Suzuki is finally joining the serious off-road marketplace with an all-new fuel-injected RMX450Z enduro racer. The bike is based on Suzuki's RM-Z450 motocrosser, with a significantly-reworked version of the Electronic Fuel Injection (EFI), 449cc, DOHC, four-valve, liquid-cooled, single-cylinder engine. A longer inlet tract, less radical cam profiles, wider gear ratios plus an electric starter are the main changes to the high-spec off-road weapon, all wrapped in the motocrosser's frame, suspension and bodywork.