Built around Yamaha's classic motorcycle platform, the 2021 Yamaha XSR900 features a 847 cc (51.7 cu in) liquid-cooled in-line three, four-stroke configuration. 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 XSR900 measures 195 kg (430 lbs) wet (curb), translating to a power-to-weight ratio of 0.58 HP/kg (1.72 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank paired with a rated consumption of 5.35 L/100 km provides an estimated theoretical range of roughly 262 km (163 miles) between fill-ups.
Within MotoLibrary's Yamaha archive, this model family spans 11 indexed model years from 2016 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
134 HP/L
Power-to-Weight
0.58 HP/kg (1.72 kg/HP)
Power Band Window
8,500–10,000 rpm
Theoretical Range
~262 km (163 mi)
Engine
Displacement847.0 ccm (51.68 cubic inches)
Engine TypeIn-line three, four-stroke
Engine DetailsCrossplane crankshaft
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 59.1 mm (3.1 x 2.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCI
LubricationWet sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiplate assist-and-slipper wet clutch
Performance
Fuel Consumption5.35 litres/100 km (18.7 km/l or 43.97 mpg)
Greenhouse Gases124.1 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEU4 compliant
Chassis
Frame TypeDiamond
Rake25.0°
Trail103 mm (4.1 inches)
Front Suspension41mm inverted fork, adjustable preload and rebound damping
Front Travel137 mm (5.4 inches)
Rear SuspensionSingle shock, adjustable preload and rebound damping
Rear Travel130 mm (5.1 inches)
Wheelbase1440 mm (56.7 inches)
Ground Clearance135 mm (5.3 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre180/55-ZR17
Front BrakesDouble disc. ABS. Hydraulic.
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc. ABS. Hydraulic.
Rear Brake Ø245 mm (9.6 inches)
Wheels10-spoke cast aluminum
Dimensions & Weight
Weight incl.195.0 kg (430.0 pounds)
Seat Height830 mm (32.7 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.
