http://www.ebay.com.au/itm/Honda-GL1000 ... 5d4d950477
75 GL1000 Rear Master
Moderators: Oldewing, CYBORG, robin1731, Forum Moderators
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olchris
- Silver Member

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- Joined: Sun Jan 11, 2015 6:05 am
- Location: Mandurah,Western Australia
75 GL1000 Rear Master
I looking for 2 "rebuild kits " for a 75 rear master Cylinder... I would have thought they would have been the same for all the GL1000's My both cylinders have a 14mm bore!!!, can anybody confirm that the cylinders changed from 77 thru to 78-9????? and if i ordered the below they wont "fit".... Is there anywhere else that i can purchase 75 rebuild kits from.... Thanks in advanve..
http://www.ebay.com.au/itm/Honda-GL1000 ... 5d4d950477
http://www.ebay.com.au/itm/Honda-GL1000 ... 5d4d950477
1972 Norton.. Rebuild from boxes.. http://www.accessnorton.com/strange-fra ... 44-60.html and here http://www.accessnorton.com/strange-frame-t18084.html SOLD
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
- scootsx2
- True Blue Steel Biker

- Posts: 2485
- Joined: Mon Jun 07, 2010 12:52 pm
- Location: St. Louis, Missouri USA
Re: 75 GL1000 Rear Master
Maybe K&L produces a rebuild kit.
1975 GL1000 Sidecar Outfit
1982 CX500-based Trident ex-Police Trike
2001 GL1800 MotorTrike
2006 Vespa LX150
1956 Francis-Barnett Falcon 74
195x Solex 1700
196x Solex 2200
St. Louis, MO
The dude abides.
Brothers of the Third Wheel - Gateway Chapter http://www.btw-trikers.org
Vintage Japanese Motorcycle Club http://www.vjmc.org
Francis-Barnett Owners Club http://www.francis-barnett.co.uk/
Antique Motorcycle Club of America http://www.antiquemotorcycle.org/
Vintage Motor Cycle Club http://www.vmcc.net
British Motorcycle Charitable Trust http://www.bmct.org/
VeloSolex Club UK http://www.velosolexclubuk.com/
1982 CX500-based Trident ex-Police Trike
2001 GL1800 MotorTrike
2006 Vespa LX150
1956 Francis-Barnett Falcon 74
195x Solex 1700
196x Solex 2200
St. Louis, MO
The dude abides.
Brothers of the Third Wheel - Gateway Chapter http://www.btw-trikers.org
Vintage Japanese Motorcycle Club http://www.vjmc.org
Francis-Barnett Owners Club http://www.francis-barnett.co.uk/
Antique Motorcycle Club of America http://www.antiquemotorcycle.org/
Vintage Motor Cycle Club http://www.vmcc.net
British Motorcycle Charitable Trust http://www.bmct.org/
VeloSolex Club UK http://www.velosolexclubuk.com/
- tomk1960
- Gold Member

- Posts: 1004
- Joined: Wed Aug 17, 2011 8:54 am
- Location: Worcester, MA
Re: 75 GL1000 Rear Master
Unfortunately, Mother Honda changed the rear masters in 1978. I know for sure that the 76 and 77 rebuild kits are part #43510-371-305 and '75 is most likely the same. K&L doesn't offer rear kits for these years, so your only choice is to order one from a Honda dealer, Service Honda, Western Honda, etc. Price will probably be in the $50 range shipped. At some point, Honda will stop offering the kits and hopefully K&L will by then. I think they actually did in the past, but discontinued them. Go figure.
Tom
Tom
1986 VFR750F Interceptor
1983 Honda CB1100F Super Sport - Red 1123 Resto-Mod
1978 Honda GL1000
1983 Honda CB1100F Super Sport - Red 1123 Resto-Mod
1978 Honda GL1000
- tlbranth
- Platinum Member

- Posts: 1638
- Joined: Mon Jan 28, 2008 12:16 am
- Location: carnation, wa
Re: 75 GL1000 Rear Master
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
-
olchris
- Silver Member

- Posts: 780
- Joined: Sun Jan 11, 2015 6:05 am
- Location: Mandurah,Western Australia
Re: 75 GL1000 Rear Master
tlbranth wrote:http://www.siriusconinc.com/pro-detail. ... uct_id=342
1972 Norton.. Rebuild from boxes.. http://www.accessnorton.com/strange-fra ... 44-60.html and here http://www.accessnorton.com/strange-frame-t18084.html SOLD
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
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olchris
- Silver Member

- Posts: 780
- Joined: Sun Jan 11, 2015 6:05 am
- Location: Mandurah,Western Australia
Re: 75 GL1000 Rear Master
HUh.. Local dealer wants Au$125 ~ US$83... keep searching for a while!!.... You could buy 5 complete M/C from Taiwan for the price of a few rubbers 
1972 Norton.. Rebuild from boxes.. http://www.accessnorton.com/strange-fra ... 44-60.html and here http://www.accessnorton.com/strange-frame-t18084.html SOLD
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
1975 Mk3 Norton.. Too good to mess with, but refurbished...
1975 Goldwing #1 SOLD
!975 Goldwing #2.. http://www.ngwclub.com/forum/viewtopic. ... 2+wing%232
1975 Goldwing #3... http://www.ngwclub.com/forum/viewtopic. ... =Wing+%233 Going very slowly but going forward..
- ericheath
- Honored Life Member

