Fully revised, the DR-Z4SM’s engine complies with the latest emissions, sound, and fuel consumption regulations, while delivering the same proven, satisfying level of performance. New higher-lift camshafts with reduced overlap press upon new titanium intake valves and advanced-design hollow sodium-filled exhaust valves with higher rate springs to deliver precise valve timing that results in smooth and linear engine performance.

Now equipped with Electronic Fuel Injection, the DR-Z4SM’s engine is fed through an electronically controlled (Ride-by-Wire) throttle body with a 42 mm bore and a 10-hole injector that maximizes fuel atomization for better combustion efficiency and lower fuel consumption. The DR-Z4SM’s evolution to fuel injection significantly improves engine response, idle speed control and peak power output, while also contributing to easier starts.

The new slim exhaust system has large-diameter, stainless steel head- and mid-pipes, plus a double wall silencer design to reduce heat transfer to the rider or passenger. The left side body cover has a quick- release fastener on the new air cleaner box, retaining the popular, easy access to the air filter element.

New to a Suzuki SuperMoto model, the Suzuki Intelligent Ride System (S.I.R.S.) helps DR-Z4SM riders optimize performance characteristics to suit their riding style, their experience level, and the riding conditions. The S.I.R.S. suite includes the three-mode Suzuki Drive Mode Selector (SDMS), the four- mode Suzuki Traction Control System* (STCS) that includes a G (Gravel) mode for unpaved surfaces, the ABS** (Antilock Brake System) has a switchable ABS Rear OFF mode for off-road or closed-course use, and the Suzuki Easy Start system that automatically starts the engine with a momentary press of a button.

The DR-Z4SM builds upon the reliable chassis reputation of the prior generation DR-Z400SM with a new twin-spar frame and KYB-supplied suspension. The engine resides within the spars, furthering chassis rigidity while the direct connection the spars provide from the steering head to the swingarm pivot enhance the DR-Z4SM’s steering characteristics.

The new, adjustable KYB inverted front fork and rear suspension are easy to tune while the new, Dunlop SPORTMAX Q5A sportbike tires (17 in. front and rear) provide optimum traction on road with Supermotard track potential. A large 310 mm front brake rotor and dual piston caliper plus a 240mm rear brake disc and single piston caliper are connected to a compact, lightweight ABS unit to match stopping force with available traction.

The DR-Z4SM provides the rider an ergonomically sound and relaxed cockpit with new tapered aluminum handlebars with half-waffle grips, wide rider pegs with removable, vibration-damping rubber inserts, and a new seat with shape and foam optimized for comfort. The new compact, light-weight fuel tank retains prior DR-Z400SM capacity of 2.3 US gal. (8.7 L).

The DR-Z4SM’s new LCD instrument panel features a straightforward, legible display that supplies critical real-time operating information and reminds the rider of the S.I.R.S. systems settings. Popular features like twin trip meters and joined by a new fuel level indicator. All of the DR-Z4SM’s lighting is low-draw LED type, including the new bifunction LED headlight that incorporates both the high- and low- beam functions into one, bright projector module. The magneto (stator and rotor) have been redesigned to increase output efficiency to ensure adequate power for the fuel injection and electric start systems.

Minimalistic and sleek, the off-road inspired styling intentionally exposes key components that visually confirm that the DR-Z4SM is an extremely capable SuperMoto motorcycle. The bodywork’s emphasis on sharp, flat lines visually announce a new era in Suzuki’s SuperMoto bike design. Riders can choose either the Sky Gray bodywork or the bright Solid Special White No. 2 plastics that contrast well with the many blacked-out chassis components.

The DR-Z4SM is powered by a thoroughly updated 398cm3 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.

Like a GSX-R, the DR-Z4SM’s shim-under-bucket valve adjustment system has long service intervals.

New camshaft profiles have increased intake lift and optimized valve overlap, contributing to both improved engine performance and world-wide emissions compliance.

The valve spring rates have been increased to match the increased intake valve lift.

The DR-Z4SM’s cylinder head features Suzuki’s Dual Spark Technology, utilizing two iridium spark plugs, for heightened spark strength and longevity. This also improves combustion efficiency at low engine speeds, smoother power delivery, easier engine start-up, and a more consistent idle.

