Car tire info gl1500


Information and questions on GL1500 Goldwings (1988-2000)
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Joe_
Posts: 37
Joined: Sat Aug 01, 2015 12:10 pm
Location: Northeastern WA
Motorcycle: GL1500 Aspencade 1991 Champion sidecar Daytona 2+2

Car tire info gl1500

Postby Joe_ » Sat Aug 01, 2015 3:45 pm



This is my first post here. I'm trying to get as much info as I can on running a car tire on my new to me wing so I have posted this on another wing forum too.

The bike is a 91 Aspencade with a large 2 passenger sidecar.
This bike can't fall over because of the sidecar. Running a car tire isn't ever an issue if it fits and seals up on these. I'm hoping to do it once right and not do anything wrong of course.


The aero dynamic drag with this sidecar at 70 is high.
Where it takes 10hp approx. to move the bike with passengers to 70, it takes 20hp to move the car with the bike even though the sidecar only adds 220#'s in weight to the total. The sidecar is a great air brake almost doubling the frontal area of the motorcycle.


This puts a lot of load on the older engine, clutch and transmission.
I am considering running 175/55-16 which will changes the gearing about 9% lowering the bike about an 1 1/4" in the process.
This means the motor will spin about 300 rpm faster at 70mph.
This should take some of the load off the motor at higher speeds. Hopefully this will put it further into the torque curve and allowing the use of OD more often and perhaps increasing the 25mpg gas mileage I am getting now as a bonus. I have never used a car tire before. Is there anything I am overlooking?


I read an article on darkside tires that had pictures of the difference between a car tire rim and a motorcycle tire rim. It appears that their are a couple of ridges in the flat of the rim that help lock the bead in place. A car tire does not seat properly on these beads on a motorcycle rim because they are placed differently for a motorcycle tire.
Do I need to remove these beads off the rim before I mount the tire?
Or does it work well either way? or is removing the beads not a good idea because even though they may not be ideally placed they still provide some function that out weighs their not being where they should be for the design of the bead?
I don't want to ruin the rim by removing the beads then find out it was the wrong thing to do.



Any advice from those who understand car tires on motorcycles would be greatly appreciated. Thanks in advance.



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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: Car tire info gl1500

Postby RoadRogue » Sat Aug 01, 2015 4:42 pm

Having run a couple of car tires for a number of years now I can tell you that they mount up just fine without modifying the rim at all. It is just as difficult to break the bead on a car tire as it is a bike tire. Remember these thing are made of "rubber" therefore they will mold themselves to any small differences in the rim. Do not madify your rim.
I have run the Austone Taxi tire,175r16, which is a taller tire han the stock bike tire, this gave me an even taller overdrive gear. Nice for open cruising but makes for slower throttle responses, more gearing down to make a quick pass. Pulling the trailer makes this even more noticeable.
Currently I have mounted a General Tire Altimax HP 195-55-16. Lower profile, smaller diameter tire. This make the over drive a bit shorter but more than makes up for it in improved throttle response, even when pulling the camping trailer. Surprisingly there seems to be no difference in gas mileage .
With the extra wieght and extra drag of the side car a smaller diameter tire than stock would help with your acceleration issues. However you should be aware of the lower ground clearance coupled with the exrta weight of the side car may cause some scraping of the under carrage in certain cases like speed bumps and road hazards.
Here is a pic of a Austone Taxi tire next to a bald Dunlop E3 and the General Tire I currently run.shows the difference in height and width of each one. I have personally run each of these tires on my own GL1500 so I know they fit. 8-)
Ride safe, Todd
Over night campers welcome

Joe_
Posts: 37
Joined: Sat Aug 01, 2015 12:10 pm
Location: Northeastern WA
Motorcycle: GL1500 Aspencade 1991 Champion sidecar Daytona 2+2

Re: Car tire info gl1500

Postby Joe_ » Sat Aug 01, 2015 4:48 pm

Thanks for the info. Your picture didn't post unfortunately.
I'd love to see it. Is there much room with the 195 tire in there?

