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Old 06-12-2008, 09:51 PM   #1
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06-07 gsxr 600/750 racers or hardcore trackriders

suspension.....

been hearing a lot of instability issues with stock suspension setup for these specific year make/model. i'll be riding my new gsx600rr with stock suspension for a few months....so i'd like to optimize it as much as possible.

do you have your forks recessed into the triples. flush or how many mm in do you have em? do you have fork cap extenders also? did you shim the rear shock to raise the rear also?

thanks,
tony
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Old 06-12-2008, 10:02 PM   #2
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I have my forks 5mm sunk into the triples and the rearend is pretty low using a Penske triple clicker running Dunlop D211's. I rode on stock suspension with Michelin Power Race's and had no problems whatsoever.
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Old 06-12-2008, 10:12 PM   #3
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Quote:
Originally Posted by DustinJ View Post
I have my forks 5mm sunk into the triples and the rearend is pretty low using a Penske triple clicker running Dunlop D211's. I rode on stock suspension with Michelin Power Race's and had no problems whatsoever.
yeah, remember seeing your forks sunk into the triples and said to myself....DAMMNNNNN

now i see why you did that....considering what i've been hearing about the gsxr oem geometry setup.
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Old 06-13-2008, 02:22 AM   #4
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Well, I was on an 01 R6 with LE forks and Penske triple that was set up by refreshed and tuned by Jim Cambora. I got my 06 GSXR750 with stock fork valves with .90 springs with a Penske double. My forks have not be lowered through the triples yet. I'm currently running Dunlop 211's with this set up. I just haven't had the time to take the bike to Jim for a refresh or setup for the tires. However, with that said I've shaved a solid 5 seconds off my lap times with this bike compared to last year. Can't wait to get it tuned and some new valves in there. I'm not the fastest novice but I do run respectable times 1:55-56 at TWS (Texas World Speedway) and 1:25-36 at Cresson and 1:29 at OHR. I've had 4 different track bikes, two R6's, 02 GSXR600, and 06 GSXR750. I'm very happy with the 06 750 as it stands right now, it can only get better with a few extra suspension parts/tuning.
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Old 06-13-2008, 07:20 AM   #5
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Really depends on your tire brand due to diameter differences.You can't go wrong getting Jimmy C to set it up for you-it will be money well spent!
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Old 06-13-2008, 07:50 AM   #6
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I'm not fast. But I did research the out of this.

7mm down in the triple. (I have extended caps Ohlin’s cartridges)
5mm up in the back (320mm eye-to-eye) Ohlin’s Triple Click
Pilot Race Tires

I also ran stock suspension with Pilot Race tires and liked it as well.
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Old 06-13-2008, 09:18 AM   #7
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thanks for the info guys.
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Old 06-13-2008, 10:32 AM   #8
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your first mistake was going with a hondasuki, good luck with it though
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Old 06-14-2008, 11:50 AM   #9
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Derek Wagnon has both of his GSXRs set pretty low in the forks too. I never noticed until yesterday...
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Old 06-14-2008, 12:40 PM   #10
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Quote:
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your first mistake was going with a hondasuki, good luck with it though


So what is your next track weapon of choice?
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Old 06-14-2008, 01:46 PM   #11
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your first mistake was going with a hondasuki, good luck with it though
it handles better than that lame kawasaki !
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Old 06-14-2008, 09:15 PM   #12
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Quote:
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it handles better than that lame kawasaki !
That kawi i had was an old donkey. It was my first track bike so i had to start somewhere. You will see my new trackbike at a local track it will be better then then old donkey i had.
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Old 06-16-2008, 08:37 AM   #13
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Hey guys please excuse my ignorance, but I’ve always heard to raise your fork tubes through the triple to help turn in which it does for sure. My last track day a racer told me to lower the forks to make them flush with the triple saying I will have more suspension travel. He talked about the extenders to etc.. So what the low down on this? If you lower the forks flush will you have change the compression or rebound any? Didn’t mean to jack the thread in any way, but figured I’d ask since you guys were talking about it and are racers.
Thanks.
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Old 06-16-2008, 09:41 AM   #14
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Both Derek Wagnon & Brandon Spradling run the BT003's and have extended forks and recessed 5-6 mm's. I'd call Jim Cambora or Patrick at Motorcycles Unlimited and see whats up. The geometry works, the numbers don't sound right, but they both seem to be hauling . They both have newer GSXR 600's. Derek has a 750 as well.

John
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Old 06-16-2008, 10:09 AM   #15
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Quote:
Originally Posted by kawi jm View Post
Both Derek Wagnon & Brandon Spradling run the BT003's and have extended forks and recessed 5-6 mm's. I'd call Jim Cambora or Patrick at Motorcycles Unlimited and see whats up. The geometry works, the numbers don't sound right, but they both seem to be hauling . They both have newer GSXR 600's. Derek has a 750 as well.

John
this is exactly what i've been hearing....i'll be going this route as well.
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Old 06-16-2008, 12:48 PM   #16
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Quote:
Originally Posted by Turnerscasa View Post
I'm not fast. But I did research the out of this.

7mm down in the triple. (I have extended caps Ohlin’s cartridges)
5mm up in the back (320mm eye-to-eye) Ohlin’s Triple Click
Pilot Race Tires

I also ran stock suspension with my forks flush in the triple with Pilot Race tires and liked it as well.
SORRY CORRECTION!
7+5=12mm down from their original stock position in the triple. (I have extended caps Ohlin’s cartridges)
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Old 06-18-2008, 02:51 PM   #17
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Today's bikes:

1.) already have short wheelbases
2.) have very aggressive rake/trail numbers
3.) are incredibly light
4.) are rolling on much better tires than just a few years ago

All this adds up to some old suspension theories falling by the wayside. The adage of "dropping the front end" may or may not apply to a particular bike any longer.

I recently raised the front of my Mille 3mm and there is no difference in steering speed or quickness. But there was a definitive improvement in "feel".

Your experience may or may not be the same. Much like gearing, you need to discover what works best for you.
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Old 06-18-2008, 03:42 PM   #18
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The other thing is most new racers started racing on street bikes.

Where older racers started on "race" bikes or dirt tracking.

So, IMHO, the newer racers like the bike to feel more planted, and are less comfortable w/ the bike being twitchy. I come across this all the time.
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