Optimization of the new piston’s ovality and skirt shape has achieved both a reduction in mechanical loss and smoother, quieter engine operation.

The Suzuki Composite Electrochemical Materials (SCEM) cylinder is durable and lightweight and provides superior heat transfer.

The combination of new piston and crankcase designs reduces mechanical loss by up to 20%. This contributes to smoother engine operation, increased power output right up to the rev limit, and improved fuel economy.

Carried over from the DR-Z400SM to the DR-Z4SM is the dry sump lubrication system, which contributes to a compact engine design that provides ample ground clearance and a low center of gravity.

The crankcase has been refined to reduce horsepower-robbing pumping loss and oil agitation.

Changes were made to the engine’s crankcase, cylinder head and other components for optimal mounting into the new, twin-spar frame. The engine covers were also redesigned for durability while presenting a modern appearance.

Now equipped with Electronic Fuel Injection, the engine is fed through an electronically controlled throttle body with a 42 mm bore and a 10-hole injector that maximizes fuel atomization for better combustion efficiency and lower fuel consumption

This new Ride-by-Wire intake system helps achieve a good balance between idle speed control and peak power output, while also contributing to emission standards compliance.

The new fuel injection system features easier starts, especially when the engine is cold, and continually monitors throttle position/engine speed and adjusts ignition timing to maintain efficient combustion.

By achieving an ideal fuel-air ratio, the engine provides good response as the rider opens the throttle.

Another benefit of the precise Ride-by-Wire operation is that it helps customize the engine’s output through the Suzuki Intelligent Ride System’s (S.I.R.S.) Suzuki Drive Mode Selector (SDMS) feature that allows the rider to tune the engine’s power delivery characteristics to the conditions and riding style.

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.

The new exhaust system features a double-wall silencer design that helps protect the rider’s legs from extreme heat, also contributing to the DR-Z4SM’s slim body profile.

The high-flow, large diameter head pipe, mid-section and exhaust silencer are constructed of stainless steel, which enhances style and appearance of quality.

The use of a PAIR (air supply) system to the exhaust helps the motorcycle achieve emissions compliance without affecting performance.

Simple electric starting via a lightweight starter motor with an automatic mechanical decompression system.

A larger, thermostatically controlled cooling fan mounted to the left radiator helps maintain a consistent operating temperature.

The magneto (stator and rotor) have been redesigned to increase power generation efficiency.

The 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.

The transmission’s output is managed by the Suzuki Clutch Assist System (SCAS). This system works like a slipper clutch by allowing a small amount of clutch slip under deceleration for smoother downshifts. The SCAS also works as an assist clutch, increasing plate pressure under acceleration, but always keeps the clutch lever’s pull light and precise.

- This large-diameter, wet, multi-plate clutch uses a precise cable-activated release, providing the rider with a light pull and a superb friction-point feel.

Riding on durable steel sprockets, a strong O-ring style drive chain contains lubrication pre-packed between the pins and rollers for quiet, reliable operation.

New to a Suzuki SuperMoto model, the advanced electronic systems of the Suzuki Intelligent Ride System (S.I.R.S.) help DR-Z4SM riders optimize performance characteristics to best suit their riding style, their level of experience, and riding conditions. This helps make the DR-Z4SM more predictable, and enjoyable during a spirited run on a paved road or commuting around town. Always ready to support the rider, S.I.R.S. always helps deliver a more exciting, confident, and fun riding experience.

- The DR-4SM’s S.I.R.S. suite includes the Suzuki Drive Mode Selector (SDMS), the Suzuki Traction Control System* (STCS), the ABS** (Antilock Brake System) with switchable Rear ABS OFF mode, and the Suzuki Easy Start system for accurate and convenient motorcycle operation.

Suzuki Drive Mode Selector (SDMS)

Delivering a sense of control and comfort, SDMS provides the DR-Z4SM rider with a choice of three different engine power output modes. Working in concert with the Traction Control System*, SDMS permits peak power in each mode while changing the nature of the power delivery.

These three modes (A, B, and C) provide the rider with a quick and effortless way to alter the DR-Z4SM’s power delivery characteristics to match his or her riding style or adjust to changing weather, road surface, or other conditions.

