The F4's new four-piston brakes are a big improvement over the two-piston units of the CBR600F3. Power and feel is exemplary, without a hint of fade. The brakes work well with the new aluminum Pro-Frame chassis, which is very stable while braking mid-corner. On the gas or off, if you need to change direction, the F4 responds without complaint.

The transmission is extremely smooth, but it tends to seek neutral when shifting between first and second. That's great if you're waiting at a stoplight, but it is not particularly desirable when you're entering a corner. Overall, at the track we came to two conclusions: The F4 is a big improvement over the F3 and if you're riding on a track, bring along a pair of real tires.

First Look : Yamaha CBR600F4