I love this bike, it is a sport-tourism model oriented with still high performances. There is plenty of power to ensure you lot of fun when you want to enjoy the acceleration and a fast riding. The GPZ 1100 is a bike designed and developed from the great GPZ 900R (very similar chassis) with the same engine of ZX-11R Ninja (In Europe ZZR 1100) but a little quieter (20 HP less). As a owner since more than 5 years I decided to modify the exhaust (an oval 4 into one Vance & Hines) and proceed with some little aesthetic touch like removing the big light indicators and replacing them with very small ones. This gave a more aggressive styling. I went regularly to the track with this bike for the entire day and I could go faster than guys with powerful supersports. Not bad at all!!