Rear car tire for GL1500SE tug


Information and questions on GL1500 Goldwings (1988-2000)
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RockportDave
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Re: Rear car tire for GL1500SE tug

Post by RockportDave » Thu Nov 08, 2018 4:47 pm



There are a few folks running the 195/55-16 CT on their 1500’s with no problems. The originator of the thread, Elmobile” tried a 195/60-16 Yokohama and it was rubbing on the swing arm.
Glad I saw this because I too was going to try the Yoko 195/60.
I have a buddy running a 195/55-16 Bridgestone Turanza on his 2000 GL1500 with no problems.
Some will work on the 1500 and some will not.
Dave


1999 GL1500SE 5th Goldwing through the years

ETNTHEMADCHINAMAN
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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Thu Nov 08, 2018 5:35 pm

Well Crap. I just spent all afternoon Wrestling that 195 on the rim. I did take it out there and put the unmounted tire under the bike to see if it would fit. It was tight but it seemed to clear the swingarm. The only unknown I cant say is since the bike is up in the air if it was sitting on the ground if the tire would scrub the lip of the finder. I thought I was doing good about making sure I reasearched everything I dont know how in the world I missed that. Thank you AZgl1800 for the information..
Last edited by ETNTHEMADCHINAMAN on Thu Nov 08, 2018 5:42 pm, edited 1 time in total.

ETNTHEMADCHINAMAN
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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Thu Nov 08, 2018 5:40 pm

Thanks Dave for your input as well. I guess I will just have to slap it on there and see if it works. I sure hope so because I have already spent more money on putting a tire on the bike doing it myself just by messing up a tire already. The first one I ordered I broke the bead trying to force it on the rim. I was able to turn the unmounted tire between the swing arm I dont know if that tells me much I was just curious while i was waiting on the new tire to get here. I did measure the new tire once it was on the rim and it being mounted did make it a bit slimmer. I could just be wishful thinking when I read the tape measure but it appears off the rim in was close to 9 inches wide and on the rime 7 and a half inches. By the time I got done wrestling the tire my brain could be scrambled though. Again thanks for everyones input.

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Re: Rear car tire for GL1500SE tug

Post by WingAdmin » Thu Nov 08, 2018 9:36 pm

You might get it to fit the tire between the swingarm legs, but once it is mounted and inflated, chances are the tire will either rub badly, or be wedged in there solid and will not move.

I (and many others) run the Austone tire with very good results.

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Alan_Hepburn
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Re: Rear car tire for GL1500SE tug

Post by Alan_Hepburn » Fri Nov 09, 2018 12:47 pm

I went through this a few months ago - researched it for weeks and decided that a Kumho PA31 in 195/60R16 was the tire to try, so I got one online for around $78 or so. When it arrived I started disassembling the back end of the bike. I was ready to mount the tire and decided to try and fit the tire into the fender before going to the trouble of mounting it - surprize, surprize: it didn't fit! Grabbing my trusty tape measure I checked some measurements: the opening in the swing arm where the tire goes is about 185 mm across: it's very unlikely that a tire with a cross-section measurement of 195 mm is going to fit in an opening of 185 mm!

So, I bit the bullet and ordered the Austone tire - more money than I was planning on spending, but it fits in there like it was made for it! Now I've got an unused Kumho PA31 in 195/60R16 sitting in my garage, waiting for someone to make me a decent offer on it...
Alan Hepburn - San Jose, Ca
1994 GL1500SE with a California Sidecar

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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Tue Nov 13, 2018 2:29 pm

Yup you guys were right. It did fit. I got it on the rim and on the bike. No scrubbing issues until I got the axle in. It only seems to be scrubbing on the right hand side though like the tire isnt centered in the swing arm. I checked my spacer and made sure it was in the right way not that it will go any other way but hey I have been known to do some messed up stuff before. I am really frustrated at this point. Thanks everyone who has given advice on this subject I really appreciate it.

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Elmobile
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Re: Rear car tire for GL1500SE tug

Post by Elmobile » Wed Nov 14, 2018 7:00 am

Hi there... I share your frustration as I am in the same situation as you. You’re correct, The tire is not centred in the swing arm! So I do have now a brand new Yokohama Ascend in 195/55R16 for sale. It will fit nicely on a 1800. If you live in Nova Scotia, Canada and are interested, send me a pm :D
I did the same as Alan: I got an Austone tire. My project is still at a stand still but my hope is to complete it this winter.

Alan: I see that you have the same sidecar as mine. How does this tire affect the riding? I am thinking I may need some fork tube extensions to keep the bike level once I installed the SteerRite tree?
Does anyone would have a source for a set of 2 or 3” fork tube extensions?