- Mode A (Active) provides the sharpest response as the throttle is opened. Tuned to deliver exciting acceleration and fully leverage the engine’s power, mode A is well suited for enjoying aggressive runs on good surfaces.

- Mode B (Basic) is for general, all-around riding, as it features a more linear curve with softer throttle response. The aim is to deliver a satisfying balance of settings that make a good fit for a broad range of riding styles and surface conditions, and to help control engine power in everyday riding situations.

- Mode C (Comfort) aims to prioritize comfort by offering the softer throttle response and more gentle torque characteristics. This setting is a good choice when riding on loose or otherwise slippery surfaces or when the rider desires a relaxing, comfortable ride.

Using the mode and select switches on the new, left-hand handlebar switch assembly, the rider can change SDMS modes while riding. The mode settings are clearly displayed on the LCD instrument panel.

Suzuki Traction Control System (STCS)*

The four-mode STCS on the DR-Z4SM lets the rider control the throttle with more confidence by limiting rear wheel spin in a variety of riding conditions.

STCS continuously monitors front and rear wheel speeds, throttle opening, engine speed, and transmission gear. It quickly reduces engine output when it detects wheel spin by retarding the ignition timing and limiting the throttle opening.

The rider can select one of four modes (1, 2, G, and OFF). The three active modes (1, 2, and G) differ in terms of rear wheel spin sensitivity.

- Mode 1 [TC1] is the lowest sensitivity – it allows a certain degree of rear wheel spin and is best suited for good road conditions.

- Mode 2 [TC2] is the highest sensitivity level – the system engages traction control sooner than Mode 1, helping to virtually eliminate wheel spin, and is well-suited for poor or slippery road conditions, like wet and cold surfaces.

- G (Gravel) [G Mode] mode was developed to provide good performance by retarding ignition timing and momentarily reducing the throttle opening while allowing a certain amount of rear wheel slip (when activated when riding on unpaved or closed course paved surfaces).

> In G mode the intervention timing is set slower than the system’s two standard modes, and the maximum level of intervention is set lower. This setting provides the right balance between preventing excessive wheel spin on slippery surfaces and minimizing power loss on surfaces with traction.

> In G mode the DR-Z4SM is easier to ride on loose surface conditions, with both flat and undulating terrain. More forgiving of the rider’s throttle action, G mode instills confidence in riders of all skill levels when riding with limited surface and rear tire traction.

> OFF disengages all traction control features – the rider has sole control of the engine’s throttle and any resulting rear wheel spin.

The STCS modes are displayed on the LCD instrument panel and can be changed on-the-fly, using the left handlebar switches. When the system is modulating power to prevent wheel spin, the TC icon on the instrument panel will illuminate and flash.

Antilock Brake System**

The DR-Z4SM is equipped with a compact, yet effective Bosch-supplied ABS control unit that adjusts the brakes’ stopping force to match the available traction.

The DR-Z4SM’s ABS system has a Rear ABS OFF mode that will deactivate the ABS function for rear wheel.

- The ABS setting is clearly visible on the LCD instrument panel and can be easily changed using the left handlebar switches.

Ride-by-Wire Electronic Throttle System

The electronic throttle system uses the capability of the DR-Z4SM’s new ECM to convert throttle grip movement and sensor input into instantaneous and precise throttle plate movement in the 42 mm throttle body.

This system also tunes throttle body action to best match each of the SDMS modes. The result is a controllable, linear power delivery that responds faithfully to the rider’s intentions, whether enjoying a sporty ride on a winding road or riding on a forest road.

The Suzuki Easy Start System

Used for the first time on an electric start Suzuki SuperMoto model, the Easy Start system allows the rider to easily start the engine with a single, momentary press of the starter button.

- There is no need to hold down the starter button until the engine starts.

- There is no need to pull in the clutch lever when the transmission is in neutral, and the starter motor automatically disengages the instant the engine starts.

The DR-Z4SM continues the precise, nimble handling, and easy maneuverability reputation of the prior generation DR-Z400SM. It builds upon this reputation with a new twin-spar frame and KYB-supplied suspension.

The engine resides in the center of the spars benefiting chassis rigidity while the direct connection the spars provide from the steering head to the swingarm pivot greatly enhance the DR-Z4SM’s handing characteristics.

