Before the UBCO2x2 we had the Stealth from Oz. Rwd only - but masses of power. Good suspension, and generally an impressive drivetrain with Maguira brakes and a very intuitive 9 speed gearbox...even if it does feel weird to pedal at 68 km/h . The Factory support is good - and for fun not much comes close. The B52 is the most powerful thing on two wheels with an electric motor, it comes with a soft start option for us mere mortals, but flick it into full and youll be going from 0-80kmph in 2 seconds!