GL1100 aspy front brake rotors


Information and questions on GL1100 Goldwings (1980-1983)
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roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
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GL1100 aspy front brake rotors

Postby roadwanderer2 » Mon Aug 26, 2013 8:04 am



well, heres another job to do..........had to replace the left front brake pads yesterday because they were down to the metal and just starting to scrap the rotor, and i noticed that both front rotors are looking kinda thin, now my repair manual shows NONvented rotors for the 80-83 GL1100 aspy, but i need to know what the discard specs are for the VENTED rotors. does anybody here know what the discard specs are for an '83 aspy with vented front rotors?

please reply,

thanks,

stuart, a.k.a. roadwanderer2.



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David-Mantle
Posts: 87
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Location: Grimsby , England - United Kingdom
Motorcycle: 1983 GL1100AD
1980 CB400N

Re: GL1100 aspy front brake rotors

Postby David-Mantle » Mon Aug 26, 2013 8:55 am

I think it should be 9mm or .35 inch
The only silly question is the one you don`t ask. Everything else is game.

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roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
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Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Mon Aug 26, 2013 11:46 am

hey mantle:

thanks for the reply, i know its 9.0mm, but does that include the 83 aspy's? or the ones without the vented rotors. see, thats my problem, my repair disk dosnt show anything about vented rotors, only the "pancake" type. im thinking i might wind up having to call the honda motorsports company in california and ask them which ones that measurement is for. if what i read was correct, the left rotor is at 9.02mm and the right rotor is at 9.08mm, so i think they both need to be replaced soon. havent checked out what the rear rotor is, i'm gonna do that later today.

BTW, if any of you folks need to find out things about your GL's, (including any safety recall issues), heres the toll free # for honda motorsports in california......
1-866-784-1870.......just follow the promps and you'll get to a LIVE person that can help you. these people are very helpfull, you have no idea how many times ive called them to find out things to help me with my 81 honda GL500i silverwing interstate and some of my other bikes.

stuart, a.k.a roadwanderer2.

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David-Mantle
Posts: 87
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Location: Grimsby , England - United Kingdom
Motorcycle: 1983 GL1100AD
1980 CB400N

Re: GL1100 aspy front brake rotors

Postby David-Mantle » Mon Aug 26, 2013 2:32 pm

Vented rotors - I own a GL1100AD of 1983 vintage and I just measured my rotors as a matter of reference. They are 10.5 mm with no noticeable wear ridge. Hope this helps you.
The only silly question is the one you don`t ask. Everything else is game.

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roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
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Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Mon Aug 26, 2013 3:53 pm

hi mantle:

yes it does help for a point of refference, thanks very much....i called the honda motorsports company, even they couldnt give me an answer, so im taking the bike to my local honda powersports dealer tomorrow, (most bike shops are closed on monday's here which sucks), and get the specs from someone that knows exactly what they're supposed to be. when i find out, i'll post them here so you and anyone else that needs to know will have them.

stuart, a.k.a. roadwanderer2.

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roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
Contact:

Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Tue Aug 27, 2013 7:31 pm

David-Mantle wrote:Vented rotors - I own a GL1100AD of 1983 vintage and I just measured my rotors as a matter of reference. They are 10.5 mm with no noticeable wear ridge. Hope this helps you.



hi david...well, today i took the bike to the honda dealer, i found out that the '82 and the '83 aspy share 2 different types of front rotors....finned and flat,(pancake) rotors. the finned rotors are an option for the aspy. we tried to get onto the honda schematics to see what the discard specs are, but they were doing some kind of site maintanence and we couldnt find out. im going to try again tomorrow and let you know what the discard, (throw away) specs are. either way, im going to have to purchase new rotors....need to take out a small loan to do it as they are VERY expencive lol.....from the dealer, they want $452.00 for ONE rotor. i found a pair of them new on ebay for $405.00 with free shipping. i think thats my best bet. a new back rotor is $253.00.....damn, i didnt know this bike was gonna be so expencive to repair, but, oh well, its worth it i suppose. i'll keep you posted once i find out more information.

stuart, a.k.a. roadwanderer2.

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David-Mantle
Posts: 87
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Location: Grimsby , England - United Kingdom
Motorcycle: 1983 GL1100AD
1980 CB400N

Re: GL1100 aspy front brake rotors

Postby David-Mantle » Tue Aug 27, 2013 11:35 pm

Found these on American fleabay - might be worth a look.
http://www.ebay.co.uk/itm/80-81-82-1983 ... 35c1779811
http://www.ebay.co.uk/itm/80-81-82-1983 ... 5aeb4b3d9f
If you look at one of the photos it clearly shows figure for minimum thickness.

