Replacing original rear Master cylinder with A Brembo.
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- Posts: 9
- Joined: Mon Jun 30, 2014 1:54 pm
- Location: Elwood, In
- Motorcycle: 1980 GL1100 Goldwing
Replacing original rear Master cylinder with A Brembo.
So I gave it a valiant effort to repair and or replace my tired OLD original rear Master cylinder, NOT happening. Went to a well known 2nd hand cycle parts store and bought a gently used Brembo off a Yamaha. Different bolt pattern. I made a bracket out of some aluminum stock I had laying around. Just about to get it on the bike. Any suggestions or warnings would as always be appreciated.
- maintainer
- Posts: 291
- Joined: Sun Mar 22, 2015 11:39 am
- Location: Houston, Texas
- Motorcycle: 1977 GL 1000
1982 GL 1100 Interstate (Sold)
Re: Replacing original rear Master cylinder with A Brembo.
Color me, interested.
Post pictures
Please elaborate on the mod, sounds intriguing.
Post pictures
Please elaborate on the mod, sounds intriguing.
1982 GL 1100 Interstate SOLD
1977 GL 1000 Standard (naked can be good, who knew?)
1977 GL 1000 Standard (naked can be good, who knew?)
- ankgrays
- Posts: 171
- Joined: Fri Apr 25, 2014 9:09 pm
- Location: Central Iowa
- Motorcycle: 1981 GL1100 interstate
Re: Replacing original rear Master cylinder with A Brembo.
No advice, but VERY interested!!
I don't tolerate voluntary stupidity very well, and it seems to be rampant now-a-days.
Only a fool looks for logic in the chambers of the human heart.
Ulysses Everett McGill
Only a fool looks for logic in the chambers of the human heart.
Ulysses Everett McGill
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- Posts: 9
- Joined: Mon Jun 30, 2014 1:54 pm
- Location: Elwood, In
- Motorcycle: 1980 GL1100 Goldwing
Re: Replacing original rear Master cylinder with A Brembo.
Never posted pics on here but here goes nuthin.Cookindad wrote:So I gave it a valiant effort to repair and or replace my tired OLD original rear Master cylinder, NOT happening. Went to a well known 2nd hand cycle parts store and bought a gently used Brembo off a Yamaha. Different bolt pattern. I made a bracket out of some aluminum stock I had laying around. Just about to get it on the bike. Any suggestions or warnings would as always be appreciated.
- spiralout
- Posts: 1202
- Joined: Sun Feb 17, 2013 6:41 pm
- Location: Alabama
- Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE
Re: Replacing original rear Master cylinder with A Brembo.
Have you mounted this yet? Did the angle work out? What about the length of the push rod? Lots of questions! Post pics of it mounted, too, if you would.
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- Posts: 9
- Joined: Mon Jun 30, 2014 1:54 pm
- Location: Elwood, In
- Motorcycle: 1980 GL1100 Goldwing
Re: Replacing original rear Master cylinder with A Brembo.
Been working at my day job
all weekend, I hope to get it all put together Monday. As for the angle, it looks to be very close. I did have to use the original push rod to get the length I needed. I am cautiously optimistic. Victory shall be mine, Pics to follow.

- vtxcandyred
- Posts: 519
- Joined: Thu Dec 31, 2009 5:08 pm
- Location: Oregon, Ohio
- Motorcycle: 1993 Honda Goldwing SE
Re: Replacing original rear Master cylinder with A Brembo.
About the only advice I can think of is to be gebtle when you put the bike back on the road. I'm wondering WHAT could have been so wrong with the old one that you felt the need to go a different route instead of rebuilding. ???
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- Posts: 9
- Joined: Mon Jun 30, 2014 1:54 pm
- Location: Elwood, In
- Motorcycle: 1980 GL1100 Goldwing
Re: Replacing original rear Master cylinder with A Brembo.
Sorry to report this adaptor plate was an epic failure. Major clearance issues all around. I am not defeated, merely challenged!!!!
- spiralout
- Posts: 1202
- Joined: Sun Feb 17, 2013 6:41 pm
- Location: Alabama
- Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE
Re: Replacing original rear Master cylinder with A Brembo.
Maybe this will give you some ideas http://ngwclub.com/forum/viewtopic.php?f=24&t=44934
- LittleGoldy
- Posts: 85
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- Motorcycle: 1983 GL1100, 1982 GL100 Aspencade (parts bike, ugh got shafted on ebay) 1983 XJ750 Seca Sold, 2003 Kawasaki ZX1R Sold, 1980 GS750E Sold, 1973 Kawasaki H1 Triple 500 (first bike ever) Sold
Re: Replacing original rear Master cylinder with A Brembo.
Found a REAL Direct Replacement Rear Master Cylinder that is plug and play for the 80-83 Old Wing. Brass Body with 45mm mounting holes. Perfect for that project and the best part is the PRICE. No not 150.00, not 100.00 but basically 20 bucks. Down side is it comes from China. You can buy 2 of them for what the kit to rebuild your old one cost. I'm rolling the dice and will advise. For 20 smackeroo's ya just almost can't go wrong. Found a brand new Master Front cylinder same price roughly. Direct replacement. Down side........... if your proportioning valve is questionable (83 Model) you will have to revert to old style no linked brakes. The front is available as a 14 mm piston or 16 mm but the 16mm line mount is on front side. May have to adapt it if that's what you want.
For forty bucks I save 130-170 bucks over rebuilding what may be a questionable rebuildable part. I also consulted a few of the "experts" in Europe and they said the quality has vastly improved on these and they use them as direct replacements as well. Wanna spend a day ripping apart those old ones and rebuilding them? Think I will do that and save em for any anticipated problems. Hope all works out well and I will come back after install and test ride to evaluate.
For forty bucks I save 130-170 bucks over rebuilding what may be a questionable rebuildable part. I also consulted a few of the "experts" in Europe and they said the quality has vastly improved on these and they use them as direct replacements as well. Wanna spend a day ripping apart those old ones and rebuilding them? Think I will do that and save em for any anticipated problems. Hope all works out well and I will come back after install and test ride to evaluate.
You can do anything, but not everything.
Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
