Helleu Guy's and girls,
is there any chance of mounting bigger tyres than the standard 130? if not wat is the best tyre for roadracing Ime specially interested in short and long corners.
I want grip lots of grip,..

greetings from Brasil.

Peter

roadracing= generally illegal.........are you sure you don't mean track racing

Also, this is the wrong thread to post in for this question........

Moved question to its own thread. 

And welcome! 

As far as I know, "road racing" does not refer to racing on public streets.  Racing on a closed circuit road course is called road racing.

As to the question, you can get awesome rubber (such as Pirelli Sport Demons) in the stock 130 size.  The torque of the GS won't ask for more.  However, if you're obsessive like some of us, you can do the Katana wheel swap really easily and get even better rubber.

http://cgi.stanford.edu/~sanjayd/gs500/Upgrades/KatanaRearWheel

I did the swap so I could use Michelin Pilot Powers in 150, and I can't complain.  I lit into those tires at the track and they didn't even blink.

Yeah, thought about that later.........it's been a really long day

If you don't want to switch out the wheel,  the sport demons are probably the best......though some people say you can throw sportec m3's on there with 140 on the back

I'm doing a 6 inch wide TL1000R rear wheel on an 88 GSXR750 swing arm.Plan on running a 200-50-17.I haven't mocked it all up.It's to hot to do anything outside here.
I gotta bandit 600 rear wheel for my daily rider and can run a 160-60-17,but I don't recommend it.I'd stay with a 150-70-17.160 leaves little room.The chain is to close to the tire and the sprocket carrier has to be spaced out,unless you can find a 520 sprocket for the Bandit 600 carrier.They are out there.The other thing is finding the front sprocket with the shoulder on it.That helps to push the chain out some too.

I'm running a Kat wheel, 150 rear.  I ordered a 150 pilot power rear, then I found a pilot sport 110 front for $40 on ebay.  i ordered it, but I'll probably hold on to it until I collect a matching set, pilot sport rear and front, pilot power rear and front.  I am really excited about putting the pilot powers on.

Hello Friends thanx
for all this relevant information, my former bike was a SV 1000 N
so when I bought the 500 I got the shivers when I saw the size of that rear tyer .
so beeing used to lots of rubber Ime affraid I will make some "big" mistakes taking the curves as I used to ( knee on the gound )

greetings from Brasil to you all.

just be carful taking the turns you will start to scrape the side casings before you can get as low as the sv would..

thanx for the information,
Ill be carefull will let it go one turn at the time scratching ground is the limit for me, the SV's limit was far,..

greettings from Brasil

Peter

to answer your original question, yes you can go bigger, I have 140/80-17 rear and 120/80-17 front Avon Av46 & av 45 respectively. and its a great tire for commuting and "twisties"

i have a metzeler 140/80/17 rear tire , do i need any modifications to intall this tire?

and if i do install it. the front need to be diferent size too?

Quote from: pester on August 14, 2007, 05:53:28 PM
i have a metzeler 140/80/17 rear tire , do i need any modifications to intall this tire?

and if i do install it. the front need to be diferent size too?

NO

i have a 160 pirelli dragon  super corsa on my 90 gs, tons an tons of grip, never slipped a bit on me, but they do wear fast

i would love a wider tire but i don't think i am long for the GS anymore.  since i work at a suzuki place i am pretty sure a new bike is in the works before the end of the year

Quote from: pester on August 14, 2007, 05:53:28 PM
i have a metzeler 140/80/17 rear tire , do i need any modifications to intall this tire?

and if i do install it. the front need to be diferent size too?

140/80/17 fits/works good on a GS, I had a 140/80  AV36 on my 97 GS with a 110/70 BT010 front for a while.  Also ran a 140/80 AV46 rear with a 110/80 AV45 front on the 02 GS, liked it better.

http://img.photobucket.com/albums/v443/jcp8832/GS500tirelog.jpg

I have a 150/70 RoadAttack rear on my 02 GS right now and it's never slipped in over 8k miles so far.  

I have a 150/70 RoadAttack rear on my 02 GS right now and it's never slipped in over 8k miles so far.  

Hello 150/70 now we are getting somewere! do I  need some adjustments to get it in? does it touch the chain?

Quote from: toyopete on August 17, 2007, 03:41:05 AM
I have a 150/70 RoadAttack rear on my 02 GS right now and it's never slipped in over 8k miles so far.  

Hello 150/70 now we are getting somewere! do I  need some adjustments to get it in? does it touch the chain?

I ran a 150/70 Lasertec rear for 10k miles that had enough clearance all around on the standard 3.5" rear wheel.  The 150/70 RoadAttack is supposed to be the same width but it touched the brake torque rod a bit at times.  I went back after a couple thousand miles and bent the brake rod a bit for more clearance.  There is enough clearance to the chain and chain guard but the widest of the 150/70 tires would be quite close I think.  The new Avon Storm and Bridgestone BT021 tires are about 6 mm wider than the ones I used.

My current 150/70 RoadAttack, it's holding it's shape nicely at 8k miles:



Here's a rather poor picture of the RoadAttack clearance to the brake rod after I bent the rod a bit, it just touched before bending:

In general, what are the benefits of going radials on a GS?

Quote from: galahs on August 17, 2007, 06:38:26 AM
In general, what are the benefits of going radials on a GS?

better handling and wear