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robb
Posts: 1040
Joined: Mon Jul 19, 2010 7:46 pm
Location: Lexington, North Carolina
Motorcycle: 1989 Honda GL1500 Aspencade

Re: Car tire info gl1500

Postby robb » Sat Aug 01, 2015 6:38 pm

Mounted a Goodyear 195/75-16 on my 89, seated with 25 psi. Tire is 1.75" taller than stock and like said it takes away from acceleration but it runs 400 rpm lower at 75 mph. Had a 175/60-16 on the 94 and at 1.5" shorter rpm was 400 more but it was a rocket. I have just finished break in process with my car and will swap rear from 195 to a 175 on the 89 to compare data. With taller tire a good highway run was in 50 mpg range, shorter was good for 40-45 mpg for an overall rating. I'm short and after 4 strokes the shorter tire will allow me to continue safely riding. Sold the 94 to a shorter rider who loves it.
The 175 tire is a Goodyear Assurance Fuel Max. When I put one on the 94 I bought a used tire with 7/32 tread left. It has since seen near 35k miles and has 3/32 tread left. We will soon replace his rear with another 3k mile broke in tire from my Del Sol. Have tried new but find it a 3k tire safer and easier to mount.

Forgot to add a pic of taller vs stock vs shorter.

http://s45.photobucket.com/user/vstar10 ... a.jpg.html

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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: Car tire info gl1500

Postby RoadRogue » Sat Aug 01, 2015 11:27 pm

Having trouble posting thhe pics tonight, will try later.
There isnt much room with the 195 in there but nothing rubs anywhere. 8-)
Ride safe, Todd
Over night campers welcome

Joe_
Posts: 37
Joined: Sat Aug 01, 2015 12:10 pm
Location: Northeastern WA
Motorcycle: GL1500 Aspencade 1991 Champion sidecar Daytona 2+2

Re: Car tire info gl1500

Postby Joe_ » Sun Aug 02, 2015 2:05 am

Thanks guys.
Seeing the difference in size I think I will start with the 175/60-16
I think it will get me what I want.

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newday777
Posts: 507
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH and Oceanside, CA (N San Diego)
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry to sell 36,000 miles

1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Car tire info gl1500

Postby newday777 » Sun Aug 02, 2015 6:13 am

Welcome to the forum Joe_

As the others have said CTs mount up without problems to the GL1500 rims.
If you use a 4 ply sidewall tire you will find you get wandering on grooved pavement surfaces. Try to find a run on flat if possible. I've been away from the 1500s a couple years now but ran a couple on mine. Tires available in that size are very limited especially stiff sidewalls.
Having riden a few sidecar rigs, I realize the need of a CT on your bike.
I have a 175/75r16 Vredestein(discontinued, same mounted diameter size as E3s) mounted in my storage in CA but I'm not back there until Nov.

Joe_
Posts: 37
Joined: Sat Aug 01, 2015 12:10 pm
Location: Northeastern WA
Motorcycle: GL1500 Aspencade 1991 Champion sidecar Daytona 2+2

Re: Car tire info gl1500

Postby Joe_ » Sun Aug 02, 2015 12:41 pm

newday777 wrote:Welcome to the forum Joe_

As the others have said CTs mount up without problems to the GL1500 rims.
If you use a 4 ply sidewall tire you will find you get wandering on grooved pavement surfaces. Try to find a run on flat if possible. I've been away from the 1500s a couple years now but ran a couple on mine. Tires available in that size are very limited especially stiff sidewalls.
Having riden a few sidecar rigs, I realize the need of a CT on your bike.
I have a 175/75r16 Vredestein(discontinued, same mounted diameter size as E3s) mounted in my storage in CA but I'm not back there until Nov.


