At the heart of the 2015 Yamaha XJ6 SP naked motorcycle, Yamaha relies on a 600 cc (36.6 cu in) liquid-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 77.5 HP (56.6 kW) at 10,000 rpm while maximum torque reaches 59.7 Nm (44 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 129.2 HP per liter and a 2,000 rpm working window between peak torque (8,000 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 XJ6 SP measures 205 kg (452 lbs) wet (curb), translating to a power-to-weight ratio of 0.38 HP/kg (2.65 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2013 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
129.2 HP/L
Power-to-Weight
0.38 HP/kg (2.65 kg/HP)
Power Band Window
8,000–10,000 rpm
Standover Height
785 mm (30.9 in)
Engine
Displacement600.0 ccm (36.61 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsForward-inclined parallel cylinders
Power77.5 HP (56.6 kW)) @ 10000 RPM
Torque59.7 Nm (6.1 kgf-m or 44.0 ft.lbs) @ 8000 RPM
Compression12.2:1
Bore x Stroke65.5 x 44.5 mm (2.6 x 1.8 inches)
Valves/Cylinder4
Fuel SystemInjection. EFI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCI
LubricationWet sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet, Multiple Disc
DrivelineConstant mesh
Performance
Emission DetailsThree-way catalyser
Exhaust4-into-1 exhaust
Chassis
Frame TypeDiamond Shaped
Rake26.0°
Trail103 mm (4.1 inches)
Front SuspensionTelescopic forks
Front Travel130 mm (5.1 inches)
Rear SuspensionLinked monoshock with spring preload adjustment
Rear Travel130 mm (5.1 inches)
Wheelbase1440 mm (56.7 inches)
Ground Clearance140 mm (5.5 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre160/60-ZR17
Front BrakesDouble disc. Optional ABS
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc. Optional ABS
Rear Brake Ø245 mm (9.6 inches)
WheelsBlack wheels
Dimensions & Weight
Weight incl.205.0 kg (451.9 pounds)
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
Overall Height1085 mm (42.7 inches)
Overall Length2120 mm (83.5 inches)
Overall Width770 mm (30.3 inches)
Fuel Capacity17.00 litres (4.49 US gallons)
Oil Capacity3.40 litres (3.59 US quarts)
Other
StarterElectric
Color OptionsWhite
InstrumentsAnalogue tachometer, multi-function digital display
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.
