GL1500 mounting a new rear tire


Information and questions on GL1500 Goldwings (1988-2000)
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97serider
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GL1500 mounting a new rear tire

Post by 97serider » Wed Sep 06, 2017 6:14 pm



I am replacing my rear tire and plan on trying to mount it myself. The new tire arrived today but has no balancing Mark to line up with the valve stem. Does this mean it can be mounted anywhere? The tire is an Avon Cobra. Thanks for any advice.



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MikeB
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Re: GL1500 mounting a new rear tire

Post by MikeB » Wed Sep 06, 2017 11:42 pm

Yes, you can mount it with the valve stem anywhere. Avon does not mark the tires. Presumably because they do not have a light side.
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Re: GL1500 mounting a new rear tire

Post by Wingsconsin » Thu Sep 07, 2017 9:29 am

regardless you should plan on some sort of balancing process -
When I had my 1500's I used balance beads inside the tires.
Easy and very effective. - Avon makes a great tire - but run them hard - at the MAX PSI listed on the sidewall cold.
You will like them and get great longevity as well as handling.
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


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97serider
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Re: GL1500 mounting a new rear tire

Post by 97serider » Thu Sep 07, 2017 5:11 pm

Ok, good to know, and yes I am doing the CB beads. Looks like 42 psi and currently running 39 psi in the front. I had E3 s and they cupped badly at 12k so I plan on running these on the max end. I am going to try pivoting the sub frame to gain the access to the rear like I saw in a video.

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Re: GL1500 mounting a new rear tire

Post by WingAdmin » Thu Sep 07, 2017 7:23 pm

I'm on my second (or is third?I forget) set of Avons on my GL1500. I run my front at 41 psi and my rear at 47 psi, cold.

Good luck getting that tire on the rim by hand. I struggle to do it with a pneumatic tire-mounting machine!

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Re: GL1500 mounting a new rear tire

Post by MikeB » Fri Sep 08, 2017 12:25 am

WingAdmin wrote:
Thu Sep 07, 2017 7:23 pm
I'm on my second (or is third?I forget) set of Avons on my GL1500. I run my front at 41 psi and my rear at 47 psi, cold.

Good luck getting that tire on the rim by hand. I struggle to do it with a pneumatic tire-mounting machine!
47 psi is a bit I would think. Doesn't the 180/60R16 Avon Cobra tire indicate 42 psi cold on the sidewall as the max pressure?
41 is the max cold pressure indicated on the sidewall for the front 130/70R18 Avon Cobra.
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ct1500
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Re: GL1500 mounting a new rear tire

Post by ct1500 » Fri Sep 08, 2017 8:14 pm

I would never exceed the sidewall stated maximum pressure, do that with a truck or tractor tire and you might be killed.
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bntyhntr6975
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Re: GL1500 mounting a new rear tire

Post by bntyhntr6975 » Fri Sep 08, 2017 8:32 pm

Zip ties and Dawn dish soap make it a lot easier. Also helps to set the tire out in the sun for a little while so its warmed up.

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bluthundr31
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Re: GL1500 mounting a new rear tire

Post by bluthundr31 » Sat Sep 09, 2017 2:33 am

What Avon Cobra tires are you, (WingAdmin & 97SERider), using for the rear?
Are they Bias, or Radials?

My '91 has Dunlop Elite II's still and should be changed. The rear is 160/80B16 75H and I'm having a bugger of a time finding that size Avon Cobra if its a radial. Is it a problem to go radial on front and bias on rear? I was hoping radials would give a smoother ride, and maybe a bit quieter.
I'll be adding the Dyna-Beads, or equivalent, to whatever I end up with.

