Suzuki Unveils All-New DR-Z4S and DR-Z4SM at EICMA: 398cc EFI Single and KYB Legs

Part of Throttle Times’ live coverage of EICMA 2026.

Suzuki has finally replaced the venerable DR-Z400 after twenty-four continuous years in production, unveiling the completely re-engineered 2027 DR-Z4S dual-sport and DR-Z4SM supermoto at the EICMA 2026 show in Milan. The updated Euro 5+ single-cylinder architecture delivers 38 hp (28 kW) at 8,000 rpm and 37 Nm of torque at 6,500 rpm, ditching the archaic Mikuni carburetor for a high-pressure 42mm electronic fuel injection system, ride-by-wire throttle management, and multi-stage traction control featuring a dedicated off-road Gravel mode.

For dual-sport riders across Europe who watched the old carbureted machine disappear from dealership floors under Euro 3 regulations, this is the resurrection of an icon. Suzuki did not simply slap an oxygen sensor onto the old cases; they redesigned the top end with titanium intake valves, dropped wet weights to 151 kg for the DR-Z4S and 154 kg for the DR-Z4SM, and engineered a modern twin-spar steel backbone supported by fully adjustable KYB inverted cartridge forks.

The 398cc DOHC Single: Fuel Injection and Mechanical Refinement

The updated powerplant retains the proven 398cc displacement with a 90.0 mm bore and 62.6 mm stroke, but internal changes alter its operational character. Suzuki engineers implemented hollow sodium-filled exhaust valves, high-lift camshaft profiles, and a flat-top piston operating inside a Suzuki Composite Electrochemical Material (SCEM) plated cylinder. A dual-spark cylinder head and 10-hole fuel injector ensure complete combustion, meeting strict European noise and tailpipe emissions without throttling midrange response.

Power transfers through a five-speed transmission fitted with a Suzuki Clutch Assist System (SCAS), functioning as a slipper-assist clutch that reduces lever pull effort while preventing rear-wheel chatter during aggressive trail downshifts. Electronic integration via the Suzuki Intelligent Ride System (S.I.R.S.) provides three throttle delivery maps (SDMS Modes A, B, and C) and four traction control interventions (Mode 1, Mode 2, Gravel mode, and Off). On the dirt-focused DR-Z4S, the dual-channel Bosch ABS system can be completely disengaged at both the front and rear wheels—a critical capability missing from most modern light-heavyweight competitors.

“The mission was clear: modernize the legendary DR-Z reliability and simplicity without blunting its mechanical grit,” stated Suzuki’s off-road development team in Milan. “Retaining genuine dual-wheel ABS disengagement and mechanical ergonomics was a non-negotiable requirement for European green lanes and alpine trails.”

Chassis Architecture and Real-World Trail Geometry

The perimeter frame abandons the old single-cradle configuration for a rigid twin-spar steel design complemented by a lightweight aluminum subframe. Ground clearance on the DR-Z4S measures a massive 300 mm, riding on an inverted 43mm KYB cartridge fork with 280 mm of front wheel travel and a link-type KYB rear shock offering 296 mm of stroke. Both ends feature full compression and rebound damping adjustment.

The supermoto sibling, the DR-Z4SM, optimizes the geometry for mountain passes and urban tarmac. It lowers travel to 260 mm front and 277 mm rear, drops ground clearance to 275 mm, and swaps the 21-inch front and 18-inch rear spoked hoops for 17-inch wire wheels shod in sticky Dunlop Sportmax Q5A rubber (120/70-R17 front, 140/70-R17 rear). Stopping duties on the SM upgrade to an oversized 310 mm semi-floating front disc gripped by a dual-piston caliper.

The Rider’s Trade-Off: Five Speeds and Fuel Range

The obvious compromise facing long-distance adventure riders is Suzuki’s decision to retain a five-speed gearbox rather than engineering an all-new six-speed casing. While internal ratios have been slightly widened, sustaining 120 km/h on European autoroutes will keep the 398cc thumper spinning firmly in its upper rev registers. Suzuki argues that five wider gears keep internal crankcase mass compact and bulletproof, but riders tackling connecting highway miles between trails will feel the buzz.

The second trade-off lies in fuel capacity. At 8.7 litres, the steel fuel cell prioritizes a narrow knee-grip and low center of gravity over cross-country range. At an estimated consumption of roughly 3.5 l/100 km, riders can expect approximately 220 km before finding a pump. For technical trail work and B-road carving, the narrow ergonomics are unmatched; for desert navigation, aftermarket long-range tanks will be required on day one.

European Market Positioning and Availability

European deliveries are scheduled to commence in spring 2027, with formal homologation pricing expected between €7,400 and €7,900 across key continental markets. The DR-Z4S arrives directly into a middleweight trail arena crowded by the Hero Xpulse 450 and the lightweight Yamaha Ténéré 4 Concept, while the roadster side of Suzuki’s showroom is balanced by the newly unveiled Suzuki SV-7S. For purists demanding Japanese build quality, low maintenance intervals, and real off-road hardware, Hamamatsu has finally answered the call.

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Official source: https://www.eicma.it/en/news/suzuki-dr-z4s-and-dr-z4sm-revealed-at-eicma-2026/

Reporting via: bikesales.com.au