Engineered by Yamaha for the enduro - offroad motorcycle segment, the 2012 Yamaha XT660R relies on a 660 cc (40.3 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 47.3 HP (34.6 kW) at 6,000 rpm while maximum torque reaches 60 Nm (44.3 lb-ft) at 6,100 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 71.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the XT660R measures 181 kg (399 lbs) wet (curb), translating to a power-to-weight ratio of 0.26 HP/kg (3.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 875 mm (34.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,505 mm (59.3 in) wheelbase engineered for balanced agility and highway composure. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 2008 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
71.7 HP/L
Power-to-Weight
0.26 HP/kg (3.83 kg/HP)
Standover Height
875 mm (34.4 in)
Engine
Displacement660.0 ccm (40.27 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power47.3 HP (34.6 kW)) @ 6000 RPM
Torque60.0 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 6100 RPM
Compression10.0:1
Bore x Stroke100.0 x 84.0 mm (3.9 x 3.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionTCI
LubricationDry sump
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multiple-disc coil spring
DrivelineConstant Mesh, 5-speed
Chassis
Frame TypeSteel tube, diamond shaped
Rake27.0°
Trail107 mm (4.2 inches)
Front SuspensionTelescopic forks
Front Travel225 mm (8.9 inches)
Rear SuspensionSwingarm
Rear Travel200 mm (7.9 inches)
Wheelbase1505 mm (59.3 inches)
Ground Clearance210 mm (8.3 inches)
Wheels & Brakes
Front Tyre90/90-M21
Rear Tyre130/80-M17
Front BrakesSingle disc. Hydraulic
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc. Hydraulic
Rear Brake Ø245 mm (9.6 inches)
Dimensions & Weight
Dry Weight165.0 kg (363.8 pounds)
Weight incl.181.0 kg (399.0 pounds)
Power/Weight0.2869 HP/kg
Seat Height875 mm (34.4 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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
