Replacing tires

[Big Red]

Hey everyone,

I am looking at replacing the old/cracked tires on my bike. One of the last things to do. also need to tune the carbs but everything else is working great so far.

the recommended tires for the bike are:
FRONT - 3.25H19-4PR
REAR - 3.75H18-4PR

I think this converts to 100/90-19 and 110/90-18 but not really sure and also wondering if anyone has a place with the best pricing? I am in Canada but have a place i can ship in the states then just have some friends bring them up for me next time they visit.

Also anyone in the area (Ottawa-west) have a carbtune they can help me with the tune of the carbs or lend me to do it. I have a few buddies that "have them" but for some reason can't locate them. right now i am using the bench sync. running not bad but far from great.

Thanks

[GateKeeper]

For tires - try here

http://www.petes-superbike.com/index.php

something like these

http://www.petes-superbike.com/sport-demon-c-2234_1_188_3417.html

.

[Big Red]

100/90 -19 M-CRUISER 777 FRONT
110/90V 18 F-230 FRONT (for the rear)

would these work for my bike?

[kdo58]

Do a search on shinko tires

[Big Red]

I have just looked at what is on the bike.
Rear: 120/80 v17
Front: 3.00 19

[Shwartz]

I have just looked at what is on the bike.
Rear: 120/80 v17
Front: 3.00 19

For what it's worth the current rear tire you have is too small according to what is supposed to be on there, so I wouldn't recommend using that as your guide.

That may throw off your gearing if I'm not mistaken.

[GateKeeper]

If I have it right, your stock tires are as follows

3.25-19 is equal to 100/90/19 for the front

4.50-17 is equal to 110/90/17 for the rear

you can go up one size if you wish so you could do it like this

front - 110/90/19
rear - 120/90/17

double check to make sure it will actually fit, you don't want them rubbing on the fork tube or the swing arm, or on anything actually.

but it is recommended to stick with the original size most times


hopefully I didn't mess it up or make a mistake in determining your needs, so please double check......

.

[Big Red]

The sizes that are stated in my owners manual for the 1980 GS550L are:
FRONT - 3.25H19-4PR
REAR - 3.75H18-4PR

this is why i am asking the question. how would a 17" tire fit on a wheel that is made for a 18" tire?

Gatekeeper, thanks for Petes looks like the place i need. I am looking at the Shinkos. Just need to figure out the proper size.

[GateKeeper]

something is not right,,,,,here it shows a 17 rear

http://members.dslextreme.com/users/storagecliff1/images/General_Suzuki_Specs.html

not a 18

don't know....

perhaps you have a 1979 model not a 1980 ?

.

[Big Red]

my Owners book does not determine a difference between years only 77-82 for the GS550. So i think the list you linked to would be a better source for the tire size and would explain why i currently have a 17" tire on there now.

[Guest]

Do a search on shinko tires

Check 'em out!

[Big Red]

I do plan in getting shinkos. And thanks to Gatkeeper I know the size I need!

[Rover]

The L models usually had a different rear tire size if I am not mistaken(from the standard model)

[Steve]

The L models usually had a different rear tire size if I am not mistaken(from the standard model)

True, but most of the Ls were 16". The '80 850L was an exception with a 17".

EDIT: I just looked at the fiche for the 550L and found that it is also a 17".

.

[Steel Toed Tank]

True, but most of the Ls were 16". The '80 850L was an exception with a 17".

EDIT: I just looked at the fiche for the 550L and found that it is also a 17".

.

750Ts are also 17" rear and 19" front.



I buy my tires at Sirius Consolidated Inc.
Best prices I could find in Canada, and $13 flat rate shipping anywhere in North America.