Full reveal of the 2026 Honda CB400 Super Four: 399cc 4-cylinder engine (-5.4 kg), E-Clutch, Pro-Link rear suspension, A2 compliance, and estimated European price.
The Legend Returns: The New 2026 Honda CB400 Super Four Features 4 Cylinders, E-Clutch Transmission, and an Unbeatable Price
The CB400 Super Four name officially returns to dominate the middleweight naked scene. Honda has revived the legend of its iconic roadster, designing its 399 cc inline four-cylinder engine from the ground up, integrating the revolutionary automated Honda E-Clutch transmission, and modernizing a chassis architecture historically tied to the past.
The headline figure generating excitement across the web is the official price announced for the Japanese domestic market: just 998,800 Yen (approximately €5,400 at current exchange rates). It stands as a competitive entry price for a motorcycle featuring such refined engineering.
Express Technical Specifications
Engine Architecture: 399 cc, DOHC inline 4-cylinder
Clutch Technology: Honda E-Clutch with full manual override support
Engine Weight Savings: -5.4 kg (-11.9 lbs) on the engine block alone
Chassis & Suspension: 41 mm KYB SFF-BP inverted front fork / Rear Pro-Link single shock
Electronics Suite: 5.0-inch TFT display, Throttle-By-Wire, 5 Riding Modes, HSTC Traction Control
Estimated Italian Market Price (Euro 5+): €7,200 – €7,800 (A2 license compatible variant)
Secrets of the 4-Cylinder Engine: -5.4 kg Weight Drop and High-RPM Sound
Honda engineers modernized the 399 cc DOHC engine, moving past the complex architecture of the previous HYPER VTEC Revo system to deliver a fuller torque curve across low and mid-range revs.
Engine Weight Reduction: The updated engine weighs 5.4 kg less than the previous generation. This weight reduction lowers the center of gravity and increases flickability during rapid directional changes.
Tuned Air Intake Runners: The airbox incorporates four intake ducts featuring varying lengths and diameters. This design differentiates intake sound frequencies, producing a rich induction note under hard acceleration.
Stainless Steel Exhaust System: The 4-into-1 exhaust headers feed into a polished silencer, with internal chambers tuned to highlight the high-revving four-cylinder exhaust tone.
E-Clutch Automated Transmission: City Riding and Lean-Angle Shifting
The CB400 Super Four incorporates an electronics package combining Throttle-By-Wire with the Honda E-Clutch automated system.
Stall-Free Urban Riding: Electric actuators manage clutch operation automatically. Riders can stop and launch in gear using only the throttle and brakes, with zero risk of stalling the engine.
Auto-Blipping Downshifts: Under heavy braking, the engine control unit automatically blips the throttle to match revs, preventing rear-wheel chatter.
Instant Manual Override: Pulling the handlebar clutch lever at any time temporarily overrides the system, returning the clutch to full manual mechanical operation.
Chassis Revolution: Bidding Farewell to Dual Rear Shocks
This generation marks a structural shift, replacing the classic dual rear shock layout with a modern sportbike setup:
Pro-Link Monoshock: Features a single rear shock paired with progressive Pro-Link linkage and a cast aluminum swingarm, improving rear traction and corner-entry stability.
KYB Inverted Fork: The front end is fitted with 41 mm KYB SFF-BP inverted cartridge forks, providing front-end support under heavy braking.
NISSIN Radial Brakes: Dual 296 mm floating front discs clamped by 4-piston radial-mount calipers, backed by a dual-channel ABS unit.
Tester's Note (Crazywheels): CB400 Super Four vs. CBR400R
"While its fully faired sibling—the CBR400R Four—targets track days with low clip-on handlebars, the CB400 Super Four stands as an all-around street choice. Dropping the dual rear shocks resolves the main dynamic limitation of the previous model.
With over 5 kg shed from the engine, this naked bike promises to be as nimble in traffic as an urban twin-cylinder machine (like the Yamaha MT-03 or KTM Duke 390), while retaining the character, smoothness, and high-rpm scream of a true Honda inline-four."
Connectivity, European Debut, and Estimated Pricing
The cockpit features a 5.0-inch color TFT display with Honda RoadSync connectivity (turn-by-turn navigation and call management) and a USB Type-C charging port. The styling pays tribute to its heritage via a split LED taillight, echoing the classic 1990s CB400 design.
The official European launch—complete with Euro 5+ emissions compliance and a 35 kW (48 HP) restrictor option for A2 license holders—is expected at EICMA, with showroom availability following in early 2027. Factoring in shipping, import duties, and VAT, the estimated Italian market retail price is projected between €7,200 and €7,800.