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Re: GL1500 mounting a new rear tire

Post by dingdong » Sat Sep 09, 2017 6:48 am

As 47 lbs was recommended by Admin, I emailed Avon and they recommended 47 and 50 lbs for the rear venom.
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Re: GL1500 mounting a new rear tire

Post by ct1500 » Sat Sep 09, 2017 7:43 am

dingdong wrote:
Sat Sep 09, 2017 6:48 am
As 47 lbs was recommended by Admin, I emailed Avon and they recommended 47 and 50 lbs for the rear venom.
Why then stamp a lower maximum pressure on the tire? A litigators delight as something not right with that communication and might be a tire industry first. :lol: Go ahead and put a 100 in it for best fuel mileage all the sidewall information means nothing.
Last edited by ct1500 on Sat Sep 09, 2017 9:31 am, edited 1 time in total.
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MikeB
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Re: GL1500 mounting a new rear tire

Post by MikeB » Sat Sep 09, 2017 9:25 am

The Venom and the Cobra are two different tires by Avon. The Venom was the forerunner to the Cobra and the pressure indicated on the sidewall for the Venom was 50 psi.
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Re: GL1500 mounting a new rear tire

Post by cbx4evr » Sat Sep 09, 2017 8:23 pm

This is straight from Avons web site as to air pressure recommendations.

http://www.avonmoto.com/tech/

Touring Cobra Tires with bias belted reinforced construction*

Solo 2 up light 2 up heavy
Front 38-40 40-41 42-43
Rear 44 46 48-50

*Front MT90HB16, 130/80B17, 130/70HB18, 120/90H18
*Rear 140/90H15, 150/90HB15, 170/80HB15, MT90HB16
140/90HB16, 150/80HB16, 160/80HB16, 150/70B18
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

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MikeB
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Re: GL1500 mounting a new rear tire

Post by MikeB » Sat Sep 09, 2017 8:40 pm

The tire installers and riders generally go by what is on the sidewall of the tire. I guess what you're saying is now it is important for the tire installers and riders to cross reference what is on the tire sidewall versus what is on the manufacturer's website.

It almost sounds like that major tire manufacturer versus Ford Motor Company several years ago.
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Re: GL1500 mounting a new rear tire

Post by FM-USA » Mon Sep 11, 2017 8:25 am

Pneumatic tires are tested well over what's printed on the sidewall. UP TO ABOUT 2.5 TIMES OVER! But that is NEW & UNUSED tire.
Disbeliever? YouTube some, they're,... entertaining. ;)

You're safe with a few Lbs over, problems happens on worn tires. Many reasons.
I installed a new tire up front couple days ago. IT wanted the pressure of 55 Lbs to seat it's beads. Finished up the bike, closed the garage and headed out for a 'round the block' road test... a "3 HOUR TOUR" road test.
MM-mmm, nothing like the feel of a smooth, round, UNcupped front tire. Bike felt like it had Power Steering :shock: . Returned home, dropped the 55 psi to 46. Sidewall wanted 41 psi.
____________________________________________________________________________________

Another notes.
High mileage contests riders will UP their pressures WAY UP to around 80-120 Psi.
Those skinny and very thin walled bicycle tires call for 120 Psi.
___ I'M NOT SAYING IT'S SAFE... JUST mentioning.
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Re: GL1500 mounting a new rear tire

Post by WingAdmin » Sun Sep 17, 2017 9:02 pm

MikeB wrote:
Fri Sep 08, 2017 12:25 am
WingAdmin wrote:
Thu Sep 07, 2017 7:23 pm
I'm on my second (or is third?I forget) set of Avons on my GL1500. I run my front at 41 psi and my rear at 47 psi, cold.

Good luck getting that tire on the rim by hand. I struggle to do it with a pneumatic tire-mounting machine!
47 psi is a bit I would think. Doesn't the 180/60R16 Avon Cobra tire indicate 42 psi cold on the sidewall as the max pressure?
41 is the max cold pressure indicated on the sidewall for the front 130/70R18 Avon Cobra.
As mentioned by others, that's within the limits for the tire published by Avon. It's a pressure that I have worked out that works well for me, for the type of riding I do, with the load I normally carry. I watched the wear pattern on my tire over time and made adjustments as I saw fit. I've been using those tires for many years now, and 47 works very well for the rear for me.

41 would definitely be way too low for me, with the weight of the 1500 on it. Too much sidewall flex, and too much heat as a result.

Much above 49 or so and I start getting excessive wear in the middle of the tire with reduced wear toward the edges.



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