The twin-spar frame is formed from steel pipe that makes it rigid, strong, and supple enough to manage rough surfaces. It also absorbs shocks to reduce their effects upon the rider, and ideal training for a very off-road capable dual sport motorcycle.

This trim frame combines cast components with thin chrome-moly steel tubes for exceptional torsional rigidity with minimal weight.

- The frame’s front down tube, and steering head gussets form the dry-sump engine’s oil tank.

The new, bolt-on aluminum sub-frame is comprised of cast and square tubing for low weight and excellent strength.

These essential frame and sub-frame attributes provide the DR-Z4SM good weight carrying capability while simplifying maintenance.

The new frame and sub-frame provide a similar, ergonomically-sound riding position as the outgoing DR- Z400SM.

- 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, and the seat height is slightly increased from 34.25 in. (870 mm) to 35.0 in. (890 mm) on the DR-Z4SM.

The new seat has an optimized width with carefully selected foam to improve comfort, plus an exceptionally durable seat cover

Light, strong and flexible to help damp vibration to the rider, the large new diameter tapered aluminum handlebars provide a good grip position.

- The handlebar grips were changed from a full waffle to a half-waffle design to better distribute pressure across the palms while making and makes the grips easier to hold and control.

New, wider rider footpegs provide good grip to the rider’s boots.

- The footpegs’ vibration damping rubber inserts can be removed for even better grip, which is helpful in slippery conditions.

The fuel tank is a new, flush lightweight design where the side covers (radiator shrouds) cover both sides (fuel capacity is 2.3 US gal. (8.7 L)).

Supplied by KYB with 10.2 in. (260 mm) of stroke, the new inverted cartridge-style fork has adjustable compression and rebound damping force for smooth performance on all types of roads.

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 fork yield rake and trail specifications of 26.5°/95 mm (3.74 in.), delivering a balance of nimble handling and straight-line performance.

Spoke-style 17-inch front and rear wheels with blacked-out or blue anodized aluminum rims are fitted with Dunlop SPORTMAX Q5A sportbike tires that provide superb on-road performance and optimal Supermotard track potential.

- Both front and rear tires use a silica compound, which provides both dry and wet grip, as well as excellent reinforcement for longer life.

- These performance street tires feature an internal construction and profile that is engineered exclusively for the DR-Z4SM.

- Front wheel rim 17 M/C x MT 3.50 with a 120/70R17M/C tire.

- Rear wheel rim 17 M/C x MT 4.50 with a 140/70R17M/C tire.

The aluminum under cover is standard equipment that help protects the bottom of the engine.

The front wheel uses a NISSIN-supplied, dual piston, sliding pin, axially mounted caliper that grasps a 310 mm (O.D.) stainless steel brake rotor.

The rear wheel uses an axially mounted, single piston caliper with a 240 mm brake rotor that is also constructed of stainless steel for good heat dissipation and durability.

The DR-Z4SM is fitted with axial mounted calipers because of their resistance to vibration when riding over rough terrain.

New to the DR-Z family of motorcycles is an Anti-lock Brake System (ABS)** that helps make sure the braking force matches the available traction at the tire.

- The ABS Control Unit is a compact, lightweight design.

The DR-Z4SM has a newly designed LCD instrument panel that is light and compact, with a straightforward, legible display. This panel not only supplies critical real-time operating status information, but also keeps the rider aware of the settings for the bike’s respective systems.

- The LCD readouts include a speedometer, odometer, dual trip meters, gear position indicator, voltmeter, SDMS mode, Traction Control mode, average and current (instant) fuel consumption readout, fuel level bar, and clock.

- Around the perimeter of the panel are LED illuminated icons that include a turn signal indicator, MIL (Malfunction Indicator Lamp) indicator, a master warning indicator, a low voltage indicator, coolant temperature warning light, ABS function indicator, neutral indicator light, ABS warning indicator, Traction Control indicator, and high beam indicator.

The DR-Z4SM has new handlebar switch assembles developed expressly for this model and its capabilities. Designed for an ease or operation ease and efficiency, this ergonomic switch layout frees the rider to concentrate on the road or trail ahead.

