Suzuki’s original DR-Z 400s had a loyal following back in the day but were in need of an update, which is what they’ve just had. The new DR-Z4S, Dual Sport, and DR-Z4SM Supermoto models launched at EICMA, feature a new twin-spar steel frame with a separate, bolt-on aluminium subframe and aluminium swingarm, which houses a new 398cc single-cylinder engine. The electronics package includes power modes, switchable ABS, and a sophisticated traction-control system with several off-road modes.
The new Euro 5B compliant engine powers both models, offering linear power delivery with increased torque at lower RPMs, higher power output up to the rev limit and improved fuel efficiency. Compared to the previous DR-Z400 engine, nearly every aspect has been enhanced. This includes lightweight titanium intake valves and hollow, sodium-filled exhaust valves, along with updated cam profiles and pistons. Additionally, the new cylinder head features twin spark plugs, while new crankcases and a slipper clutch equipped with Suzuki’s Clutch Assist System have also been introduced.
New fuel injection and exhaust systems produce a broader spread of power across the rev range, with a linear throttle response and improved fuel economy. It all results in a peak power of 38PS at 8000rpm with maximum torque of 37Nm at 6500rpm while delivering a fuel consumption figure of more than 80mpg.
Electronic gizmos abound on both models as part of the Suzuki Intelligent Ride System. These include the Suzuki Drive Mode selector for adjustable torque/grip settings, switchable traction control modes, and a disengage-able ABS system, which differs between models. There’s also Suzuki’s easy-start system, which means the engine fires up with one press of the starter button, and there’s no need to pull the clutch lever when starting in neutral.
Suzuki also has a range of accessories available, which includes hand guards, a lower seat, and a rear carrier rack. Aftermarket accessories won’t be far behind. Pricing for the new DR-Z4S and DR-Z4SM will be confirmed shortly, with availability set for the summer.