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GSXR Fork Information / Permutations

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528K views 1.1K replies 197 participants last post by  Bremsen  
#1 · (Edited by Moderator)
Here is a summary of the different models of USD Radial forks used on the various Suzuki models.
Hopefully, this will concentrate all the dimensional information on the most popular SV/GSXR fork conversion possible configurations.

Let's start with the matrices for the dimensions of the various fork models:

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Acknowledgments to Sam over at TL zone for initiating the primary chart creation and to all those who provided the data for it.

This excellent illustration courtesy of jeff721 will help indicate to what the measurements in the chart refer:

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Of course, there are the non-radial USDs used on the 01-03 750 and 01-02 1000 but the Radial versions seem to be the most popular, so that is the focus of this post.

So - looking at the primary area of interest for GSXR Radial Forks:

2003/04 1000
Gold/black inner tubes; gold calipers
300mm rotors.
850 springs
32mm offset; 54mm lower clamp
Right offset ignition top clamp, 28mm bore

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2005/06 1000
Bronze/black inners; black calipers
310mm rotors
950 springs
30mm offset, 54mm lower clamp
Center ignition top clamp, 28mm bore

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2004/05 600/750 (same)
gold/chrome legs, gold calipers
300mm rotors
850 springs
30mm offset, 54mm lower clamp
Right offset ignition top clamp, 25mm bore

Image



2006+ 600
gold/ chrome leg, black calipers
310mm rotors
900 springs
30mm offset, 53mm lower clamp
Left offset ignition top clamp, 28mm bore

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2006+ 750
black/ bronze leg
310mm rotors
1000 springs
30mm offset, 53mm lower clamp
Left offset ignition top clamp, 28mm bore

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Calipers:

03/04 1000 and 04/05 600/750 (fit 300mm rotors std)

* The 03 1000 calipers are 4 pads per caliper - look the same as the two-pad variant
No interchangeable re pads however

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All other GSXR models

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Yamaha Monoblock (R6)

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Caliper/Rotor Matrix:

Calipers can be utilized from all the models above, by using spacers* per this matrix.
* Note that although for some sizes it says N/A, this means the combo would be too tall;
however, you could actually machine the caliper (or fork leg stanchion) as opposed to a spacer

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Triple Clamps:

You can mix & match a bit here:
The ideal top clamp I believe would be the 04/05 600/750 clamp
This has ignition offset to the right (same as SV and more conducive to the Vee shape of the front of the speedo for naked)
It has a 30mm offset and a 25mm bore.
Direct fit on 04/05 l600/750 lower triple clamp/forks
To fit on 06+ 600/750 forks/lower triple, bore stem hole to 28mm
To fit on 05/06 1000 bottom triple, bore stem to 28mm

If you have no access to machining, then the 05-06 1000 top clamp will fit directly on the 06+ 600/750 steering stem. This clamp has ignition 'straight ahead. The steering lock WILL lock, albeit with the wheel straight ahead, as opposed to the conventional full left position.

06+ 600/750 top clamps obviously 'fit' their own forks/bottom triple, however, the ignition is offset to the left; it requires some machining of the ignition module to avoid interference with the frame on the left side and the steering lock will not function without drilling frame. This makes it a less ideal choice.

Bottom clamp:
03/04 1000 has 32mm offset, 54mm bottom fork dia, and 25mm stem
05/06 1000 has 30mm offset 54mm bottom fork dia and 28mm stem
04/05 600/750 has 30mm offset, 54mm bottom fork dia, and 25mm stem
06+ 600/750 has a 30mm offset, 53mm bottom fork dia, and 28mm stem

Note that 06+600/750 forks are 53mm at the bottom clamp diameter - the others above are 54mm; so consider that as you wish to mix/match bottom triples & forks.

Axles:

The wheels are comparable fitment for all 01+ GSXR;
However, the axles change with the fork generations;

For the first group of forks per the caliper table above (03-04 1000 or 04-05 600/750)
uses an axle & collar nut (same as SV1K actually)
Note that there is no additional wheel/axle spacer required.

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For the second group of forks (05+ 1000 or 06+ 600/750)
the axle has a threaded bolt, rather than a collar nut, with a separate spacer that goes between the wheel & right fork leg.

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Steering Bearings:

All GSXR forks in the range above have 30/55/17 top & bottom bearings.
All Gen 2 SV650 and SV1K are the same sizes also
Gen 1 SV650 is the same bottom bearing but requires a special top bearing from TWF Racing.

