Advertise on Bikeforums.net



User Tag List

Page 1 of 4 123 ... LastLast
Results 1 to 25 of 99
  1. #1
    PanGalacticGargleBlaster Zaphod Beeblebrox's Avatar
    Join Date
    Apr 2009
    Location
    Smugglers Notch, Vermont
    My Bikes
    Upright and Recumbent....too many to list, mostly Vintage.
    Posts
    7,488
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Cycle Underground Chainrings

    Has anyone used Cycle Underground to get hard-to-find sized chainrings in specific sizes?

    http://www.cycleunderground.com.au/chainringdesigns.htm

    I'm trying to get a 49T 86BCD chainring and they're hens teeth near as I can tell.
    These guys seem interesting.
    --Don't Panic.

  2. #2
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,514
    Mentioned
    16 Post(s)
    Tagged
    0 Thread(s)
    That does look interesting. I could get replacements for my Stronglight 93s for about what they're selling for on eBay and in sizes that aren't available.

  3. #3
    PanGalacticGargleBlaster Zaphod Beeblebrox's Avatar
    Join Date
    Apr 2009
    Location
    Smugglers Notch, Vermont
    My Bikes
    Upright and Recumbent....too many to list, mostly Vintage.
    Posts
    7,488
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i'm not sure what shipping runs, I've got an inquiry into them. I can't imagine its much more than 15 bux to ship
    --Don't Panic.

  4. #4
    Senior Member Captain Blight's Avatar
    Join Date
    Oct 2009
    Location
    Minneapolis
    My Bikes
    -1973 Motobecane Mirage -197? Velosolex L'Etoile -'71 Raleigh Super Course
    Posts
    2,474
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hmmmmm. Hmmmmm.

    I wonder if they'd be willing to tackle Herse-style 3-pin rings for my Stronglight TSsssesssss...?
    '71 Raleigh Super Course ("Loose Change")
    '74 Raleigh Professional
    '7? VeloSolex L'Etoile rando build ("Chocolate Star")
    '77 Peugeot UE/O-8/10/9 mongrel
    '81 Trek 616
    '87 Trek 560 Pro Series
    '88 Schwinn Impact ("Burning Chrome")
    '92 Specialized Allez Comp
    '08 Specialized Crossroads winterbike ("Icicle the Bicycle")

  5. #5
    feros ferio John E's Avatar
    Join Date
    Jul 2000
    Location
    www.ci.encinitas.ca.us
    My Bikes
    1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
    Posts
    15,275
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    Why no 118mm BCD (Zeus)?
    Why no 128mm BCD (Nervar)? One can admittedly adapt a 130mm ring pretty easily.
    Why no 41 and 42T 144mm?
    Why no 6-bolt 152mm (TA) and 157mm (Simplex)?
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

  6. #6
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    I'd be VERY interested to know if they can reproduce the uber-rare 37t Stronglight 93 (122BCD) chainring?

    Even cooler if they could do the drilled "bis" version.

    Their site says they can do 122bcd, and their designs include the "look" for the 93 rings. BUT not the small teeth count versions...

    Anyone interested in a "group" ask?
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  7. #7
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    From their site:

    We also have avaialble in any of the designs above the following bolt circle diameter (bcd) 58 64 68 74 86 94 102 120 122.
    No doubt we have probably missed some bcd sizes that you may need.
    Simple contact us and if need be we will add that size of bcd to our jig and specially cut that chainring for you......no extra charge.
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  8. #8
    Senior Member
    Join Date
    Nov 2004
    Location
    Netherlands
    My Bikes
    Wabi Lightning, fixed 13.6 pounds. Cera steel road bike Campy veloce 9s
    Posts
    494
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I had a 151 BCD ring made a couple of years back. Very impressed, cool guys to deal with!
    You fixed my flat tire and now my light doesn't work, so...

  9. #9
    Freewheel Medic pastorbobnlnh's Avatar
    Join Date
    Oct 2005
    Location
    Trying to Ride in the NH Mountains!
    My Bikes
    Vintage Schwinns, Classy Cannondales, & an '83 Santana Tandem
    Posts
    9,253
    Mentioned
    23 Post(s)
    Tagged
    0 Thread(s)
    But it appears they are not machining for us gear hounds. These are really only for SS/FG and the occasional conversion of a 5 speed Collegiate.

    Quote Originally Posted by Cycle Underground
    Because our chainrings are not designed for front gear changes...
    Batavus, are you using an FD with your 151 BCD?
    Bob
    Dreaming of Summertime in NH!

    Visit my websites:
    FreeWheelSpa.com orpastorbobnlnh.com

  10. #10
    Senior Member rootboy's Avatar
    Join Date
    Apr 2005
    Location
    Sand Spit East
    Posts
    13,052
    Mentioned
    90 Post(s)
    Tagged
    2 Thread(s)
    Quote Originally Posted by John E View Post
    Why no 118mm BCD (Zeus)?
    Why no 128mm BCD (Nervar)? One can admittedly adapt a 130mm ring pretty easily.
    Why no 41 and 42T 144mm?
    Why no 6-bolt 152mm (TA) and 157mm (Simplex)?
    ....oh , you're just too old-fashioned, sir.
    But I agree.

