The Buell 1125R uses the Austrain BRP-Rotax liquid cooled engine, on paper this is a giant leap forward from the air cooled version that has been used in the past.
The engine is a 72-degree V-twin. Buell engineers wanted the angle of the V to be as narrow as possible, to allow more flexibility for positioning in the frame, but still wide enough to allow a clean straight path from the throttle bodies into the combustion chamber, 72 degrees is the ideal number. Buell claims an output of 146hp at 10,500 rpm at the crank & 82 foot-pounds of torque. The engine has a "dry sump" and has an oil storage tank in the left side, oil is not stored in the swingarm. Like previous Buell's the fuel is stored in the frame and has a capacity of 5.6 gallons.
The clutch, uses engine vacuum to reduce clutch pull effort and to provide a back-torque-limiting effect. It's easy to feel the effect by pulling the clutch with the engine off, then again with the engine running. Closed-throttle deceleration creates an engine vacuum which reduces the clutch clamp load. It's an entirely different approach than your typical, mechanical slipper clutch, Buell engineers claim it offers the advantage of using a free power source, the engine vacuum.
Specs
MSRP - $11,995
Engine - Rotax V-twin - 146hp
weight -375 lbs (421 wet)
Tansmission Six-Speed
Brakes
Front
Single 375mm floating rotor, 8-piston caliper
Rear
Single 240mm fixed rotor, two-piston caliper
Front Suspension - Showa Forks (47mm)
Rear Suspension - Showa adjustable single shock
The engine is a 72-degree V-twin. Buell engineers wanted the angle of the V to be as narrow as possible, to allow more flexibility for positioning in the frame, but still wide enough to allow a clean straight path from the throttle bodies into the combustion chamber, 72 degrees is the ideal number. Buell claims an output of 146hp at 10,500 rpm at the crank & 82 foot-pounds of torque. The engine has a "dry sump" and has an oil storage tank in the left side, oil is not stored in the swingarm. Like previous Buell's the fuel is stored in the frame and has a capacity of 5.6 gallons.
The clutch, uses engine vacuum to reduce clutch pull effort and to provide a back-torque-limiting effect. It's easy to feel the effect by pulling the clutch with the engine off, then again with the engine running. Closed-throttle deceleration creates an engine vacuum which reduces the clutch clamp load. It's an entirely different approach than your typical, mechanical slipper clutch, Buell engineers claim it offers the advantage of using a free power source, the engine vacuum.
Specs
MSRP - $11,995
Engine - Rotax V-twin - 146hp
weight -375 lbs (421 wet)
Tansmission Six-Speed
Brakes
Front
Single 375mm floating rotor, 8-piston caliper
Rear
Single 240mm fixed rotor, two-piston caliper
Front Suspension - Showa Forks (47mm)
Rear Suspension - Showa adjustable single shock