Original tires on my 80 GS1000 need replacing, suggestions? Size equivelents? Tubes?

[pnedac]

Picked up a new (only 4K original miles) GS1000G and of course after all these years the tires will certainlu need replacing. I see that the back is a 130/90/17 and the front says 3.5x19. Is that the equivelent to 100/90/19? I am curious because I have read that this is an old style of tire sizing and is largely being phased out (which is obvious by the lack of ability to find a selection with this size). Just curious anout some of the good combos that dedicated GSers like to use. Also I see that these are "tubeless", but I also see that is says to fit a tube as well. Not sure why it says both on the tire, but I thought with mags you do not need as tube.

any help is appreciated.

Thanks,

Pat

[Frank Z.]

Have a new set of Avon Roadriders on my '80 1000. Nice and sticky, and ride well. http://www.motorcycle-superstore.com...4-0-0-24-1-1-1

[Dogma]

You have the sizes right.

I'll second the Avons too, though some people are staying away due to a premature cracking issue that cropped up a year or two back.

Spitfire S11 is another popular tire that's a little cheaper IIRC, but still delivers decent performance.

[Big T]

If you use the Search function you will find that all your questions have been addressed multiple times ad infinitum

[azr]

Glad someone picked up that bike, it seemed like a real deal.

[sedelen]

I have Avon Roadriders for both my bikes, the same sizes for both my '79 GS1000E and '82 GS1100E.
The old sizes were based on inches and the new sizes are metric.
I used 100/90-19 for the front, and 120/90-17 for the rear. I could've went the 130 width size for the rear, but I'm happy with the 120.
Even though these tires are "tubeless" the parts fiche for these bike shows tubes so I do use tubes, problem is even though I have stock wheels, I don't have "tubeless" rims.

[850 Combat]

Those tires are not original. 130-90 is larger than original, but it is often used.

The original Mag Mopus tires that they came with were terrible. Replacing them with Metzlers, back in the day, was a monster upgrade.

[Nessism]

The tube vs. tubless thing depends on the wheel. Suzuki seemed to have mixed stock of both, or they made a running change at some point. Look for lettering cast into the wheel stating "tubeless tires applicable" or something to this effect. If you get lucky and have one or both wheels with this lettering, I'd run it tubeless. You may have to purchase a tubeless wheel valve stem. If no lettering, I'd run tubes although some people convert to tubeless anyway.

As mentioned above, this topic is one of the more common so the archives has LOTS of different threads on both tires and Tubeless conversion details.

Good luck

[sedelen]

I do believe the original tires my '79 GS1000E came with were "Bridgestones" and were 3.50V19-4PR for the front and 4.50V17-4PR for the rear.
I see that the '80 GS1000G used the same size, page 45.

http://www.mtsac.edu/~cliff/storage/gs/GS1000G_Owners_Manual_80.pdf

All the tires sizes I see now are metric and you have to convert the inch based sized to metric.

My search at Avon motorcycle tires returned these results when I looked up your bike. These are Avon Roadriders.
100/90-19 57V for the front and
130/90-17 68V for the rear.

http://www.avon-tyres.co.uk/motorbike/gs-1000-d-e

and http://www.avon-tyres.co.uk/motorcycle/roadrider

Now all you need is a source. (Free Shipping here)
These are what I got on my bikes, even though it says it's for the rear, it's universal and will fit front and back, you just pick the size.

http://www.motorcycle-superstore.com/1/28/396/12107/ITEM/Avon-AM26-Roadrider-Rear-Tire.aspx

There are others out there, and maybe someone else will chime in and offer some of their favorite tires and vendors. But at least this will get you started and perhaps save you a little time in research.
Also, don't forget to get some compatable tubes that at least meet the capabilities of the bike and tires!

[koolaid_kid]

Those are actually Metzler ME-33s, a.k.a. Lasers, or knockoffs of that series tire. Have you checked the date codes yet?

[FLHGSRay]

I do believe the original tires my '79 GS1000E came with were "Bridgestones" and were 3.50V19-4PR for the front and 4.50V17-4PR for the rear.

My '79 GS1000E is the same. Pretty sure my aluminum wheels are marked Tube Type. I really like the Bridgestone Battleax's on mine from MC Superstore. Put in new Fly Racing tubes also. Tire choices are limited by the 17" rear wheel.

[1980GS1000E]

I won't mention my tire choices but do run tubeless on the tube-type rims. Tubes are a pita.