- Posts: 9615
- Joined: Wed Jul 29, 2009 11:20 am
- Location: Winnipeg, Manituba
Re: 75 GL1000 Rear Master
If not concerned with staying original, there are posts here on using an 1800 rear master on earlier bikes. Maybe they are more plentiful for parts there.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
- Sidecar Bob
- Honored Life Member

- Posts: 8195
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: 75 GL1000 Rear Master
Many of us are happily using front master cylinders from China/eBay that cost less than a kit to rebuild the old one would. I wonder if one of the rear master cylinders they are selling would be suitable?
http://www.ebay.ca/sch/Motorcycle-Parts ... =1000|1500 (scroll down)(change "ebay.ca" to "ebay.com" or "ebay.com.au" or whatever your local eBay is)
http://www.ebay.ca/sch/Motorcycle-Parts ... =1000|1500 (scroll down)(change "ebay.ca" to "ebay.com" or "ebay.com.au" or whatever your local eBay is)
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
- tlbranth
- Platinum Member

- Posts: 1638
- Joined: Mon Jan 28, 2008 12:16 am
- Location: carnation, wa
Re: 75 GL1000 Rear Master
China? Brake parts? Not me mate.Sidecar Bob wrote:Many of us are happily using front master cylinders from China/eBay that cost less than a kit to rebuild the old one would. I wonder if one of the rear master cylinders they are selling would be suitable?
http://www.ebay.ca/sch/Motorcycle-Parts ... =1000|1500 (scroll down)(change "ebay.ca" to "ebay.com" or "ebay.com.au" or whatever your local eBay is)
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
- Sidecar Bob
- Honored Life Member

- Posts: 8195
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: 75 GL1000 Rear Master
Murrayf is an occasional poster here but he is the top poster on the CX500 forum. He is also a supplier of aftermarket parts for the CX family, mostly items he has seen a need for in his own shop where he works on a lot of CX bikes (& a few 'Wings too). He is considered an authority on which aftermarket parts are safe to spend your money on. He has also worked with David Silver Spares to help them reproduce some NLA parts.
Murray recommends replacing with this master cylinder instead of buying a kit and rebuilding the original. http://www.ebay.ca/itm/380831324384
I have had one on my CX650E based winter machine for a year. It works really well so I installed one on my 'Wing this spring.
BTW: The main reason I replaced the one on the 'Wing was that its sight glass was getting ready to crumble. When I removed it I noticed that the boot on the piston, which was part of a genuine Honda kit I installed a few years ago, had perished.
Tell me again: Why shouldn't I buy Chinese brake parts?
Murray recommends replacing with this master cylinder instead of buying a kit and rebuilding the original. http://www.ebay.ca/itm/380831324384
I have had one on my CX650E based winter machine for a year. It works really well so I installed one on my 'Wing this spring.
BTW: The main reason I replaced the one on the 'Wing was that its sight glass was getting ready to crumble. When I removed it I noticed that the boot on the piston, which was part of a genuine Honda kit I installed a few years ago, had perished.
Tell me again: Why shouldn't I buy Chinese brake parts?
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
- tlbranth
- Platinum Member

- Posts: 1638
- Joined: Mon Jan 28, 2008 12:16 am
- Location: carnation, wa
Re: 75 GL1000 Rear Master
Didn't say you shouldn't. Said I won't.
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
- Sidecar Bob
- Honored Life Member

- Posts: 8195
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: 75 GL1000 Rear Master
There is a lot of top quality stuff coming from China these days. I would be very surprised to learn that Honda is not sourcing their OEM labelled stuff from there.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
- CYBORG
- Moderator

- Posts: 25112
- Joined: Mon Jan 14, 2008 12:52 pm
- Location: Muskegon mich
Re: 75 GL1000 Rear Master
I'm old enough to remember when stuff from Japan was always suspect. But times change. I'm not saying China is there yet, but things do change I, for one, will wait a while longer to see how things pan out.
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
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ColoRider
- Lead Member

- Posts: 5
- Joined: Sun Feb 19, 2017 7:45 pm
Re: 75 GL1000 Rear Master
FYI:tomk1960 wrote:Unfortunately, Mother Honda changed the rear masters in 1978. I know for sure that the 76 and 77 rebuild kits are part #43510-371-305 and '75 is most likely the same. K&L doesn't offer rear kits for these years, so your only choice is to order one from a Honda dealer, Service Honda, Western Honda, etc. Price will probably be in the $50 range shipped. At some point, Honda will stop offering the kits and hopefully K&L will by then. I think they actually did in the past, but discontinued them. Go figure.
Tom
I called K&L today and learned they are now making a rear master cylinder rebuild kit for the '75-'77's.
The Part # is 32-4270; equivalent to Honda 43510-371-305.
My Googling of their P/N turned up only one U.S. vendor thus far, on eBay.

