The Yamaha FZ1/FZS1000 is derived from the R1 which means the latest technology with proven reliability. Injection is quite sudden on the 2006 machines – it’s something you get used to or solve with a Power Commander and some dyno time - although it's much improved on 2007-on machines. A little more low and midrange power would be nice but the sensation of the top-end rush, amplified by the high bars, is astronomic.