Car tire


Information and questions on GL1200 Goldwings (1984-1987)
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gmonty
Posts: 15
Joined: Tue Feb 21, 2017 9:59 pm
Location: Nashville TN
Motorcycle: 1985 GL1200 Aspencade

Car tire

Post by gmonty »



For fear of starting an all out forum war I am wondering what ya'll have experienced or heard about putting car tires on gl1200's?

The reason I am looking at this option is that I tow a trailer on a daily basis for work(about 400 pounds loaded). I have had no problem with power or braking. Once I got the trailer tongue lengthened and the trailer stopped swaying I have never once felt unsafe.

The one thing I have noticed over almost 4k miles, the tire that was on the bike was about half used, is the tire is almost bald now. Considering that this is my "work vehicle" i want to find a solution as far as tires go that will last much longer than my current tire because time getting my tire changed is money.... and money spent on said task and the tire, is money.



User avatar
twocams
Posts: 677
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade ( sold in Canada), 2003 K1200GT BMW, 1969 R69S BMW,92 R100 RT BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Car tire

Post by twocams »

You know Im the guy that always feels sorry for the machine. Guess cause Ive worked on vehicles for some 55 yrs now.
But when someone takes an old bike that should be enjoying its retirement yrs and uses it for a work horse....makes me sad. :roll:
So your pulling 400 lbs + the 200 that you weigh. That,s say 600 lbs. That,s hard on the engine, transmission,differential, clutch and sounds like tires too. My advice, get a Can-Am Spider or a newer work horse. And enjoy the Wing after work.
Just go to the junk yard and pick up a used car tire for $5-10

twocams

User avatar
SilverDave
Posts: 566
Joined: Sun Aug 09, 2009 9:39 am
Location: Langley, BC
Motorcycle: 1985 GL1200 GoldWing Aspy

Re: Car tire

Post by SilverDave »

There are fitment issues with going DS with most car tires on a 1200 rim .. Car tires don't exactly fit .
Looks like the most successful have milled a few thou off the rim :

http://mcdarksiders.forumotion.com/t439 ... g-darkside
and
http://mcdarksiders.forumotion.com/t535 ... de-15-tire


There are also dangers of dark siding ANY motorcycle :

http://www.goldwingfacts.com/forums/5-g ... cycle.html
http://trafficsafe.org/index.php/traffi ... side-1683/
http://www.motorcyclecruiser.com/mounti ... -shop-talk

But many people do go Darkside... so " Its a free world " as long as you are aware of the pros and cons ..

Excellent engineering article here :
http://www.goldwingfacts.com/forums/10- ... -tire.html
<<< sadly Saunders site was recently hacked, and all the important diagrams about beads and rim angles are missing .
If Saunders site gets it fixed ... worth reading !! >>>

...( and once i used to ride with shorts and a light T on hot summer days , and now I am ATGATT with full body armour ... so I cannot criticize too much if you want to good darkside ..

Whatever you choose... Ride Safe !!!

SilverDave

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brianinpa
Posts: 179
Joined: Thu Mar 25, 2010 7:13 pm
Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Car tire

Post by brianinpa »

I have a 165/80 R 15 on my 87. Before that, the wheel and tire were on my 81, and before that the wheel and tire were on my 84 Standard. I have close to 13,000 miles on the tire with many more to go.

There are two ways to mount it... lots of lube with lots of air pressure (80+), or... remove some metal from the wheel. I machined some of the wheel to get the tire to seat the bead easier. I can do it with less than 40 PSI of air.
Brian

If you aren't having fun doing it, find something else to do.

User avatar
Ohara
Posts: 100
Joined: Mon Nov 16, 2015 9:05 am
Location: Ontario Canada
Motorcycle: 1986 Interstate
1986 Aspencade

Re: Car tire

Post by Ohara »

I am interested in dark siding my 1200's. Do you remember how much material you had to remove? Also which brand of tire are you using? Sorry to be a bother. Thanks.

User avatar
brianinpa
Posts: 179
Joined: Thu Mar 25, 2010 7:13 pm
Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Car tire

Post by brianinpa »

There is a ridge on the wheel that act like a bead lock. I had to remove that from both sides. There aren't many tires in that size. The brand is "Classic".

https://www.tirerack.com/tires/tires.js ... on&partnum
Brian

If you aren't having fun doing it, find something else to do.

User avatar
Ohara
Posts: 100
Joined: Mon Nov 16, 2015 9:05 am
Location: Ontario Canada
Motorcycle: 1986 Interstate
1986 Aspencade

Re: Car tire

Post by Ohara »

Thanks for the info,the price is right. :)

User avatar
Rusty Bike
Posts: 376
Joined: Sun Feb 28, 2016 1:55 pm
Location: New castle, PA
Motorcycle: 86 GL1200 SEi, 98 Valkyrie Std, 78 Yamaha XS750SE, 86 Honda XL125, 4.5 HP belt drive Minibike my dad built, foot clutch!

Re: Car tire

Post by Rusty Bike »

Car tires are very common on the Valkyrie board. A lot of riders run them.

gmonty
Posts: 15
Joined: Tue Feb 21, 2017 9:59 pm
Location: Nashville TN
Motorcycle: 1985 GL1200 Aspencade

Re: Car tire

Post by gmonty »

I am supposed to be getting my tire in today. I am in the process of taking the rear wheel off. I will post an update when I finish with the installation to let everyone know how it works out.

