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Twinpot Brake upgrade on 78 Skunk
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
Yes as Mark says between the rotor & the hub.
Dan1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Darin Jordan
Anyone have a solid source for the M10-1.25 Stainless, preferably Socket Head Cap Screws, for bolting on the brackets for this?
I can reuse the existing bolts for the calipers, but need to get a 3rd for the lower bracket mount, and would prefer they all match and look good.
Having a hard time locating suitable bolts in that size.
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Originally posted by Darin Jordan View PostAnyone have a solid source for the M10-1.25 Stainless, preferably Socket Head Cap Screws, for bolting on the brackets for this?
I can reuse the existing bolts for the calipers, but need to get a 3rd for the lower bracket mount, and would prefer they all match and look good.
Having a hard time locating suitable bolts in that size.sigpic
09 Kaw C14 Rocket powered Barcalounger
1983 GS1100e
82\83 1100e Frankenbike
1980 GS1260
Previous 65 Suzuki 80 Scrambler, 76 KZ900, 02 GSF1200S, 81 GS1100e, 80 GS850G
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
I have picked them up at my local Tru Valu store. He has a good selection (even if they are really expensive!)
I've used Bolt Depot in the past https://www.boltdepot.com/Catalog.as...FdRyfgodHBMJgw
Not used these but they're out there...
Home of The Bolt Guy stainless steel bolt kits for restoration of your classic BMW or vintage BMW or antique BMW motorcycle
You can also use the bolts from the Ninja Calipers - they are the same size. Lots of them available on Ebay.... I currently have six of the grey plated ninja ones in mine.1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Darin Jordan
Originally posted by bobgroger View PostHowdy, neighbor. I looked everywhere for stainless socket head bolts in fine thread, no joy. Ended up ordering OEM for a couple bucks each.Originally posted by salty_monk View PostI have picked them up at my local Tru Valu store. He has a good selection (even if they are really expensive!)
I've used Bolt Depot in the past https://www.boltdepot.com/Catalog.as...FdRyfgodHBMJgw
Not used these but they're out there...
Home of The Bolt Guy stainless steel bolt kits for restoration of your classic BMW or vintage BMW or antique BMW motorcycle
You can also use the bolts from the Ninja Calipers - they are the same size. Lots of them available on Ebay.... I currently have six of the grey plated ninja ones in mine.
The bolts that came in my calipers are a tad too short, so I'm just going to reuse the two factory bolts, and then I picked up a third Stainless Rounded Head Hex-Drive bolt in M10-1.50 with a locking nut for the lower bracket to fork mount. Looks pretty good. I'll replace them when I can find the right ones. Weather is too nice to drag this out for weeks!
Hoping to have it wrapped up later this week.
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Darin Jordan
Finished her up last night! Glad I looked back through this thread because I had missed the part of having to trim the speedo dust shied, but caught that BEFORE everything was assembled, so took care of that.
Everything bolted together perfectly, and DANG, these feel very nice. Proportional, smooth, and zero caliper movement when applied. I want to replace the front Progressive springs with some non-progressive rate springs, which I think will help with the dive, but otherwise, this is a nice improvement.
Thank you, Dan, for the elegant solution with those brackets and all the info on calipers and rotors.
Looking forward to this summer!
20170524_165123.jpg
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Darin Jordan
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
You should make sure that stainless bolt is an A2-70 one & not made of Cheese but I wouldn't have a problem using the standard thread as long as there is a locking element or threadlock.
The load is 90 degrees to the thread so the only real benefit of the fine thread is vibration resistance (and more threads in the thin caliper bracket but as this is the one with the nut on it that's not applicable here).
Looking good. I have straight weight springs & emulators fitted - they help with dive too.
The progressives with the close together coils lopped off are about a 50lb/in spring (approx 1.0 KGmm from memory, you can google that) so that might be a cost effective option for you if the spring rate is right... Replace what you cut off with Schedule 40 pipe.
1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Originally posted by salty_monk View Post
Looking good. I have straight weight springs & emulators fitted - they help with dive too.
Jeff
Living the dream...
1980 GS1000 that has been modestly modified. https://www.thegsresources.com/_foru...ilies/cool.png
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
I made up some adapters & ordered the ones from MikesXSthat are made for 35mm forks. A little cheaper that way... https://www.mikesxs.net/suspension.html
Racetech - FEGV-S3301
http://www.thegsresources.com/_forum/showthread.php?88036-Link-for-GS1100-RaceTech-fork-upgrades
Being a lightweight I cut down some stock springs to give me about a 43lb spring.1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Thanks Dan for the awesome brake research you have done! I can ride faster more confidently for many years now than if I had stock GS brakes... Very crucial, and very good looking brake package!
'77 GS750 920cc heavily modded
'97 Kawasaki KDX220R rugged terrain ripper!
'99 Kawasaki KDX220R rebuild in progress
'79 GS425 stock
PROJECTS:
'77 Suzuki PE250 woods racer
'77 GS550 740cc major mods
'77 GS400 489cc racer build
'76 Rickman CR1000 GS1000/1100
'78 GS1000C/1100
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Thanks Dan, I'm in the states in August and I'm going to order the Racetech emulators as they are a lot cheaper in the USA and take them back to blighty.
Looking good Chuck, looks like a great road to ride from the pictures.Last edited by bobtail84; 06-23-2017, 01:08 PM.Jeff
Living the dream...
1980 GS1000 that has been modestly modified. https://www.thegsresources.com/_foru...ilies/cool.png
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13969
- London, UK to Redondo Beach, California
Nice! Shame the exchange rate is in the toilet or it would be even better!1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Originally posted by Chuck78 View PostThanks Dan for the awesome brake research you have done! I can ride faster more confidently for many years now than if I had stock GS brakes... Very crucial, and very good looking brake package!
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