At the heart of the 2021 Yamaha Niken GT naked motorcycle, Yamaha relies on a 847 cc (51.7 cu in) liquid-cooled in-line three, four-stroke powerplant. In factory specification, peak output is rated at 113.5 HP (82.8 kW) at 10,000 rpm while maximum torque reaches 87.5 Nm (64.5 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 134 HP per liter and a 1,500 rpm working window between peak torque (8,500 rpm) and peak power (10,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the Niken GT measures 267 kg (589 lbs) wet (curb), translating to a power-to-weight ratio of 0.43 HP/kg (2.35 kg per horsepower). Rider ergonomics and chassis geometry center around a 835 mm (32.9 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,510 mm (59.4 in) wheelbase engineered for balanced agility and highway composure. The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 2019 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
134 HP/L
Power-to-Weight
0.43 HP/kg (2.35 kg/HP)
Power Band Window
8,500–10,000 rpm
Standover Height
835 mm (32.9 in)
Engine
Displacement847.0 ccm (51.68 cubic inches)
Engine TypeIn-line three, four-stroke
Power113.5 HP (82.8 kW)) @ 10000 RPM
Torque87.5 Nm (8.9 kgf-m or 64.5 ft.lbs) @ 8500 RPM
Compression11.5:1
Bore x Stroke78.0 x 59.0 mm (3.1 x 2.3 inches)
Valves/Cylinder4
Fuel SystemInjection. Mikuni throttle body FI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCI
LubricationWet sump
CoolingLiquid
Max RPM10500
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMulti-plate assist and slipper wet clutch
Performance
0-400m11.25 seconds
0-100 km/h4.00 seconds
Chassis
Frame TypeDiamond
Rake20.0°
Trail74 mm (2.9 inches)
Front SuspensionDouble Upside telescopic forks
Front Travel110 mm (4.3 inches)
Rear SuspensionAdjustable link-type, single shock
Rear Travel125 mm (4.9 inches)
Wheelbase1510 mm (59.4 inches)
Ground Clearance150 mm (5.9 inches)
Wheels & Brakes
Front Tyre120/70-R15
Rear Tyre190/55-R17
Front BrakesDouble disc. ABS. Hydraulic.
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc. ABS. Hydraulic.
Rear Brake Ø282 mm (11.1 inches)
WheelsTwo front wheels
Dimensions & Weight
Weight incl.267.0 kg (588.6 pounds)
Seat Height835 mm (32.9 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
