-stroke. I'm a motocrosser (the baddest sport on the planet by the way)though so I'm sure Joe shmoe might have fun on one of these electric bikes
what a load of bollocks!.
electric vehicles offer much better ways to deliver power where and when you want it. you can even just program your power curve straight in!- no need to change sprockets or gears or even engines.
lithium polymer cells are superior to gas engines. electric motors and controllers are superior to IC.
its the affordability and recharge thats going to make it tough- plus the gas companies ever present.