Performance has been significantly improved as well with an extra 5HP and a new 6-speed transmission. Integrated ABS brakes on most models, plus a bunch of other new stuff Fun to ride, somewhat like BMW's version of a Ducati Monster, only smoother but no less thrilling. The RT has had some aesthetic changes as well. Performance has been improved. BMW claims an additional 5HP with the 1150 engine and a new 6-speed transmission.
Integrated ABS is standard.
OTL for a more complete tech breakdown. If you liked the R1100RT, you'll love the R1150RT, because it's definitely a better motorcycle. Sensors that not only distribute braking front and rear for maximum effectiveness, they also change braking based on the way the bike is loaded. Press was mixed about the new braking system. Some thought it was the greatest ever, while other grumbled.