2026Bimota KB4

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The 2026 Bimota KB4 is a naked sportbike built around Kawasaki's proven 1043cc inline-four (as used in the Ninja 1000SX), tuned to 140 HP and wrapped in Bimota's own trellis-and-billet-aluminum chassis. It keeps the classic 1970s Bimota silhouette while adding a modern electronics package, Brembo brakes and Öhlins-spec suspension, positioning it as a boutique alternative to mainstream naked sportbikes built on the same engine platform.

Capacity: 1043.0 ccm
Engine: In-line four, four-stroke
Gearbox: 6-speed
Wet weight: 194.0 kg
Seat height: 810 mm
Power: 140.5 HP (103.6 kW) @ 10000 RPM

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How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering95%

City riding35%

Daily riding30%

Touring25%

Two-up15%

Track95%

Best for: Built primarily for spirited canyon carving and track-day performance rather than commuting or long-distance travel.
Built for: A lightweight, boutique Italian-Japanese hybrid superbike that pairs exotic craftsmanship with razor-sharp handling and strong midrange power.
Not ideal for: It is not a good fit for beginners, taller comfort-seekers, or anyone wanting a practical daily or touring machine.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 810mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2026 Bimota KB4, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 1043.0 ccm
Power: 140.5 HP (103.6 kW) @ 10000 RPM
CO2 Emissions: 5 CO2 g/km
Torque: 111.0 Nm (11.3 kgf-m) @ 8000 RPM
Engine type: In-line four, four-stroke
Power/weight ratio: 0.7242 HP/kg (wet)
Bore x stroke: 77.0 x 56.0 mm
Compression: 11.8:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Valves per cylinder: 4
Lubrication system: Forced Lubrication, wet sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-disc

Performance

0-60 mph: 3.10 seconds
0-100 km/h (0-62 mph): 3.30 seconds

Dimensions & weight

Wheelbase: 1390 mm
Overall length: 2050 mm
Overall width: 774 mm
Overall height: 1150 mm
Seat height: 810 mm
Wet weight: 194.0 kg
Fuel capacity: 19.50 litres
Ground clearance: 140 mm
Oil capacity: 3.80 litres
Dry weight: Not on record - add it

Chassis & suspension

Frame: Front frame trellis made by Hi-resistance steel with Aluminum alloy plates billet machined
Front suspension: Öhlins front fork FG R and and T 43 NIX30
Rear suspension: Aluminum alloy Swingarm billet with Öhlins ttX 36
Front wheel travel: 130 mm
Rear wheel travel: 122 mm
Rake (fork angle): 24.0°
Trail: 101 mm