Forks: Ducati VS GSXR

[DarkStaR]

  I had to google EVOO. 

[Hank]

Showa has soul 

And fantastic translators
http://www.showa1.com/en/

Differential gear is a part of power transmission device. The driving force generated by an engine is transmitted to the tires through various types of bevel gears. Representative of the automotive components that incorporate such bevel gears is the differential gear assembly that absorbs the rotational difference due to the direction change of the diving rotational axis or the rotational difference between the right and left wheels, produced during cornering.

Better than the old Hyosung website, but still will put a large smile upon your face 

[OverCaffeinated]

Oh, makes sense, i would need 20mm spacers since GSXRs are 300mm and mine are 320. I bet i could do this for less than 100 bucks after parts acquisition! Im still pissed of that i missed out on the ebay 999 shock for $59. I was too busy working and lost track of time. :/ thanks man!

I'm not sure, but I think you would need 10mm spacers. Half the difference in diameter sizes.

This is what I've got from the thread so far.
Radial brakes: Do it!
Installation & labor vs price: Still neck and neck.
Results/Performance: Both would be definite improvements. I wouldn't have to rebuild forks from a S4R, and I would on the gsxr.

Conclusion for me anyway. I will continue to build the gsxr forks I already have, but keep an eye out for a good deal on S4R forks. Keep in mind this is a budget build for me. If I had stupid money I'd get these from Marzocchi, but since I'm just stupid with no money it's ebayin I will go.

[He Man]

If your looking for S4R forks, i basically have them. If you are looking for S4Rs forks, then look away. lol

S4R still ran 3 way showas, abiet, it had TiN coatings and still only had regular brakes. S4RT has showas with Radial mounts. Both forks will need to be rebuilt. GSXR will be cheaper since the valving on it is better ( assumption ). The S4R are sprung for "180lbs" so ive heard. Again, those numbers are usually still shy of what would make the bike handle incredibly well.

[OverCaffeinated]

I ASSumed all the S4R forks has the radials. He Man, your right  the base model has regular brakes. All 2008 versions of the S4R have radials.

As I said before, and part of the reason for the thread, the gsxr swap involves making spacers on your own . And kinda hoping you do it right. That makes me a bit nervous. 

[He Man]

AS far as the shims go, im not going to do them. I live in NYC, and ironically, in Brooklyn....Sunset Park, also deemed Industrial Park for its massive factories (and the fact that there is a huge link to the past, rail roads on city streets from the old docks) so getting someone to machine me something is as simple as walking down the block, knockinig on a shop and going "excuse me sir, could you machine some small bits for me?"

Hell, i just looked online, i cna make my own. I can buy 12" of a round alluminum bar for less than 10 bucks. Cut 20mm. drill appropriate sized hole. BAM spacer.

[Hank]

I just came 

Why do people do GSXR fork swaps?  Gixxers are the anti-Ducati! 

[DarkStaR]

AS far as the shims go, im not going to do them. I live in NYC, and ironically, in Brooklyn....Sunset Park, also deemed Industrial Park for its massive factories (and the fact that there is a huge link to the past, rail roads on city streets from the old docks) so getting someone to machine me something is as simple as walking down the block, knockinig on a shop and going "excuse me sir, could you machine some small bits for me?"

Hell, i just looked online, i cna make my own. I can buy 12" of a round alluminum bar for less than 10 bucks. Cut 20mm. drill appropriate sized hole. BAM spacer.

Don't you need shims for the rotors also?

[He Man]

Those i will have someone make for me. im wondering if anyone on this board is willing to make a complete set of shims for me...

[DarkStaR]

Those i will have someone make for me. im wondering if anyone on this board is willing to make a complete set of shims for me...

There was a guy on TOB that did it, and offered selling copies of his shim kit.

TOB is so hard to navigate now, but this is close:
http://www.ducatimonster.org/forums/accessories-mods/150508-put-gsx-r-forks-my-s2r.html

[OverCaffeinated]

That is the thread that got me to buy my gsxr forks in the first place. I was thinking about sending Qfactor a pm to see if he still makes the components. There would be a total of four different parts to be made, plus grinding down the stock gsxr axle. I have access to a small and simple cnc machine, but I'd almost feel more comfortable outsourcing it to someone with more experience in that field.

[OverCaffeinated]

The addition of radial brake calipers has also been a big part of this mod. After doing a few searches for parts I have found that I can get a set of used Tokico radial calipers for under $100.00. In fact I can't even find any over $100. Now if I wanted to stay "Brand loyal", like I want to, and get Brembos I'm looking at closer to $500.00 used, if I can find them, and $1000.00 new. RBX of the original thread used the Tokico parts, and I've heard that they are very good brakes. Any opinions?

[Monstermash]

The addition of radial brake calipers has also been a big part of this mod. After doing a few searches for parts I have found that I can get a set of used Tokico radial calipers for under $100.00. In fact I can't even find any over $100. Now if I wanted to stay "Brand loyal", like I want to, and get Brembos I'm looking at closer to $500.00 used, if I can find them, and $1000.00 new. RBX of the original thread used the Tokico parts, and I've heard that they are very good brakes. Any opinions?

 The Tokico calipers on the GSXRs are 100mm so replaceing them with the Brembos will not work as they are 108mm. Brembo does make a set of the 100mm but be prepared to spend around $1000 for them as noted above.

 Qfactor was one of the members who was making the spacers/shims. I would pm him as he did a really nice job on a set for an install I did last year.

That is the thread that got me to buy my gsxr forks in the first place. I was thinking about sending Qfactor a pm to see if he still makes the components. There would be a total of four different parts to be made, plus grinding down the stock gsxr axle. I have access to a small and simple cnc machine, but I'd almost feel more comfortable outsourcing it to someone with more experience in that field.

I'm not sure where you got the idea that the GSXR axle needs "grinding down" but it's not true. When I did Jewcati's GSXR fork swap last year we used the stock GSXR axle and the spacers that Q made. No machining of the GSXR axle was required.

I'm not sure, but I think you would need 10mm spacers. Half the difference in diameter sizes.

 If I had stupid money I'd get these from Marzocchi, but since I'm just stupid with no money it's ebayin I will go.

 These forks are absolutely beautiful. I was looking into doing a set last year but I couldn't get the vendor to give me any tech support as they are not model specific and need custom spacers etc. to make them work.

[TAftonomos]

I've got a complete 07 gsxr1k front end FS.  If I decide I have enough time, I'll fit it to my monster.  Pending me liking it, my S4Rt front end complete w/radial brembo's will be FS.

The gsxr's forks are nice, being 3 way adjustable (high/low speed comp and rebound).  Once rebuilt/revalved, they should be as good as anything really.

[terrapete]

I've had the front end set up for 2 1/2 yrs and still loving it.  Using the Brembo radial master cylinders is a must to take advantage of the brake set up.
RBX did a good post last year on how to do this mod on the DML.