These on UK site.
http://www.ebay.co.uk/itm/1983-Honda-GL ... 2ec9ed598c
The only silly question is the one you don`t ask. Everything else is game.

http://www.ngwclub.com/shoptalk/
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User avatar
roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
Contact:

Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Wed Aug 28, 2013 2:29 pm

hi david........didnt make it to the honda dealer today, but thanks for the links to those rotors, i took a look at them, the ad says "light surface rust", well if you zoom into the pics you'll see that the "light surface rust" is actually pit spots that are worn into the steel and can NOT be removed unless you have the rotors resurfaced, and even thats no guarentee that the rust pits will come out. im a retired auto tec and have a certification in brake work, so i know all about rotors on cars, trucks, suv's, but not on many bikes, but the same thing applies to rust and pit spots in this case......the 3rd set of rotors look to be in decent condition. im going to ask the seller what the transfer rate from british pound is to american dollar and see how much they come out to.

stuart, a.k.a. roadwanderer2.

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David-Mantle
Posts: 87
Joined: Thu Aug 08, 2013 2:33 pm
Location: Grimsby , England - United Kingdom
Motorcycle: 1983 GL1100AD
1980 CB400N

Re: GL1100 aspy front brake rotors

Postby David-Mantle » Wed Aug 28, 2013 2:53 pm

I hope it works out for you Stuart, good luck with the exchange rate. I have bought many things , wing related and other stuff , from the states and have always found it favorable.
The only silly question is the one you don`t ask. Everything else is game.

http://www.ngwclub.com/shoptalk/
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User avatar
roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
Contact:

Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Wed Aug 28, 2013 3:42 pm

hey david:

thanks again for that link, i'll keep you posted.......im glad to hear that you also had good luck buyings items from "across the pond" :)

stuart, a.k.a roadwanderer2.

User avatar
roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
Contact:

Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Fri Aug 30, 2013 5:00 am

good morning david:

to convert the price of these rotors and shipping cost, it comes out to roughly $145.00 US. i'll have to give that some thought and see if i can find them here in the states for around the same or less. we have a very well known bike salvage yard not too far from me that has a lot of goldwings, im going to take a ride to it today and see if i can find a good pair of rotors and remove them from the bike they are on.

stuart, a.k.a. roadwanderer2.

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David-Mantle
Posts: 87
Joined: Thu Aug 08, 2013 2:33 pm
Location: Grimsby , England - United Kingdom
Motorcycle: 1983 GL1100AD
1980 CB400N

Re: GL1100 aspy front brake rotors

Postby David-Mantle » Fri Aug 30, 2013 10:55 am

Hi Stuart , I hope you have good luck at the breakers yard. I have always found them to be good value whether from here in UK or using US yards . Over here we have quite a few autojumbles , not sure what you call them in states but they are places similar to "yard sales " where people rent stalls and sell their old bits and pieces. Sometimes it is possible to buy a complete car or motorcycle for silly money. I go to a couple of these each year and you never know what turns up . Bought a complete front end once , for a Suzuki GS650 , for £25 and it was in great shape. Fitted to the bike I had and sorted that particular problem for less than the price of a wheel that it needed. Only mentioned this cause it might be a useful source for spares that you might not of previously thought of.
The only silly question is the one you don`t ask. Everything else is game.

http://www.ngwclub.com/shoptalk/
http://yuq.me/users/24/690/5CwYRzT8lx.gif

User avatar
roadwanderer2
Posts: 4112
Joined: Thu Aug 08, 2013 4:03 am
Location: sweetwater, Tennessee
Motorcycle: 83 GL1100A aspencade, previously owned, 1981 honda GL500i silverwing interstate, 1974 yamaha xs400, 1974 Honda cb450 twin cam, 1983 honda vt30, 1982 honda 700 shadow, 1972 cb750four, and my first bike, a brand new 1982 honda CM400e. and a new to me 1986 GL1200 aspencade SEi
Contact:

Re: GL1100 aspy front brake rotors

Postby roadwanderer2 » Tue Sep 03, 2013 8:36 am

hey david;

over here, we call them "auto wreckers", "auto salvage yards" or just plain "junkyards". some "yards" you just ramble thru and bring some tools and take the parts off the vehicles yourself, those places are called "you-pull-it" salvage yards. its quite nice to be able to go thru them and find exactly what you need and get it yourself, that way, you not only take it off, but you can remember how you removed it so you can put it back together right the first time with no guess work. you can also buy complete vehicles here, but the prices im sure arent as cheap as you can get them across the pond. everything here is on the expencive side, but if you look and search hard enough, you can find things at good prices.

stuart, a.k.a. roadwanderer2.




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