wanna 16" rear car tire stock swingarm


Information and questions on GL1100 Goldwings (1980-1983)
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82aspen
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wanna 16" rear car tire stock swingarm

Postby 82aspen » Wed Aug 27, 2014 2:28 pm



had a quick look and the brake bracket torque arm (?) takes a huge amount of space on the left, don't see a huge problem modding that for space,

right side is very close to the swingarm with the stock 140/16 tire, dunno if a big deal using a spacer on that side to move the wheel the other way?

here's some relevant info, mainly the harley starting with a 150 m/c tire going with a 175 car tire
http://www.advrider.com/forums/showthread.php?t=816019

http://www.advrider.com/forums/showpost ... ostcount=6



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HawkeyeGL1200
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1981 GL1100 Interstate

Re: wanna 16" rear car tire stock swingarm

Postby HawkeyeGL1200 » Thu Aug 28, 2014 12:15 pm

I have been told a car tire won't fit a GL1000, GL1100 or a GL1200 due to the rim width.

I apologise in advance if I am wrong. I looked into getting a car tire to put on the back of my 1200, and gave up shortly after beginning my search because I didn't know what I was doing... and I couldn't find anyone else with a car tire on the same model bike I have...

I'm still interested in seeing if one can be used, but not sure if I'd go to the truoble unless it was SIMPLE to do it.
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

moritz1100
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Re: wanna 16" rear car tire stock swingarm

Postby moritz1100 » Thu Aug 28, 2014 1:44 pm

Yup, the rim width is slightly different, meaning a car tyre wont seat properly. You may be able to get around that by running it tubed instead of tubeless. First try to find a 135/90 16 tyre. Few and far between.
I had a sidecar on my 11 for years and ran it on 15" car tyres. Those wheels were constructed by unbolting the comstar hubs then mating them to 15" steel rims using steel plate discs welded at the rim and bolted at the hub. That's imo the best option if you're dead set on running car tyres. If you've got a sidecar.. If not then I can't see why you'd want to do that to your bike.

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WingAdmin
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Re: wanna 16" rear car tire stock swingarm

Postby WingAdmin » Thu Aug 28, 2014 1:45 pm

HawkeyeGL1200 wrote:I have been told a car tire won't fit a GL1000, GL1100 or a GL1200 due to the rim width.

I apologise in advance if I am wrong. I looked into getting a car tire to put on the back of my 1200, and gave up shortly after beginning my search because I didn't know what I was doing... and I couldn't find anyone else with a car tire on the same model bike I have...

I'm still interested in seeing if one can be used, but not sure if I'd go to the truoble unless it was SIMPLE to do it.


It's not the rim width that is the issue - it's the width between the swingarm arms. There is (currently, to my knowledge) no car tire that has the correct inner and outer diameters, and is also narrow enough to fit inside the swingarm of the GL1100.

moritz1100
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Re: wanna 16" rear car tire stock swingarm

Postby moritz1100 » Thu Aug 28, 2014 1:50 pm

There's a 135/90 16 tyre on the bay of e but I wouldn't ride on it. Looks like a trailer tyre from 1980.

moritz1100
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Re: wanna 16" rear car tire stock swingarm

Postby moritz1100 » Thu Aug 28, 2014 1:53 pm

You'd probably get 50'000 miles out of it though.

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82aspen
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Re: wanna 16" rear car tire stock swingarm

Postby 82aspen » Thu Aug 28, 2014 2:35 pm

i am certain 1200 rear car tire has been done and covered, there are some 15" rim fitment issues

i am also certain of at least one 1100 stock swingarm fitment but it involved a custom purpose made 15" wheel that i doubt went anywhere cos last i heard they went for ~1k, also, dunno if the folks are still around but i could prob dig up the prior info and pix

it is possible to swap to a 1200 swingarm, and even using a 1500 wheel, but that involves way more work and i'm looking for the easiest and cheapest way to go about it

it should also be clear i'll be focusing on the 82-3 1100 swingarm cos it is somewhat wider than 80-1

it is also possible to convert a comstar wheel to spokes and going to a 15" wheel, hence using a car tire but that won't be my focus

i'd like to ask a mod to change the subject to 'gl1100 wanna 16" rear car tire stock swingarm' for easier and more accurate googling for folks who may be interested

edit- here's the info on the one off 1k wheel deal, can't see the pix though unless a member
http://www.classicgoldwings.com/forum/v ... =18&t=2907
While my bike is at C Stanley Motorsports I decided to have Harry Tarzian make one of his custom 15" rear wheels for my GL1100A so I could use a car tire on the rear to maximize tire life while running a side car. Harry is the only one in this country that makes a 15" wheel conversion for the 1100 Goldwing. He uses a Centerline 4" rim, the center section of a Comstar wheel and then custom machines the wheel centers in his shop. Tire wear goes from 3-5000 miles for a motorcycle rear tire to 15-30,000 miles for a car tire. The workmanship is unbelievable.


here's a mod i've come across as a way of dealing with the stock brake torque arm, at a quick glance, looked like that would provide ~ 1" additional tire clearance space on the let side
http://cx500forum.com/forum/cx-customiz ... html#post3

http://cx500forum.com/forum/attachments ... c04283.jpg

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redbug
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1986 Harley FLHT

Re: wanna 16" rear car tire stock swingarm

Postby redbug » Sat Jan 31, 2015 9:52 am

Try cokertire.com and see what happens


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