  11. #11
    Senior Member jonwvara's Avatar
    Join Date
    Apr 2006
    Location
    Washington County, Vermont, USA
    My Bikes
    1966 Dawes Double Blue, 1976 Raleigh Gran Sport, 1975 Raleigh Sprite 27, 1980 Univega Viva Sport, 1971 Gitane Tour de France, 1984 Lotus Classique, 1976 Motobecane Grand Record
    Posts
    1,932
    Mentioned
    11 Post(s)
    Tagged
    1 Thread(s)
    I'm reviving this dead but not yet badly decomposed thread because I'm wondering if these guys (Cycle Underground) are still in business. Google takes you to a static site that claims Cycle Undergrond has a new improved Web site in the works, but no other information. They don't answer email anymore.
    I would like to try these guys again as part of my ongoing quixotic effort to get someone to make me a 122 BCD triplizer ring. They told me a year and a half ago that they could do it, but I stupidly didn't follow up and now maybe it's too late. Still waiting for the outfit in North Carolina that said they could make the ring to actually do it. I email them once a month and they always say "yes, we're going to make your ring any day now." At least I haven't paid them anything yet.
    Also, FWIW, I asked the guy at CU about their tooth design--whether it was applicable to derailleur gearing or SS/FG only--and was told that they can make either tooth style. Except that now they're apparently not making anything....
    Any of you Australians know what's going on with these guys?
    Last edited by jonwvara; 10-07-11 at 09:18 AM. Reason: the heartbreak of typos
    www.redclovercomponents.com

    "Progress might have been all right once, but it has gone on too long."
    --Ogden Nash

  12. #12
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    This is a good thread, and a very worthy project.

    There is a guy who is doing some amazing machine work. He's currently doing hubs. See this review! http://wheelfanatyk.blogspot.com/201...b-is-born.html

    He sent a note saying that when he's done with this run of hubs, he's moving onto cranks and would consider a prototype triplizer for 122bcd.

    I'm still hunting for a 37t 122bcd ring, should anyone discover one!!!
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  13. #13
    Senior Member clasher's Avatar
    Join Date
    May 2009
    Location
    Kitchener, ONT
    Posts
    1,515
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I was out riding my stronglight-equipped bike the other day and that totally reminded me that I want that triplizer badly.

  14. #14
    #$*& Wotan's Avatar
    Join Date
    Aug 2006
    Location
    Melbourne, Aus
    My Bikes
    Bates (of Coburg) track bike(60s/70s?), Malvern Star Ladies coronation (1953), SuperElliots pathracer (60s?), Repco pathracer (1964), Holland Ladies (50s?), Moa (50s?), Hillman Ladies (40s?), Batavia? (40s?), Malvern Star 2 star ladies (50s?)...etc.
    Posts
    411
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Not sure what's happening with Cycle Underground but they've always been pretty bad with emails. Try phoning them (check the timezone first!).

    Btw, the rings work fine with derailleurs as far as I'm concerned. They just don't have ramps and pins like modern chainrings for smoother shifting.

    These guys in the UK do custom rings, too. Might want to check with them: http://www.highpath.net/

  15. #15
    Senior Member gaucho777's Avatar
    Join Date
    Aug 2009
    Location
    Berkeley, CA
    My Bikes
    '72 Cilo Pacer • '73 Speedwell Ti • '74 Nishiki Competition • '74 Peugeot UE-8 • '86 Look Equipe (753) • '86 Look KG86 • '89 Parkpre Team Road • '90ish Parkpre Team MTB
    Posts
    4,038
    Mentioned
    23 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Wotan View Post
    Might want to check with them: http://www.highpath.net/
    Please note

    I regret that I've stopped making chainrings and sprockets.
    Thank you to all my loyal customers who have sent me so many interesting
    orders over the past 25 years. I almost feel that I know some of you
    personally - indeed some of you have become good friends!
    On this page you can see some of the things I used to make...
    seems like it would have been a great option.
    -Randy

    '72 Cilo Pacer '73 Speedwell Ti '74 Nishiki Competition '74 Peugeot UE-8 '86 Look Bernard Hinault 753 '86 Look KG86 '89 Parkpre Team Road '90ish Parkpre Team MTB

    Avatar photo courtesy of jeffveloart.com, contact: contact: jeffnil8 (at) gmail.com.

  16. #16
    Senior Member Andycapp's Avatar
    Join Date
    Aug 2011
    Location
    Puyallup, WA
    My Bikes
    Tommasini Super Prestige, Kamra Triathlee, Nishiki Tri-A equipe', Sakai 2000
    Posts
    446
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hmmm, this all makes me curious - what would be a "fair" price on CNC rings in hard to find bolt circles? Does anyone know the ID of a 122 bcd ring. Not the bcd it self but the diameter where it meets the crank spider.

