Is the new Buell 1125R sport bike the riding experience that young riders were looking for? For the 1st time at Buell, the 1125R is powered by a liquid-cooled engine (Twin side mounted radiators). It is a 72º V-Twin “Helicon” fuel-injected built in Austria by BRP-Rotax. Bore and stroke are 103 x 67.5 with a compression ratio is 12.3:1. Transmission is 6-speed with final belt drive on the left side. The aluminum frame is also the fuel tank and holds a capacity of 5.6 gallons. Wheelbase is longer than before: 54.6” and weight is only 375 pounds. The front wheel (17”) is supported by 47 mm inverted forks. A new Buell ZTL2 front brake features an eight-piston caliper based on the brake developed for the Buell XBRR racing motorcycle. Buell Motorcycles.