2025 Suzuki DR-Z4SM
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2025 Suzuki DR-Z4SMBuilding on Suzuki's industry leading SuperMoto, the all-new 2025 DR-Z4SM is here. This motorcycle redefines SuperMoto performance, built for riders who crave agility and excitement on the street and track.An all-new twin-spar steel frame and aluminum subframe provide a lightweight, high-performance chassis. The redesigned 398cc engine, featuring electronic fuel injection and 42mm Ride-by-Wire throttle body delivers smooth, responsive power.Suzuki's Intelligent Ride System (S.I.R.S.) puts advanced features at your fingertips. With three-level Suzuki Drive Mode Selector (SDMS) and a four-mode Traction Control System, you can tailor the bike's performance to match your riding style and conditions. Switchable ABS provides added functionality, whether you're navigating city streets or carving up a racetrack.Features may include:EngineThe DR-Z4SM is powered by a thoroughly updated 398cc single-cylinder four-valve DOHC engine that delivers a smooth, controllable spread of torque from low RPM up through peak power. The redesigned cylinder head has optimized shapes for the intake port, intake valve boundary, and a smooth, flat combustion chamber that produces better combustion to provide consistent power under low loads with strong power output under heavier loads. The DOHC cylinder head contains a pair of lightweight titanium intake valves and a pair of hollow, sodium filled exhaust valves that help maximize combustion efficiency and performance.Every aspect of the new air cleaner box design was studied and updated, including its capacity and outlet shape, to improve intake air flow. The length of the inlet tube and the diameter of its mouth were designed to achieve balance between intake air sound and the engine’s power delivery to generate sharp throttle response and powerful low-speed torque. The left side body cover has a quick-release fastener, and swings open like a door, retaining the popular, easy access to the air filter element.TransmissionThe revised, compact, five-speed transmission utilizes a cable-operated clutch with a separate outer cover for simplified clutch maintenance.Most of the gears and shafts in the transmission were updated to reduce oil windage (drag) and to increase strength.ChassisSupplied by KYB, the new long stroke, inverted cartridge-style fork has adjustable compression and rebound damping force with 10.2 in. (260 mm) of travel for smooth performance on all types of on road and on track surfaces. The new frame and fork also update the fork rake and trail specifications for a balance of nimble handling and straight-line performance. The new, rear KYB shock absorber has 10.9 in. (277 mm) of rear wheel travel with spring preload plus both compression and rebound damping force adjustments, and connects to a new, lightweight aluminum swingarm through a progressive linkage system.The new frame and sub-frame provide a similar, ergonomically-sound riding position as the outgoing DR-Z400SM. To better suit on track riding, the new large diameter tapered aluminum handlebar’s grip position is set in the same height as the DR-Z400SM but are 0.78 in. (20 mm) farther from the rider, while the new, wider rider’s pegs are set at the same height but are 0.70 in. (18 mm) farther back. The DR-Z400SM’s seat height of 35.0 in. (890 mm) is retained on the DR-Z4SM.ElectricalDelivering a sense of control and comfort, Suzuki Drive Mode Selector (SDMS) provides the DR-Z4SM rider with a choice of three different engine power output characteristics (modes). Working in concert with the Traction Control System, SDMS permits peak power in each mode while changing the nature of the power delivery.