How many gears does the 2026 Triumph Viper 400 have?

Name: 2026 Triumph Viper 400
Brand: Triumph

The 2026 Triumph Viper 400 has a Gearbox of 6 speed.

Triumph Viper 400 - 2026 Specifications and Reviews

The 2026 Triumph Viper 400 is a nimble middleweight naked bike designed for riders seeking accessible performance and everyday practicality. Its 398cc engine delivers 39.5 horsepower with responsive mid-range torque, while the lightweight steel frame and responsive suspension geometry make it equally at home in city commuting or spirited weekend riding. Known for its refined handling and user-friendly character, the Viper 400 bridges the gap between learner-friendly and genuinely engaging motorcycling.

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2026

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Engine and Transmission Specifications
Gearbox	6 speed
Clutch	Wet, multi-plate, slip & assist
Final Drive	X-ring chain
Exhaust System	Stainless twin-skin header system with stainless steel silencer
Max Torque	27.7 ft lb @ 6,500 rpm
Max Power	39.5 HP (40PS) @ 8,000 RPM
Compression Ratio	12:1
Capacity	398.15 cc

Physical measures and capacities
Wet Weight	375 lb (170kg)
Fuel Capacity	3.43 US gal (13 litres)
Wheelbase	54.21 in (1377 mm)
Seat Height	31.10 in (790 mm)
Overall Height	42.68 (1084mm)
Overall Width	32.05 in (814 mm)

Triumph Viper 400 dimensions and frame
Trail	4.02 in (102 mm)
Rake	24.6 º
Rear Brakes	230mm fixed disc, floating caliper, ABS
Front Brakes	300mm fixed disc, four-piston radial caliper, ABS
Rear Suspension	Gas monoshock RSU with external reservoir and pre-load adjustment. 130mm wheel travel
Front Suspension	43mm upside down Big Piston forks. 140mm wheel travel
Rear Tyre	150/60 R17
Front Tyre	110/70 R17
Frame	Hybrid spine/perimeter, tubular steel, bolt-on rear subframe
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

39.5 hp

Peak Power

5.2s

0-60 mph

Best For

Track70%

City80%

Cornering88%

Daily Riding78%

Touring45%

Passenger40%

Rider Profile

Best For	Well suited to newer riders and those upgrading from smaller machines who want a confidence-inspiring but still engaging package.
Purpose	Built as a nimble, sporty street naked/roadster for spirited commuting, weekend twisties, and learning cornering technique.
Rider Fit	The low 790mm seat height and light 170kg wet weight make it accessible to shorter or less physically strong riders.
Character	A light, flickable single-cylinder machine with premium suspension and brake components that reward smooth, precise inputs over outright power.
Not Ideal For	Not the right choice for riders seeking high-speed touring comfort, two-up long distance travel, or any off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.