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Alan_Hepburn
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Re: Rear car tire for GL1500SE tug

Post by Alan_Hepburn » Wed Nov 14, 2018 1:04 pm

Elmobile wrote:
Wed Nov 14, 2018 7:00 am
Alan: I see that you have the same sidecar as mine. How does this tire affect the riding?
Truthfully, I don't notice any major changes from the old Dunlop Elite II tire that was on the bike. The bike still sits level as best as I can tell, although I never thought to actually measure before and after ground clearance. Cruising at 65 mph I'm seeing just under 3000 rpm, and we get a fairly steady 32 mpg at that speed. There might be a bit more rear grip on braking, but other than that it just feels like a motorcycle with a sidecar. If the reports of long life are true then I expect the tire will outlive me!
Alan Hepburn - San Jose, Ca
1994 GL1500SE with a California Sidecar

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Elmobile
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Re: Rear car tire for GL1500SE tug

Post by Elmobile » Wed Nov 14, 2018 2:19 pm

Thank you for the reply, Alan.
Good to know that there is no noticeable riding changes. My worry about keeping the bike level, is that I will replace the triple tree with a "6Deg" one to reduce the rake. Doing so with the original fork tubes will lower the font end by 1/2 inch. The Austone will raise the rear end by about 1/2" as well...
Probably over-thinking it... :shock:

Cheers.

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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Sat Nov 17, 2018 3:17 pm

Update: THanks for all that replied .. Althought I wanted to order an Austone After alreadying paying for two tires I did not have the extra cash to order that one with the holidays coming up. What I did get was federal 175/60/15 https://www.amazon.com/gp/product/B06XK ... UTF8&psc=1

No issues mounting it as I had with the 195 no rubbing issues at all. Keeping her brithches off I roade it up the highway and back home to test out how it felt. I did notice what I percieve to be a tiny bit of wash out in the curves but that could just be because its a brand new tire I will update when I put some more miles on it. Other than that the one major thing I noticed and this could just be in my head was the bike seemed to pick up faster on take off. The other thing I noticed is in the curves when you go into the curve it feels pretty normal but coming out of the curve it feels like the bike launches itself.. That part I actually liked as it felt better than having to heft it back out of the lean. I dont know if this is normal as this is the first Goldwing I have owned and first tire change i have had to do. Here are some pictures and sorry about the quality I am not a photogropher.








You can See on the frame where the 195 was rubbing and how much space of clearence there is with the 175

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Re: Rear car tire for GL1500SE tug

Post by bellboy40 » Sat Nov 17, 2018 3:36 pm

According to my calculations, that tire is about .9 inch shorter than the stock tire and it travels forward about 5.7 inches less per revolution of the tire than stock. So yes, you should feel some quicker acceleration with that tire on there. You will notice that you are turning more rpms at any given speed than with your stock tire.

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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Sat Nov 17, 2018 4:22 pm

Thanks Bellboy40.. I did notice that on the highway. I was only able to get it up to about 80mph because its game day here in TN so I was being mindful of Law enforcement around so I didnt test it on up in the higher speeds its also a bit windy here today so I dont feel I got a real accurate feel of what the tire was doing as apposed to the riding conditions themsevles. Because its a car tire is it approriate to run the car tire pressure of 32 or do I need to run more air? I wasnt sure if this was causing that slight wash out feeling in the curves and I did not want to overinflate the tire.

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Re: Rear car tire for GL1500SE tug

Post by bellboy40 » Sat Nov 17, 2018 4:46 pm

I don't run a car tire on mine so I don't know about that. I have read on here where a lot of the guys that do run them are running around 40 psi in them. One way to tell would be to get the tire wet and see what the track looks like. Or maybe put a chalk mark across it and see what it looks like after riding a short distance. If you are getting a good tire track that looks like it is all the way across the tire, you are in the ballpark. If it is just in the center of the tire, you have too much air in it. Anyway, that is my thoughts.

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Re: Rear car tire for GL1500SE tug

Post by ETNTHEMADCHINAMAN » Sat Nov 17, 2018 11:36 pm

That makes sense. Thank you for the info Bellboy40

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Re: Rear car tire for GL1500SE tug

Post by minimac » Mon Nov 19, 2018 10:39 am

The reason I went for the Austone was the fact that although it was a radial, it has stiff sidewalls and carries a superior load rating. Most people I know of, that run the Austone, run around 48# pressure. On your tire, too low a pressure will cause it too "cave or belly in" in the middle slightly, so that you aren't getting the full benefit of the contact patch. In my experience it's better to be slightly over than under inflated. If you're feeling slightly "squishy" there isn't enough air. Under inflation builds heat and heat kills tires. BTW, I just changed my Austone. I don't wait to hit the wear bars,and I had over 35,000 miles on it! I was turning 3K rpm@ 70mph indicated. Personally, I think a sixty series tire is too short-raising the rpms, especially at Interstate speeds.



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