I hope that I didn't make a mistake but ended up buying a 175/60r-16 studless snow. It was either that or a high fuel efficiency tire. There were some really inexpensive federal tires available on amazon but since I had never heard of the name and the price was very low, I passed. I guess I will know if I made a mistake soon. The hack has a radial Vredestein on it. Hopefully it will go down the road straight and smooth. The tire was on sale as well as a name brand so if I am unhappy with the size and want to go smaller I am not out quite as much.

Btw thanks for all the help everyone. It is really nice that their are people in the world that are willing to help complete strangers.
I certainly wouldn't want to try to figure all this stuff out myself.

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newday777
Posts: 507
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH and Oceanside, CA (N San Diego)
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry to sell 36,000 miles

1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Car tire info gl1500

Postby newday777 » Sun Aug 02, 2015 5:41 pm

The 3rd wheel of the hack may help remove the following of the grooves experience on 2 wheels..

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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: Car tire info gl1500

Postby RoadRogue » Tue Aug 04, 2015 12:10 am

Going to try again tonight ........
IMG_1027.JPG

Nope just keep getting tbis message when I try to post any pic.
General Error
SQL ERROR [ mssqlnative ]

SQLSTATE: 22003 code: 8115 message: [Microsoft][SQL Server Native Client 11.0][SQL Server]Arithmetic overflow error converting expression to data type int. SQLSTATE: 01000 code: 3621 message: [Microsoft][SQL Server Native Client 11.0][SQL Server]The statement has been terminated. [3621]

An SQL error occurred while fetching this page. Please contact the Board Administrator if this problem persists.
Ride safe, Todd
Over night campers welcome

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redial
Posts: 1993
Joined: Mon Jan 03, 2011 1:17 am
Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: Car tire info gl1500

Postby redial » Tue Aug 04, 2015 1:51 am

Hey Todd,
Scott says he will be away for a while, so it might be a while for a response.
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

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robb
Posts: 1040
Joined: Mon Jul 19, 2010 7:46 pm
Location: Lexington, North Carolina
Motorcycle: 1989 Honda GL1500 Aspencade

Re: Car tire info gl1500

Postby robb » Tue Aug 04, 2015 7:41 am

RoadRogue wrote:Going to try again tonight ........


I have never been able to post a pic here so I just post a link.

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FM-USA
Posts: 2007
Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
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ANTAGONISTS need not post.
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==================

Re: Car tire info gl1500

Postby FM-USA » Wed Aug 05, 2015 3:03 pm

RoadRogue wrote:Going to try again tonight ........
IMG_1027.JPG

Nope just keep getting tbis message when I try to post any pic.
General Error
SQL ERROR [ mssqlnative ]


If your using Microsoft OS, open the pix in Bitmap and save as a different name.
I have this issue also and this always works.
ALSO,
You may have security settings not allowing certain things to happen.
"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.

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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: Car tire info gl1500

Postby RoadRogue » Thu Aug 06, 2015 7:20 pm

FM-USA wrote:
RoadRogue wrote:Going to try again tonight ........
IMG_1027.JPG

Nope just keep getting tbis message when I try to post any pic.
General Error
SQL ERROR [ mssqlnative ]


If your using Microsoft OS, open the pix in Bitmap and save as a different name.
I have this issue also and this always works.
ALSO,
You may have security settings not allowing certain things to happen.




Thanks for the suggestion but this is an andriod based tablet that i have been using unchanged for the last two years. I really dont think the problem is on my end. Others are having problems posting pics as well. Im sure WingAdmin will fix it all up when he can. 8-)
Ride safe, Todd
Over night campers welcome

User avatar
FM-USA
Posts: 2007
Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
|
ANTAGONISTS need not post.
|
==================

Re: Car tire info gl1500

Postby FM-USA » Thu Aug 06, 2015 10:34 pm

Yaaaaa, you're probably right. I tried to post a pix also last night, NaDa.... same error.
"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.

