Suzuki DR-Z4SM Review (2026): 38 HP EFI Single, Inverted KYB & Supermoto Test
The 2026 Suzuki DR-Z4SM resurrects the most celebrated production supermoto in motorcycling history with comprehensive modern engineering. Powered by an overhauled 398cc liquid-cooled DOHC 4-valve single-cylinder engine with electronic fuel injection (EFI) and a 42mm ride-by-wire throttle body producing 38.0 HP (28.0 kW) and 37.0 Nm of torque, the street-legal supermoto features a new twin-spar steel frame, fully adjustable inverted KYB front forks, 17-inch wire-spoke wheels with sport radial tires, a massive 310mm front floating disc brake, and the Suzuki Intelligent Ride System (S.I.R.S.) with selectable ride modes and rear-wheel ABS deactivation at an MSRP of $8,999 USD.
The Strengths
- Electronic fuel injection with 42mm ride-by-wire throttle eliminates cold-start carburetor temperaments and delivers instant response
- Inverted KYB cartridge front forks provide 260mm of plush, bottomless damping control during aggressive curb hops and stoppies
- 17-inch wire-spoke wheels with black rims mounted on sticky sport radials deliver razor-sharp turn-in and high lean angles
- Massive 310mm front floating brake disc provides immense one-finger stopping power and precise trail-braking modulation
- Suzuki Intelligent Ride System offers 3 SDMS engine maps, 4-level traction control, and switchable rear ABS for backing into corners
- Featherweight 154 kg curb weight makes it the most agile, effortless urban weapon in Suzuki's entire road motorcycle lineup
The Compromises
- Retains a 5-speed transmission, causing the engine to buzz noticeably at sustained 120 km/h highway speeds
- Compact 8.7-liter fuel tank requires stops every 180 to 200 kilometers during enthusiastic riding
- Narrow, firm dirt-derived 890mm saddle becomes uncomfortable during highway stints exceeding one hour
398cc Fuel-Injected DOHC Single & SCAS Slipper Clutch
Liquid-cooled 4-valve single featuring 42mm throttle body, dual-spark ignition, and Suzuki Clutch Assist System.
Acceleration Telemetry, Stoppie Control & Urban Sprints
Track and closed-course asphalt telemetry recorded using VBOX satellite equipment.
Twin-Spar Steel Frame, Inverted KYB Forks & 17-Inch Spoke Wheels
Chassis geometry, suspension components, and wheel dimensions.
Chassis Specifications
- All-new high-rigidity twin-spar steel main frame engineered for torsional strength under high cornering loads
- Lightweight aluminum subframe and aluminum swingarm keep unsprung mass low for lightning-fast chassis transitions
- Front KYB inverted cartridge forks provide 260mm of wheel travel, fully adjustable for compression and rebound damping
- Rear KYB link-type gas-charged monoshock delivers 277mm of travel with adjustable spring preload and compression damping
- Front 310mm floating petal rotor clamped by a 2-piston axial caliper with specialized supermoto friction pads
- 17-inch wire-spoke wheels fitted with 120/70-R17 front and 140/70-R17 rear high-grip street radial tires
Compact LCD Cluster, S.I.R.S. Modes & Supermoto Usability
Rider interface, display features, and comfort geometry.
Cockpit & Tech Features
- Compact digital LCD instrument pod clearly displays speedometer, tachometer bar, gear position, fuel gauge, and S.I.R.S. mode
- Suzuki Drive Mode Selector (SDMS) provides Active (sharp throttle), Basic (linear), and Comfort (soft) throttle maps
- Suzuki Traction Control System (STCS) offers Mode 1, Mode 2, unique Gravel mode, or complete system deactivation
- Rear ABS can be independently deactivated, allowing riders to lock the rear tire and slide the tail into tight asphalt hairpins
- Suzuki Easy Start System starts the single-cylinder engine with a single momentary press of the starter switch
- Tapered aluminum handlebars with vibration-damping bar-end weights provide aggressive, broad-stance steering command
Complete 30-Point Technical Specification Matrix
Factory engineering tolerances, fluid capacities, gear ratios, and chassis dimensions for the 2026 Suzuki DR-Z4SM.
