Gixer-Sixer's about 100hp(older models) and about 75lbs lighter, better suspened, better brakes......How can I break this to you...?

no comparison. completely different bikes, for completely different types of riding. the gsxr bikes are designed around racing... the gsxf bikes are designed around the idea of a sporty bike built for the long haul for touring applications. but yes, the gsxr has more power, its smaller, lighter, handles better, has better suspension, better braking, etc... but the katana is more comfortable, better for passenger carrying, easier to find parts for and cheaper, requires little service, very reliable.

personally.... i dont have a problem riding with the guys on the R bikes... i can still wheelie it, still run very high speeds, drag pegs and have tons of fun. though i have dumped it because i ride it too hard, past the limits of the bike. if i could do it over again would i get a katana? probably not. but i also didnt realize i would be riding the piss outta the bike when i got it. yep.

pretty much already spelled out for you.. both very capable bikes for very different types of riding. You can still carve the twisties on a Kat and be much more comfortable doing it than on a gixxer..conversly the less weight, more HP, makes for a better track bike like the gixxer.

Everyone pretty much hit the nail on the head just putting in my $.02 oh and i am with you on that jason i have dumped it a lot riding it above it's limits if could do it over again definitely GSX-R 600 but kats are good too...

A friend of mine told me the modern 600's are twitchy and unstable until you hit 30 40 mph. But, my Kat in comparision is long and comfortable. Kat is slower, but better to learn on. 750 would be a good bike. I would try to ride a modern 600 and or a kat to get a feel.

Me thinks you ride past the limits of your tires more than past the limits of your bike. Have you gotten good tires yet?

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As for the GSXR vs GSXF:

Late model GSXR's:
The R series is water cooled. The means the engines can build more heat in the same space, which permits the engineers to use higher compression ratios, resulting in more power (more power per bang).
The R series also uses lighter-weight components in all the moving parts (such as shims rather than nut-adjusters for the valves); all the lighter masses in the spinning engine parts means the engine is designed to be able to rev to a much higher red-line, again resulting in more power (more bangs-per-second).
Fuel injection and good mapping, with a fuel-control loop means more perfect power across the board (more power-per-bang).
The R series is also very light weight, using lighter engine components, lighter frame, having a shorter wheelbase; less mass to move means faster acceleration.
The geometry of the bike is also given to more nimbleness and handling prowess (less mass to turn, much shorter wheelbase to turn on).
This is a bike engineered for track use and sold for street use, and there are times that this is rampantly appearant (which is why so many riders install steering dampers, for example -- because the roads in the real world aren't track-perfect).

GSXF:
Oil-Air cooled. This is good for long engine life and reliability, because it means all of the engine warms up at about the same rate at the same time. It also means that extra complexity of water (water pump, thermostat, radiator, fans, fan controllers, etc) are all removed, reducing the maintenance and one of the primary away-from-home breakdown reasons. But it also generally means less power in stock form.
Heavier, long-wheelbase, steel-framed. This is good for real world road conditions, where the added sprung mass provides better sprung vs. unsprung mass ratios, giving it a better ride over bad pavement. The longer wheelbase also makes for more stability (headshake when induced, diminishes in oscillations simply due to the geometry of the bike).
Ergonomics. The bike is designed as a more comfortable riding platform for the real world; stance is more upright (better visibility and less fatigue over distance), and passenger accomodations are very generous compared to any race-rep.
Load capacity. The Katana has the highest cargo-load capacity of any bike I've seen the specs for except the BossHog, surpassing even the GoldWing, ST1100/1300, FJR, and all the BMW's by at least narrow margin (a wide margin in some cases)/
Maintenance. Simplistic in general, as simple as any faired 4-cylinder I've ever seen that uses adjustable valves (as verses to hydraulics).
Reliable. Like a brick. Generally 95% of all reliability problems come down to a few basics - fouled plugs, dirty carbs.
Cost. Cheap. Figure probably 35% cheaper than a same-displacement GSXR...

There is a very good discussion of some of the more technical merits of this here:
KR: Water cooled vs. Oil-Air Cooled

Cheers,
=-= The CyberPoet

I should be used to the in depth answers from cyber by now but I just can't. I'm amazed at the knowledge and time put into all these answers. You must have all these pre done and just cut and paste.

wow thanks CyberPoet

Oh wise one Cyber...you rock 8)

Wishing everyone on KR the very best in the New Year

I agree with CP about riding above the tire limits, not the bikes. Unless you are Matt Mladin or Vale, it's really doubtful you are riding beyond the Kat's limits. If ya want proof, come out here and ride behind BearKat as he flogs a 771 Kat and still has bike limits to go (and he's really fast).

Oh and not to hijack the thread but yeah, night and day differences between the R and F models

yes, im running Pirelli Diablos now... and im workin on pushin them to the max, but havent got there yet... though i have scraped the left peg (no feeler) already.

and yes, leave it to CP to break it down and give you the most accurate and best description of an issue.

Go buy some more feelers... They're a lot cheaper than pegs and far less likely to cost you an off

Cheers,
=-= The CyberPoet

If you're goal is to outride you your tires and your Kat.. u might consider switching to this, its got curb feelers already