User avatar
Sidcar
Posts: 503
Joined: Thu Jul 05, 2012 3:07 pm
Location: Birmingham, England, United Kingdom
Motorcycle: 1991 GL1500/6 with Watsonian Oxford sidecar

Re: Car tire info gl1500

Postby Sidcar » Fri Aug 07, 2015 1:21 pm

I fitted an Austone taxi tyre to the rear of my GL1500/Watsonian Oxford rig (sidecars don't come much bigger or unaerodynamic than the Oxford) and apart from having to tie the plastic mudguard forward to stop it rubbing I've had no other problems. Much better grip, especially when it's wet.
The front tyre is coming up for replacement so I need to find a good replacement for that.

Sid

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newday777
Posts: 507
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH and Oceanside, CA (N San Diego)
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry to sell 36,000 miles

1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Car tire info gl1500

Postby newday777 » Fri Aug 07, 2015 1:38 pm

Avon has come out with a trike tire in the 130/70-18. It's a radial but will work on the 1500. We just put one on an 1800 trike today. No idea how they will work out yet.


Sidcar wrote:I fitted an Austone taxi tyre to the rear of my GL1500/Watsonian Oxford rig (sidecars don't come much bigger or unaerodynamic than the Oxford) and apart from having to tie the plastic mudguard forward to stop it rubbing I've had no other problems. Much better grip, especially when it's wet.
The front tyre is coming up for replacement so I need to find a good replacement for that.

Sid

User avatar
newday777
Posts: 507
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH and Oceanside, CA (N San Diego)
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry to sell 36,000 miles

1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Car tire info gl1500

Postby newday777 » Fri Aug 07, 2015 1:41 pm

http://cyclemax.com/inc/sdetail/gl1800_ ... 515/258116

it should work well with the hacks too.

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Sidcar
Posts: 503
Joined: Thu Jul 05, 2012 3:07 pm
Location: Birmingham, England, United Kingdom
Motorcycle: 1991 GL1500/6 with Watsonian Oxford sidecar

Re: Car tire info gl1500

Postby Sidcar » Fri Aug 07, 2015 1:50 pm

I've got about a thousand miles left on the front tyre so I would be interested to know how you get on with this Avon.

Sid

User avatar
newday777
Posts: 507
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH and Oceanside, CA (N San Diego)
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry to sell 36,000 miles

1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Car tire info gl1500

Postby newday777 » Fri Aug 07, 2015 2:07 pm

It's on a customer's bike

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Sidcar
Posts: 503
Joined: Thu Jul 05, 2012 3:07 pm
Location: Birmingham, England, United Kingdom
Motorcycle: 1991 GL1500/6 with Watsonian Oxford sidecar

Re: Car tire info gl1500

Postby Sidcar » Fri Aug 07, 2015 2:16 pm

Ain't it always the way, but if you do get any feedback.

Sid

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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: Car tire info gl1500

Postby RoadRogue » Wed Aug 12, 2015 8:14 pm

Just got a PM from WingAdimin saying he fixed the problem with posting pics so here I go again trying to show the three tires side by side.


Austone taxi tire, bald E3, and a General tire Altimax HP 195-55-16 8-)
Ride safe, Todd
Over night campers welcome

User avatar
FM-USA
Posts: 2007
Joined: Wed May 18, 2011 8:40 am
Location: USA-ILL-60085
Motorcycle: .
'91 GL1500-I (Dbl-Darkside)
Acquired:__51K_Jun_??/2007
MADE_IT!_200K_Oct_17/2016
iRide 24/365 99% SmileMiles
================
"You don't buy yourself a
HD to be SATISFIED,...
you buy it to keep your
HD friends PACIFIED."
================
|
ANTAGONISTS need not post.
|
==================

Re: Car tire info gl1500

Postby FM-USA » Wed Aug 12, 2015 8:28 pm

.


MMMMmmmmmm, I'm drooling over that Austone. ;)


.


"OIL CHANGE?" _FM 07-2009
Know its new taste and be loyal, you'll know when to change that oil.
Taste testing as the miles flow, souring as that acid grows.
And don't flirt with dirt or darkened oil, all the faster your engine will spoil.


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