Page 1 of 3 1 2 3 LastLast
Results 1 to 25 of 63
  1. #1
    The Crazy Cat Lady of VRC
    Reputation: eastcoaststeve's Avatar
    Join Date
    Sep 2007
    Posts
    1,398

    Vintage Parts Mods

    Was looking at nighhtshade_rider's Trailmaster again, and the "Suntour VX derailleur modified for use on oversize seattube" got me thinking....

    I'm guessing there were lots of cool mods that preceded the "off the shelf" stuff we can get today...were there any other "common" mods from back in the day?

    I think I have an XTR front derailleur that has a custom clamp for a Manitou somewhere in my pile of stuff...


    What do you guys have/remember that you can share?



    Steve

  2. #2
    mtbr member
    Reputation:
    Join Date
    Jun 2011
    Posts
    464
    I know that we used to drill out presta rims to fit schraders all the time back in the day because presta rims were cheaper.
    That's the only mod I ever remember.

  3. #3
    DFA
    DFA is offline
    mtbr member
    Reputation: DFA's Avatar
    Join Date
    Jan 2004
    Posts
    276
    Acquired a rear Hope GT floating brake and Big Un off a Gt Lobo.




    Used some of the parts to make a floating brake for a San Andreas w. modular front mount to experiment with pivot location.



    Which eventually morphed into this.


  4. #4
    Retro on Steroids
    Reputation: Repack Rider's Avatar
    Join Date
    Oct 2005
    Posts
    2,333
    Mafac cantilever brake arms didn't swing open wide enough to admit an inflated 2.125 tire. You could cut a half inch or so off the back end of the front pads, and you had to file a bevel into the aluminum holders for the rear brake blocks.

    You will find that treatment on any of the original Ritchey MountainBikes.

    Magura motorcycle brake levers did not connect naturally to Mafac bicycle brakes. The motorcycle cables are much thicker. With a small lead melting pot and some brass ends, I made a lot of brake cables.

    The first thumbshifters only came in the right hand variety, so one would be used backwards on the left side, creating an asymmetric look.
    It don't mean a feng if it ain't got that
    shui.

  5. #5
    The Crazy Cat Lady of VRC
    Reputation: eastcoaststeve's Avatar
    Join Date
    Sep 2007
    Posts
    1,398
    Quote Originally Posted by Repack Rider View Post
    Mafac cantilever brake arms didn't swing open wide enough to admit an inflated 2.125 tire. You could cut a half inch or so off the back end of the front pads, and you had to file a bevel into the aluminum holders for the rear brake blocks.

    You will find that treatment on any of the original Ritchey MountainBikes.

    Magura motorcycle brake levers did not connect naturally to Mafac bicycle brakes. The motorcycle cables are much thicker. With a small lead melting pot and some brass ends, I made a lot of brake cables.

    The first thumbshifters only came in the right hand variety, so one would be used backwards on the left side, creating an asymmetric look.


    That's what I'm talking about...cool stuff RR....Thanks for sharing.



    Stdve

  6. #6
    VRC Illuminati
    Reputation: Rumpfy's Avatar
    Join Date
    Dec 2003
    Posts
    16,689




    -eric-

    http://www.rumpfy.com

    Wanted: Syncros 27.2 x 425 seatpost, 26.8 x 400 IRD seatpost

  7. #7
    mtbr member
    Reputation:
    Join Date
    Mar 2010
    Posts
    392
    i drilled a hole in the bottom of the legs on my Manitou 1 forks so that they didnt go into hydraulic lockout....dang air would come out but wouldnt go back in and they would get stuck in the bottomed out position....I tapped my fork and added a loose fitting plastic screw that worked great and stopped debris from entering the tubes.

  8. #8
    DFA
    DFA is offline
    mtbr member
    Reputation: DFA's Avatar
    Join Date
    Jan 2004
    Posts
    276
    Balance tube between the air valves on Mags so the pressure in both legs remained the same.

  9. #9
    The Crazy Cat Lady of VRC
    Reputation: eastcoaststeve's Avatar
    Join Date
    Sep 2007
    Posts
    1,398
    Quote Originally Posted by DFA View Post
    Balance tube between the air valves on Mags so the pressure in both legs remained the same.


    Sounds cool...pics?




    Steve

  10. #10
    Retro on Steroids
    Reputation: Repack Rider's Avatar
    Join Date
    Oct 2005
    Posts
    2,333
    Not fair, Rumphy.

    Everything on a Cunningham has been modified.

    Couple more. Joe Breeze made an adapter block that let you use a 4-wire Brooks saddle with a Campy micro-adjusting seatpost. On Breezer #2 he made a shim to fit the motorcycle handlebars to the bicycle stem.

    How about the old shingle on a Blackburn rack for a rear mudguard? BMX number plate zip tied under the down tube for a front mud deflector?

    One night I watched Gary Fisher use an Xacto knife to shave down and re-shape the knobs on a Uniroyal Nobby tire. He gave the tread more bite, and he saved the trimmings to see how much weight he had taken off.
    It don't mean a feng if it ain't got that
    shui.

  11. #11
    mtbr member
    Reputation: bikefat's Avatar
    Join Date
    Nov 2013
    Posts
    257
    Love yer posts. I'm so new-school! Apparently...

  12. #12
    Hit The Road Cyclery
    Reputation: -Anomie-'s Avatar
    Join Date
    Jan 2005
    Posts
    907
    I know Suntour made brake levers with "integrated" thumb shifters (IE bolted on), but I've never seen these anywhere else. Maybe CK can shed some light on them, although he's seen the bike they're on in person and I don't remember him knowing anything about their origins.

