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Main Area => General GS500 Discussion => Topic started by: Jerka on April 21, 2008, 07:26:03 AM

Title: Slapped some new rubber on this weekend...Roadriders
Post by: Jerka on April 21, 2008, 07:26:03 AM
I just had some Avon Roadriders installed this weekend and daddy likey.  I went with the 110/80 and the 140/70.  Maybe it is because my stock rear tire was worn into a square, but the bike is riding 1 or 2 inches higher now in the rear.  Anyway, so far so good with these tires.  I'm taking my time getting to the edges but the grip and the ride quality are a vast improvment over my 10-year-old stock Excedras.
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: bucks1605 on April 21, 2008, 07:32:01 AM
I put the roadriders on last fall. I went with the 110/70 for the front, and so far I'm extremely happy with it.
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: gsJack on April 21, 2008, 08:31:45 AM
I used the 140/70 rear because it is now sized for a 3.75" wheel so it's an equally good fit on the 3.5" and 4.0" wheels.  The 140/70 previously had a preferred rim width of 4.0".

I use the 110/80 front now mostly because my local supplier has the 110/70 tires when something new comes out and then drops that size the next year from stock.  Besides the 110/80 gives a more accurate speedo reading on the GS than the 110/70 does and I really don't notice the difference in handling.  My Lasertec fronts were 110/80 too.

Son JP put on the oem 110/70 and 130/70 size Roadriders on his GS, not really that much different.  The 140/70 looks a tad better too, not a good reason for choosing a different size though.   :laugh:

The 140/70 AM26 is only 1/4" taller than the 130/70 so allowing for another 1/4 difference in tread depth from worn out to new, the bike should only be 1/2 taller at best.

I frequently read IMs late at night and wait till morning to answer and completely forget them, another senior moment, sorry Jerka.   :oops:
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: Jerka on April 21, 2008, 08:52:31 AM
Quote from: gsJack on April 21, 2008, 08:31:45 AM
I frequently read IMs late at night and wait till morning to answer and completely forget them, another senior moment, sorry Jerka.   :oops:

No Problem.  My grandparents do that kinda stuff all the time.   :laugh:

It might only be 1/2" more height on the rear, but the bike feels like it is a lot more than that.  I like it either way.
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: scottpA_GS on April 21, 2008, 02:37:28 PM

i have em as well  :thumb: Love em  O0

Thanks again GSJack  :icon_mrgreen:
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: ohgood on April 21, 2008, 05:11:06 PM
Quote from: Jerka on April 21, 2008, 07:26:03 AM
I just had some Avon Roadriders installed this weekend and daddy likey.  I went with the 110/80 and the 140/70.  Maybe it is because my stock rear tire was worn into a square, but the bike is riding 1 or 2 inches higher now in the rear.  Anyway, so far so good with these tires.  I'm taking my time getting to the edges but the grip and the ride quality are a vast improvment over my 10-year-old stock Excedras.

pics ? more than one view ? :)
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: Topnikko on May 20, 2008, 12:52:38 PM
For the Roadriders, the recommended sizes are for front 110/80-17 and for rear 140/70-17. Is that correct?
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: bucks1605 on May 20, 2008, 12:54:36 PM
Quote from: Topnikko on May 20, 2008, 12:52:38 PM
For the Roadriders, the recommended sizes are for front 110/80-17 and for rear 140/70-17. Is that correct?

I put a 110/70-17 on the front, but that was just because it was the stock size. An 80 would be slightly taller, correct?
Title: Re: Slapped some new rubber on this weekend...Roadriders
Post by: ATLRIDER on May 20, 2008, 01:17:04 PM
Quote from: gsJack on May 19, 2008, 04:59:25 PM
Theoretically,

A 110/70 tire is 110 x 70% = 77 mm tall
A 110/80 tire is 110 x 80% = 88 mm tall
A 120/70 tire is 120 x 70% = 84 mm tall
A 120/60 tire is 120 x 60% = 72 mm tall

A 120 mm tire on a 3.00" rim is 115 mm wide, preferred rim is 3.50"
A 110 mm tire on a 3.00" rim is 115 mm wide, preferred rim is 2.50"

So theoretically a 110/80 is same width and a little taller than the 120/70 when mounted on the 3.00" GS front rim.  Actual dimensions vary a little for different makes and models of tires. 

First 110/80 I put on my 97 GS rubbed the acorn nuts on the 2 screws that held the mudguard on the fender.  I turned the screws around putting their flat button heads on the inside and the acorn nuts on the outside and had no further problems with 110/80 tires on the 97.  My 02 GS doesn't have the mudguard and has clearance for the 110/80 tires I've run.

I prefer the 110/80 tires to the 120/70/65/60 tires on the GS, makes the speedo more accurate.   :laugh:  But the 120's should fit mounted on the GS 3.00" rim.  Don't forget a tire is 5 mm or .2" wider or narrower when mounted on a rim that is 1/2" wider or narrower than the preferred or measuring rim specified by the tires maker.

This may explain your question.