The FZS has carbs and an EXup valve that actually does something for the power ( providing it ain't seized and adjusted properly).
The FZS engine is loosely based on a R1 engine from 98 and the FZ1 from later model R1.
FZS uses a steel tube frame and FZ1 a aluminium cast frame( known to crack) :rolleyes
The FZ1 2006 on has fuel injection and a exhaust valve that is there to cut noise at low revs so it can pass euro bollocks tests.
The FZS engine is loosely based on a R1 engine from 98 and the FZ1 from later model R1.
FZS uses a steel tube frame and FZ1 a aluminium cast frame( known to crack) :rolleyes
The FZ1 2006 on has fuel injection and a exhaust valve that is there to cut noise at low revs so it can pass euro bollocks tests.