    Vintage Parts Mods-umtb-left-lever-2.jpg

    Vintage Parts Mods-umtb-complete-cockpit.jpg

  13. #13
    Retro on Steroids
    Reputation: Repack Rider's Avatar
    Join Date
    Oct 2005
    Posts
    2,333
    Why did links appear in my post above? How can we get rid of them?
    It don't mean a feng if it ain't got that
    shui.

  14. #14
    mtbr member
    Reputation: bikefat's Avatar
    Join Date
    Nov 2013
    Posts
    257
    I don't see any links in your post, so you must mean the viglink crap. You can shut those off in your profile.

    http://forums.mtbr.com/profile.php?do=editprofile

    Change "show inserted links" to "no". Folks set to "yes" will still see them, which is yet another reason I hate viglink on forums... so you'll also want to set to "no" the box for "allow inserted links in my posts".

  15. #15
    mtbr member
    Reputation:
    Join Date
    Mar 2010
    Posts
    392
    Thanks for the tip on the links...proved to be a good mod

  16. #16
    Humanoid Lobster
    Reputation: Jak0zilla's Avatar
    Join Date
    May 2010
    Posts
    561
    I get a "403 - Forbidden" error when I try to make that change to my profile.
    Don't call it a gooseneck.

  17. #17
    mtbr member
    Reputation: Fillet-brazed's Avatar
    Join Date
    Jan 2004
    Posts
    7,533
    Quote Originally Posted by DFA View Post
    Balance tube between the air valves on Mags so the pressure in both legs remained the same.
    what would be the purpose of that?

  18. #18
    mtbr member
    Reputation: Fillet-brazed's Avatar
    Join Date
    Jan 2004
    Posts
    7,533
    Quote Originally Posted by Repack Rider View Post
    Not fair, Rumphy.

    Everything on a Cunningham has been modified.

    Couple more. Joe Breeze made an adapter block that let you use a 4-wire Brooks saddle with a Campy micro-adjusting seatpost. On Breezer #2 he made a shim to fit the motorcycle handlebars to the bicycle stem.

    How about the old shingle on a Blackburn rack for a rear mudguard? BMX number plate zip tied under the down tube for a front mud deflector?

    One night I watched Gary Fisher use an Xacto knife to shave down and re-shape the knobs on a Uniroyal Nobby tire. He gave the tread more bite, and he saved the trimmings to see how much weight he had taken off.

    Would love to see that tire! Any pics? That's one tire that could have really used some more and sharper edges!

  19. #19
    DFA
    DFA is offline
    mtbr member
    Reputation: DFA's Avatar
    Join Date
    Jan 2004
    Posts
    276
    Quote Originally Posted by Fillet-brazed View Post
    what would be the purpose of that?
    It's an old moto trick from when air forks were de rigeur. The valves on the forks were connected with a single filler valve. It balanced the pressure out between the forks so you would have even pressure in both legs. Seen it done on Mags before. MBA featured it as a Mag hop-up at one point.

    The infamous "tach 'n speedo" forks off a 76 Yamaha YZ. The canisters on the tops of the forks had a floating piston in them, and both the top and fork legs had separate valves (you can see the second balance tube to the forks in the pic). You ran low pressure in the forks and high(er) pressure in the top of the canisters, effectively giving you crude 2 stage damping.


  20. #20
    mtbr member
    Reputation: DoubleCentury's Avatar
    Join Date
    Nov 2005
    Posts
    1,259

  21. #21
    Stokeless Asshat
    Reputation: jeff's Avatar
    Join Date
    Jan 2004
    Posts
    2,843
    Those crosstrac's were are cool bikes. The fork has me puzzled. Looks familiar. Brand?
    Quote Originally Posted by DoubleCentury View Post
    Zip ties? Not on my bike!

    Want:
    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  22. #22
    Mantis, Paramount, Campy
    Reputation: Shayne's Avatar
    Join Date
    Jan 2004
    Posts
    4,315
    Crosstrac
    *** --- *** --- ***

  23. #23
    mtbr member
    Reputation:
    Join Date
    Mar 2010
    Posts
    392
    I sure would love to have a crosstrac in my collection....never seen one...but they were way ahead of their time (them and FOES) in terms of suspension travel.

  24. #24
    Stokeless Asshat
    Reputation: jeff's Avatar
    Join Date
    Jan 2004
    Posts
    2,843
    Doh!!!
    Quote Originally Posted by Shayne View Post
    Crosstrac
    Zip ties? Not on my bike!

    Want:
    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  25. #25
    mtbr member
    Reputation:
    Join Date
    Oct 2005
    Posts
    2,627
    Quote Originally Posted by DoubleCentury View Post
    Does brakepads are backwards or no...!?

Page 1 of 3 1 2 3 LastLast

Similar Threads

  1. A Vintage Parts Fab
    By DoubleCentury in forum Vintage, Retro, Classic
    Replies: 224
    Last Post: 03-15-2014, 08:40 PM
  2. Replies: 0
    Last Post: 03-25-2013, 01:19 PM
  3. NOS/New Mfg vintage MTB parts?
    By Fudloe in forum Bike and Frame discussion
    Replies: 12
    Last Post: 09-21-2012, 10:55 AM
  4. Vintage parts hunting in Japan?
    By kumachan in forum Vintage, Retro, Classic
    Replies: 9
    Last Post: 05-09-2012, 03:02 PM
  5. Durability of Vintage Parts
    By magnetosphere in forum Vintage, Retro, Classic
    Replies: 19
    Last Post: 01-04-2011, 05:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •