The 2009 MY Buell 1125R is the first model to be equipped with an in-house developed engine, a liquid-cooled, four-stroke. 1125cc, 72-degree V-Twin powerplant mated to a six-speed manual transmission with a belt final drive and can produce a claimed 146 horsepower and 111 Nm of torque.
It also comes with standard features such as a small fairing with an adjustable windscreen, two side-mounted radiators, a large, ZTL2-type, 375mm single disc as a front braking system with a 6-piston caliper, a fully-adjustable Showa suspension package composed of an upside-down fork in the front and a mono-shock in the rear, a digital and analogue instrument cluster and a hollow aluminium frame that doubles as a fuel tank.