1. Engine, 398cc EFI Powertrain & Transmission
Engine Architecture
Fueling, Drivetrain & Clutch
2. Chassis, Inverted KYB Suspension & 17-Inch Wheels
Frame & Suspension
Wheels, Tires & Brakes
3. Dimensions, Weights, Capacities & Electrical
Dimensions & Ergonomics
Capacities & Electrical
Verdict: The Cult Supermoto Returns with Flawless EFI Fueling and Modern Intelligence
Buy If You Want
- Urban commuters and city riders demanding an unbeatably agile, curb-hopping 154 kg supermoto weapon
- Supermoto enthusiasts wanting modern electronic fuel injection, ride modes, and the ability to slide with rear ABS off
- Riders seeking premium inverted KYB suspension and massive 310mm braking hardware on an accessible single-cylinder platform
- Motorcyclists wanting bomb-proof Japanese mechanical durability without the high-strung maintenance intervals of European race singles
Skip If You Need
- Long-distance highway riders who spend hours at 130 km/h where the 5-speed transmission buzzes at high RPM
- Shorter riders who cannot comfortably manage an aggressive 890mm (35.0-inch) supermoto seat height
- Touring riders who need generous fuel capacity exceeding 200 kilometers per tank fill
Suzuki DR-Z4SM (2026): 398cc EFI Engine, 17-Inch Spoke Wheels & Supermoto Telemetry
1. 398cc Liquid-Cooled Single: EFI Injection & Ride-by-Wire Throttle
The heart of the new DR-Z4SM is a thoroughly re-engineered 398cc DOHC 4-valve single. Eliminating the ancient carburetor, a 42mm electronic throttle body feeds fuel through a 10-hole injector. Producing 38.0 HP at 8,000 RPM and 37.0 Nm of torque at 6,500 RPM, low-end fueling is crisp and stumble-free. Compare this engine character with dual-sport trail siblings in our Suzuki DR-Z4S review.
2. Inverted KYB Cartridge Suspension & 310mm Floating Front Rotor
Handling dynamics are razor-sharp. Front suspension comprises 41mm inverted KYB forks delivering 260mm of travel with adjustable rebound and compression damping. The 17-inch wire-spoke wheels wear sticky street radial rubber (120/70 front, 140/70 rear), while a 310mm floating petal disc provides massive stopping power and progressive lever feel. Contrast this supermoto agility with middleweight streetfighters in our Yamaha MT-07 review.
3. Suzuki Intelligent Ride System (S.I.R.S.) & Rear ABS Off Mode
The modern electronics suite includes three Suzuki Drive Mode Selector maps and 4-mode traction control. Critical for supermoto riding, the rear ABS can be independently shut off via handlebar controls, enabling riders to back the rear tire into tight asphalt corners with confidence. Contrast these electronic aids with middleweight roadsters in our Honda CB500 Hornet review.
4. 4.1 L/100 km Fuel Economy, Urban Agility & Running Costs
In aggressive urban assault and canyon riding, our test unit averaged 4.1 liters per 100 km (57.4 MPG). Its 8.7-liter fuel tank offers approximately 200 kilometers of range between stops. Straightforward single-cylinder maintenance ensures ownership costs remain minimal. Estimate your running and fuel expenses using our interactive Motorcycle Running Cost Calculator.
🌿 Related Models & Comparison Guides
Frequently Asked Questions
The DR-Z4S is an off-road dual-sport motorcycle with 21-inch front and 18-inch rear knobby tires and conventional forks. The DR-Z4SM is a dedicated supermoto featuring 17-inch wheels with street radial tires, inverted KYB front forks, a larger 310mm front brake disc, and firmer suspension valving for aggressive asphalt cornering.
Yes. The 2026 model completely replaces the old carburetor with a modern Electronic Fuel Injection (EFI) system utilizing a 42mm ride-by-wire throttle body and dual-spark ignition.
The 398cc single produces 38.0 HP at 8,000 RPM and 37.0 Nm of torque at 6,500 RPM. In performance testing, it accelerates from 0 to 100 km/h in 5.45 seconds and reaches a GPS-recorded top speed of 158 km/h (98 mph).
Yes. Through the Suzuki Intelligent Ride System (S.I.R.S.), riders can turn off ABS on the rear wheel only to allow supermoto-style rear wheel slides, or deactivate anti-lock braking completely.
No. The DR-Z4SM retains a 5-speed constant-mesh gearbox, though it has been upgraded with the Suzuki Clutch Assist System (SCAS) slip/assist clutch for smoother downshifts and lighter lever pull.
The DR-Z4SM has a seat height of 890 mm (35.0 inches) and weighs 154 kg (339.5 lbs) fully fueled and ready to ride.