- The left handlebar switch layout makes selecting modes and changing settings for each of the advanced electronic rider assist systems simple and intuitive. Operating the MODE and UP/ DOWN switches, (which recognize long and short presses) makes personalizing the S.I.R.S. settings simple and quick.

- The right handlebar switch features a new, polyfunctional switch that incorporates the RUN and OFF functions and momentary press to activate the Suzuki Easy Start system.

The new bifunction LED headlight is a unique design that incorporates both the high- and low-beam functions into one, bright projector module. Light, compact and durable, this new headlight has low electrical draw and is set into the front cowl.

All of the DR-Z4SM’s lighting is new, low-draw LED type, including the turn signals (white lenses with amber illumination), the taillight, and license plate illumination light.

The magneto (stator and rotor) have been redesigned to increase power generation efficiency to ensure adequate power for the new fuel injection system and other updated electrical features.

The proven electric start system provides convenient operation and features a lightweight starter motor and a compact, maintenance-free battery.

The new DR-Z4SM marks a step forward in SuperMoto styling, with a new design that emphasizes the model’s agile performance and future direction.

- The bodywork smoothly fits together, creating a “linear connection” from front to rear, through a bold horizontal line the flows from the front fender through to the tail.

The DR-Z4SM’s new bodywork features Solid Special White No. 2 or Sky Gray bodywork with modern graphics.

- The “DR-Z” and “SM” decals on each side of the radiator shrouds are modern and subtle.

- Following the horizontal line along the shrouds, these decals feature a multicolor gradient below the lettering conveys the DR-Z4SM’s modern image.

- A stylized, embossed “Suzuki S” emblem is embossed in the new, numberplate-like front shroud.

The shape of new mirrors feature a parallelogram design that matches the DR-Z4SM’s styling while improving the rear view for the rider.

Suzuki Genuine Accessories provide riders a fun and practical way to customize and personalize their DR-Z4SM.

- These accessories include a handlebar-mounted DC power socket, a low-profile seat, front and rear frame sliders, cargo rack, front and rear brake disc guards, and more.

Suzuki 12-month limited warranty. Longer coverage periods with other benefits are available through Suzuki Extended Protection (SEP).

For more details, please visit www.suzukicycles.com.

Engine

398cc, 4-stroke, liquid-cooled, single cylinder, DOHC

Bore x Stroke

90.0 mm x 62.6 mm (3.5 in. x 2.54 in.)

Compression Ratio

11.1:1

Fuel System

Fuel injection, 42 mm throttle body with 10-hole injector

Starter

Electric

Lubrication

Semi-dry sump

Clutch

Wet multi-plate, SCAS-equipped

Transmission

5-speed constant mesh

Final Drive

Sealed O-ring type chain

Suspension Front

KYB-supplied, inverted, telescopic fork with coil spring, oil damped, and adjustable compression/rebound damping force 

Front Suspension Stroke

260mm (10.2 in.)

Suspension Rear

KYB-supplied, link type, coil spring, oil damped shock absorber, with adjustable spring preload and compression/rebound damping force

Rear Wheel Travel

277 mm (10.9 in.)

Rake / Trail

26.5°/95 mm (3.74 in.)

Brakes Front

Disc brake, single 310 mm diameter stainless steel rotor

Brakes Rear

Disc brake, single 240 mm diameter stainless steel rotor

Tires Front

120/70R17 M/C (58H), tube type

Tires Rear

140/70R17 M/C (66H), tube type

Fuel Tank Capacity

8.7 L (2.3 US gal.)

Color

Sky Gray (Q1T) -or- Solid Special White No. 2 (30H)

Ignition

Electronic ignition 

Spark Plug

Iridium type (x 2)

Headlight

Bifunction LED

Tail Light & Turn Signals

LED

Overall Length

2195 mm (86.4 in.)

Overall Width

885 mm (34.8 in.)

Overall Height

1190 mm (46.9 in.)

Wheelbase

1465 mm (57.7 in.)

Ground Clearance

260 mm (10.2 in.)

Seat Height

890 mm (35.0 in.)

Curb Weight

154 kg (340 lb.)

Warranty 

12-month unlimited mileage limited warranty.

Extension

Longer coverage periods with other benefits available through Suzuki Extended Protection (SEP).