1991 FZR 600

Still based largely on the first model, the new version featured several changes:

•  New upper cowling with single headlight and projector beam
•  Deltabox type rear swing arm
•  Wider 4 inch rear wheel and wider tyre
•  Strengthened gearbox (1st and 2nd gear)
•  Four pot brake callipers in front (from 1990 model)

1994 FZR 600 R

More radical and faster with new looks, the second generation of middleclass supersport was clearly targeted towards the feeling of track and competition. Many parts were derived from the YZF 750 R, being the base for Yamaha superbike racing. The FZR 600 even got the face of the 750 with its two "open eyes".

With new chassis and completely new engine, a shorter stroke and increased power (98hp /11500rpm) the FZR 600 R qualified again for least compromise supersport in it's class. To increase handling, the wheelbase is reduced to 1415 mm (-10mm). For more grip: wider tyres front and rear in 17 inch diameter were added to employ the latest generation in sports tyres.

1996 YZF 600 R (Thundercat)

The end of the FZR era: nicknamed Thundercat, the model had a new bodywork with better aerodynamics and better rider protection at the same time.

While chassis and engine were both based on it's predecessor the FZR 600 R, components saw a fair amount of detail improvements:

•  New air induction system
•  New carburettors
•  Lightweight pistons
•  New exhaust system
•  New 4 pot callipers etc.

The concept proved successful with its performance features yet still retaining a certain amount of comfort for use in everyday traffic. Because of that, the bike was still sold for another 3 years after the introduction of the new radical R6, to a clientele looking for a balanced supersport machine.

1999 YZF-R6

The first generation R6 was built with the same development target of today's R-series:

•  Highest power
•  Lowest weight
•  Unrivalled agility 

The engineers started with a blank sheet of paper and made no compromise. A very compact aluminium chassis and an ultra compact high performance 4 cyclinder are the ingredients of this radical machine. The engine was the first production four stroke with a performance of more than 200 HP per litre (120 HP @ 13000rpm). Wheelbase was reduced to 1380 mm and dry weight to 169 kg. The machine super-ceded its predecessors in all aspects and set the standards for supersport machines to come.

2001 YZF-R6

Based on the previous model the new version saw a couple of important changes both technical and styling. Most obvious was the new rear tail part with its LED tail lights.

Other changes included:

•  Lighter pistons and modified connecting rods for better midrange response.
•  The weight was reduced another 1.5 kg
•  New specification tyres improved grip and handling
•  Handlebar angle was changed for better comfort
•  U-lock space under the seat added