2003 GSXR 600 front end swap for 2003 GSXR 1000 front end | GTAMotorcycle.com

2003 GSXR 600 front end swap for 2003 GSXR 1000 front end

Rossi86

Rossi86

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I have a 2003 gsxr 600 track bike that's 100% stock right now. Recently, I bought a 2003 GSXR 1000 front end (clipons, inverted forks and radial calipers) that I want to put on the 600 and I need to figure out a couple of things before I start swapping parts:

1) The 600 has 320mm diameter front rotors while the 1000 has 300mm rotors. I was thinking of putting a 10mm spacer on each caliper mount at the fork to make up for the difference, is this safe to do for a track bike or should I just buy 300mm rotors to match the forks and calipers?


2) I want to upgrade the front master cylinder to a radial one as both 03 GSXR 600 and 1000 use a conventional type. For these bikes people usually switch to a 2004+ R1 radial master cylinder for better feel and performance. Is this switch really worth it for those of you who have done it, or should I just go with a 2005+ gsxr radial master cylinder (it's cheaper than the R1)?


Let me know what you guys think I want to get this bike ready for next year...
 
Hey, I did this exact swap at the beginning of the season. Swapped a 2005 750 front end and swingarm onto my 03 600. I cannot tell you how easy this is, everything is a direct swap zero fabrication except the front caliper/rotor spacers. For the spacers, originally I used washers to space out the 10mm needed. This look lasted about 15minutes (looks so ghetto). I had a friend machine me 10mm aluminum spacers. 4 track days this summer and absolutely no problems with the spacers. I used the stock 05 750 master and braided lines, a world of difference! I was blown away.

Don't hesitate to contact me with any questions,
Jason
 
1- ran spacers on mine to keep the 320mm rotors and many do it, they don't cost much to make. I do have my 300mm rotors just collecting dust if u wanna trade for ur 320's

2-can't compare the yami to gixxer radial but A gsxr radial is a cheap upgrade.....I'm a brembo guy and would highly recommend one on a track bike, even street for extra braking insurance lol
 
No I didn't get longer caliper bolts. I checked them the first day track after every few sessions and they were rock solid. I then checked them after the next three track days and again tight as when I started so I figured they are OK.

One thing I forgot - the front fender. Your stock 03 will work but the mounting holes don't line up perfectly. Two options 1)zip tie the bottom the two mounts or 2)look for a 2003 1000 fender over the winter.
 
D-man, thanks for the offer, let's see if I can find those spacers, if not I might ask you to trade. I think I'll go with the R1 MC and get it done right once and for all.

Jason, right now I don't even have any caliper bolts. But i'll look at the length of them on my street 03 1000 and maybe buy 1cm longer bolts if I use the spacers. I guess I'll look for another fender...
 
Rossi86 said:
D-man, thanks for the offer, let's see if I can find those spacers, if not I might ask you to trade. I think I'll go with the R1 MC and get it done right once and for all.

Jason, right now I don't even have any caliper bolts. But i'll look at the length of them on my street 03 1000 and maybe buy 1cm longer bolts if I use the spacers. I guess I'll look for another fender...
Click to expand...

The thread pitch is a fine pitch...make sure you get a high grade bolt as well. It might be hard to find a stainless cap screw in metric in stock in canada, you might be able to find 4 bolts cheaper used from another bike if you know the length and pitch.
 
frekeyguy said:
The thread pitch is a fine pitch...make sure you get a high grade bolt as well. It might be hard to find a stainless cap screw in metric in stock in canada, you might be able to find 4 bolts cheaper used from another bike if you know the length and pitch.
Click to expand...

M10x1.25 I dont remember the length but I would highly recommend getting longer bolts, 10mm spacers means 10mm less thread going into the fork bottom....I had a caliper rip the threads out of the fork bottoms and almost ate **** hard, because I used the original length bolts with 10mm spacers...Some bike only have 15mm of thread going into the caliper, that will leave you with only 5mm!


You can have anyone with a lathe machine you up some spacers cheap
or you can buy all kinds of fancy ones
http://www.ebay.com/itm/Radial-Brak...Parts_Accessories&hash=item3f0aab5841&vxp=mtr
http://www.ebay.com/itm/Radial-Brak...Parts_Accessories&hash=item3f1c8060b2&vxp=mtr

Some companies even sell spacer kits with longer bolts included...Like Brembo for example
http://www.oppracing.com/category/937-brake-caliper-spacers-bolts/

If I remember correctly your bike has 60mm long OEM so the 70's would work for you
http://www.oppracing.com/product_di...ce-spacer-screw-kit-10mm-spacers-70mm-screws/
 
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Stock bolts are 60mm, they will not work.....i replaced them with 70mm titanium, way lighter and much stronger.
 
I have spacers on my caliper. Bike has probably done 30k on them
 
anyone know if a k6 front (forks, tripples) fit a k1?
 
Forks, kinda. working on rebuilding a gsxr600 over the winter. I'll keep my eyes open when you throw it up for sale. Probably a good idea to hold onto it until your front end swap is confirmed complete and 100%, just in case.
 
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