Extreme Wheel K6 Max Electric BikeK6 Max with EVE 40PL Cells (20% increased range) has just arrived! A Brand New Ride The Extreme Wheel (Formerly known as the Extreme Bull) keeps getting better with the release of the K6. It's the first of its kind with a unique form factor inspired by sitting scooters but with a far more relaxed riding position and lower center of gravity. Combined with the extreme power this makes the Extreme Bull the perfect scooter for mobbing around town! Our new