Wheels:

All GSXR wheels after SRAD will fit any GSXR forks described above
The rotors change sizes (and fitment) however

Image

Mix n Match Capability for Wheels/Rotors:

01-04 1000 and 01-05 600/750 and SV1K all are the same wheel dimensionally;
Will take 300mm rotors from 03-04 1000, 04-05 600/750;
Will take 310mm rotors from SV1K;
Will take 320mm rotors from any 96-03 600/750 or 01-02 1000 or TL, or Hayabusa

05-08 1000 and 06-07 600/750 take 310mm rotors only, from these years of the wheel only.

09+ 1000 and 08+ 600/750 take 310mm rotors only - note that these rotors are NOT compatible with the group immediately above & vice versa.
 
#477 ·
all the swaps are equal difficulty on gen 1, you need to replace the top bearing. 05/06 1000 has centered ignition which gives you a normal steering lock, using that on 06+ 600/750 forks/lower triple will work quite well.
 
#480 · (Edited)
You can run any 01+ GSXR wheel.

If you're using stock 05/06 calipers without spacers, you need 310mm rotors. Zoran (twfracing.com) sells caliper spacers, if you wanted to run 320mm rotors you would need 5mm spacers. If you want to run 300mm rotors you can either run gold calipers with spacers, or have black calipers machined.

01-04 1000, 01-05 600/750, SV1000 all use the same wheel. The only 310mm rotors that fit this wheel are from SV1000. 320mm rotors come from 01/02 1000, 01-03 600/750, and I believe some older bikes as well - not sure. 300mm rotors are from 03/04 1000, 04/06 600/750. Not compatible with either other group of rotors.

06/07 600/750, 05-08 1000 all use the same wheel. This has thinner spokes than above, lighter, and uses 310mm rotors. Not compatible with either other group of rotors.

08+600/750, 09+1000 all use the same wheel. This uses twisted spokes, and uses 310mm rotors. Not compatible with either other group of rotors.


In addition, R6 calipers bolt up to GSXR forks with the right spacers. Brake info is in this chart in the first post:

edit: image removed, it's in the first post
 
#484 ·
Been researching the front end swap for years now, but I'm finally getting around to doing it myself. I have a set of 07 600 forks and am looking at calipers and master cylinders now. I understand that 06-09 600/750 or 05-08 1000 brakes are the same, correct? Also, would the 10 and up brembo calipers fit the forks? And if yes to the brembos, what diameter rotor? Still 310? Sorry for so many questions. I'm just trying to put on the newest calipers and mc that I can find.
 
#485 ·
R6 calipers will work as well. I think the chart calls for 2mm spacers but on my dad's SV1000 the pad is fully on the 310mm rotor with no spacers, 07 750 forks.
 
#487 ·
Hey guys, I found an entire 07' GSXR 600 front end for sale.

My question is, do the 07' GSXR 600 clip-ons clear my motorcycle? (07' SVS) I'm also going to raise the front up with a 120/70 tire. Will this clear or do I need clip ons from an 04'-05' GSXR600?

I'll be using a 04'-05' GSXR 600 upper triple clamp or possibly an 05'-06' GSXR 1000 upper triple clamp so I don't have to machine the stem to 28mm.

Thanks guys!
 
#489 ·
From 2004 the 600 and 750 use the same front end. They may also on older ones but I can't confirm that.

The bearings are the same between Gen2 SVs and GSXRs
 
#505 ·
I believe you can get a bracket from Aztek if you want to mount naked gauges with a GSXR upper triple.
I think many fab up a custom bracket and utilize the ignition or fork clamp bolts.
 
#506 ·
ok so ive looked thru ALOT of info about this swap. i should have a complete 05 gsxr setup in my hands soon from a freind. triple,forks, wheel, brakes, whole 9 yards.

what are my options on a steering stop with out going to srad triple and having to run a srad wheel setup? will the clip ons hit the tank with the 05 setup?
 
#511 · (Edited)
Forgive my noobness but I have read the whole thread and hoped for clarification.

I have 04-05 gsxr 600 front forks. What is the situation with wheels.

If I get a different wheel all I have to worry about is what spacer is needed for the brake rotors and calipers?

What about the bore size differences etc.?

I have the gold calipers from the 04-05 gsxr 600 as well.

What would be the process to use the 96-00 gsxr 600 wheel, since that wheel uses a 320 rotor and has a different rotor spacing of 134 vs 132 on the 04-05 gsxr 600 wheel?