User avatar
twocams
Posts: 677
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade ( sold in Canada), 2003 K1200GT BMW, 1969 R69S BMW,92 R100 RT BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Car tire

Post by twocams »

I just hope you put tire and wheel in a cage or tie them down good while putting air in them. Did you see the man and his son lying on the floor of his shop. When they should have used a cage while inflating a truck tire. You could see the tire cage in the shop and both of them on the concrete floor dead in the news paper photo.
But thats OK your just grinding a little off a aluminum wheel and putting a tire on that dont fit :o Wonder how your bike acts at 75 MPH when the rear tire goes BAMM! No I dont care what ya do.

User avatar
brianinpa
Posts: 179
Joined: Thu Mar 25, 2010 7:13 pm
Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Car tire

Post by brianinpa »

Good to know you don't care. The feeling is mutual.
Brian

If you aren't having fun doing it, find something else to do.

gmonty
Posts: 15
Joined: Tue Feb 21, 2017 9:59 pm
Location: Nashville TN
Motorcycle: 1985 GL1200 Aspencade

Re: Car tire

Post by gmonty »

I can finally post my update. I decided to end up removing a small amount of material from the rim to get the tire on. I ended up buying a nexen 165 80r15. I have since put about 200 miles on the tire and could not be happier. It handles slightly differently at slow speeds but it feels planted. It has been raining for most of the miles and I can without a doubt say that it makes me much more confident in the rain. It is like night and day from riding in the rain on a motorcycle tire.

In general it handles just as well in the dry and better in wet conditions. It is slightly taller than the mc tire I had which I think makes the majority of the difference in the handling feel. It is a much smoother ride. The enlarged contact patch is confident inspiring in all conditions. Over all I think it has been worth it.

User avatar
paneled
Posts: 73
Joined: Thu Sep 17, 2015 8:33 am
Location: kansas city mo
Motorcycle: 1986 Goldwing 1200 aspencade sei

Re: Car tire

Post by paneled »

thanks for the update of how it handles and feels compared to the
mc tire, and its performance in the rain.
it`s nice to hear a review on how it turned out instead of what
the rest of the motorcycling public thinks you should or should not
do with your own motorcycle, again thanks, convinced me on going
the dark side.
86 aspy sei
54 chevy panel truck
68 chevy van
69 chevy van
64 chevy van

User avatar
Rednaxs60
Posts: 2347
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2012 Suzuki DL1000 VStrom
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: Car tire

Post by Rednaxs60 »

I am a fan of a CT on these bigger touring bikes. HD used to have a CT installed right from the factory a few years back. A friend of mine installed a CT on his Triumph Rocket. He is very pleased with the ride and bike performance. As an older gentleman, his idea of scraping the pegs is if it falls over in the garage.

Another issue with the 1200 rear wheels is the bearing issue. A fellow over on the NGW forum looked into this and has determined that a 1200 rear wheel can be machined to take two wheel bearings similar to the 1500 model. Here is the forum thread: https://ngwclub.com/forum/viewtopic.php ... 27#p296127

Here are the pictures in question:

1200 rear rim machined to accept two bearings
1200 rear rim machined to accept two bearings


1200 rear rim with dual bearings installed
1200 rear rim with dual bearings installed

The premise behind machining for two bearings is quite good. With one bearing, only part of the rear rim hub supports the wheel. With two bearings installed, more of the rear rim hub is used - much like the 1500.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

gmonty
Posts: 15
Joined: Tue Feb 21, 2017 9:59 pm
Location: Nashville TN
Motorcycle: 1985 GL1200 Aspencade

Re: Car tire

Post by gmonty »

I would like to say that while I did get the tire on the 1200 wheel, if I were to do this again I would do the conversion to the 1500 rear end and wheel to save time. I would also still have a stock 1200 wheel if I ever wanted to go back to a smaller mc tire

User avatar
brianinpa
Posts: 179
Joined: Thu Mar 25, 2010 7:13 pm
Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Car tire

Post by brianinpa »

That's a benefit of having had several different 1200's. Spare parts are plenty... :D
Brian

If you aren't having fun doing it, find something else to do.

User avatar
AZgl1800
Posts: 2403
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800
2009 Piaggio MP3 250cc

Re: Car tire

Post by AZgl1800 »

SilverDave wrote:
Sat Aug 26, 2017 4:34 pm
There are fitment issues with going DS with most car tires on a 1200 rim .. Car tires don't exactly fit .


Excellent engineering article here :
http://www.goldwingfacts.com/forums/10- ... -tire.html
<<< sadly Saunders site was recently hacked, and all the important diagrams about beads and rim angles are missing .
If Saunders site gets it fixed ... worth reading !! >>>

SilverDave
Actually, the missing pix are unrelated to the "Hacking scare", of which, as the chief moderator, I have not heard of a single instance of a user's password being used by someone else.... be that as it may, the IT techs at Motorcycle.com decided to simply delete all passwords for us @#$%^
and that created one hell of a mess for me.

The pictures disappeared when Motorcycle.com purchased the Steve Saunders SSGWF website and then later they transfered the entire forum over to a different Operating System and new servers in their own neighborhood.

The conversion process was not without its' bit of confusion and a lot of upset users.... some left SSGWF and never came back. :(


~John

'02 GL1800
2009 Piaggio MP3 250cc

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