    -Andy

  17. #17
    Senior Member Pars's Avatar
    Join Date
    Jan 2008
    Location
    Aurora, IL
    My Bikes
    '73 Raleigh RRA, 1986 Trek 500 commuter
    Posts
    2,077
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jonwvara View Post
    I'm reviving this dead but not yet badly decomposed thread because I'm wondering if these guys (Cycle Underground) are still in business. Google takes you to a static site that claims Cycle Undergrond has a new improved Web site in the works, but no other information. They don't answer email anymore.
    I would like to try these guys again as part of my ongoing quixotic effort to get someone to make me a 122 BCD triplizer ring. They told me a year and a half ago that they could do it, but I stupidly didn't follow up and now maybe it's too late. Still waiting for the outfit in North Carolina that said they could make the ring to actually do it. I email them once a month and they always say "yes, we're going to make your ring any day now." At least I haven't paid them anything yet.
    Also, FWIW, I asked the guy at CU about their tooth design--whether it was applicable to derailleur gearing or SS/FG only--and was told that they can make either tooth style. Except that now they're apparently not making anything....
    Any of you Australians know what's going on with these guys?
    The link in the first post (and others on the site) seem to work... not sure if that means anything or not.

  18. #18
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
    Posts
    12,874
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Andycapp View Post
    Hmmm, this all makes me curious - what would be a "fair" price on CNC rings in hard to find bolt circles? Does anyone know the ID of a 122 bcd ring. Not the bcd it self but the diameter where it meets the crank spider.

    -Andy
    fair price to me is whatever TA is charging for theirs, plus whatever time it takes to program the machine. Price out cad/cam time and you'll see that you can't afford a fair price. People that run this kind of business almost never charge a fair price, which is why they don't usually last past their tolerance for unreasonable customers.

  19. #19
    Senior Member Andycapp's Avatar
    Join Date
    Aug 2011
    Location
    Puyallup, WA
    My Bikes
    Tommasini Super Prestige, Kamra Triathlee, Nishiki Tri-A equipe', Sakai 2000
    Posts
    446
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Only have to program it once per design... This gets absorbed by running multiple parts. Small shop, low overhead, and "freedom of expression" can go a long ways when it comes to making cool stuff...

  20. #20
    my name is Jim BlueDevil63's Avatar
    Join Date
    Aug 2010
    Location
    Park City, Utah
    Posts
    835
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Andycapp View Post
    Only have to program it once per design... This gets absorbed by running multiple parts. Small shop, low overhead, and "freedom of expression" can go a long ways when it comes to making cool stuff...
    And small "tabletop" CNC rigs are pretty cheap nowadays.

  21. #21
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Andycapp View Post
    Does anyone know the ID of a 122 bcd ring. Not the bcd it self but the diameter where it meets the crank spider.

    -Andy

    117mm.
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  22. #22
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    This falls into the "Holy Crap!" category:

    Peter B from here and CR list fame, passed this web site onto me. They will manufacture rings "on demand" but it is apparently not cheap. Real problem: the site is in Chinese. Anyone read this?

    http://homepage1.nifty.com/ct-seizan/sub03.html

    Check out the 36t 122bcd under the 105bis header!!!

    Someone, Anyone, tell what that would cost!?!?!?!!??
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  23. #23
    Senior Member Andycapp's Avatar
    Join Date
    Aug 2011
    Location
    Puyallup, WA
    My Bikes
    Tommasini Super Prestige, Kamra Triathlee, Nishiki Tri-A equipe', Sakai 2000
    Posts
    446
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by LeicaLad View Post
    117mm.
    Not sure on that...

    But I do have a stronglight 104(?) with a 122 bcd(?)down at the shop. I'll have to grab that before I can get the needed dimensions. I really think this is a doable project for me. I just have to be a little patient waiting for a weekend that a)I'm free and b) the mill's open/between jobs.

    Anyone want to post a pic or two for aesthetic purposes?
    Attached Images Attached Images

  24. #24
    Senior Member
    Join Date
    Jun 2010
    Location
    Work in Asia, now based in Vienna, VA
    Posts
    1,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Check this out! A 122bcd triplizer! ! !



    here: http://homepage1.nifty.com/ct-seizan/122adp4232.jpg
    1959 Hilton Wrigley Connoisseur (still my favorite!)
    1963 Hetchins Mountain King (the gravel grinder)
    1971 Gitane Tour de France (The War Horse)
    1971 Gitane Super Corsa (The Garage Queen)
    1980 Ritchey Touring (The Grail Bike)
    1984 Tom Ritchey Team Competition (NOS show bike)
    (replacing the stolen 1981 Tom Ritchey Everest custom)

  25. #25
    Senior Member rootboy's Avatar
    Join Date
    Apr 2005
    Location
    Sand Spit East
    Posts
    13,052
    Mentioned
    90 Post(s)
    Tagged
    2 Thread(s)
    LeicaLad; I'm wondering what it would take to get these cut in China ???? Might be too much trouble given the relatively small demand.
    Certainly would/should be less expensive than the above Japanese site.

Page 1 of 4 123 ... LastLast

Posting Permissions

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