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  1. #1
    Is a real super guy. Henry III's Avatar
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    Turning a non geared frame in something more multi cog friendly?

    I was debating on my next build since my projects builds are done. I'm still rummaging through my parts bin to see what I all have. I've got this gas pipe BSA three speed frame/fork from a fixed gear project that I parted out. I love the frame and can't part with the thing. Now I was thinking of doing a vintage CX build. The only problem is that it was originally just a three speed and doesn't have any braze ons. Remember it's a gas pipe frame so stamped dropouts so I'd have to use a derailleur bracket thingamajig. So what are my options? Add a bunch of clamp on adapters or just braze on the nessasary mounts...cable stops, canti mounts, cable guides, dropouts with intergrated hanger. I have a trashed Legnano frame I could de braze a lot of the needed parts.
    Yes I know the frame isn't worth much but it's got that sentimental value that I can't part with it let alone slap crappy parts on it. I really want to try frame building and think starting with brazing on smaller parts would help get my feet wet.

    The beast...
    '72 BSA frame/fork


    The Legnano Gran Premio to be stripped of it's braze on bits and it's TA crankset

    bursted hot dog like chainstay

  2. #2
    Senior Member GrayJay's Avatar
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    You could always build it up as a single speed CX. I would say go for adding the braze-ons. I am in the midst of a similar project myself, adding braze-ons to an 1970s era bottechia to convert it into a CX bike. You might want get a few other junker frames to try practicing brazing both off and ON first before adding fittings to the BSA. Perhaps easier than replacing the entire dropout, you could fabricate (or recycle) a derailler hanger to weld or braze onto your existitng dropout.

  3. #3
    I'm Carbon Curious 531phile's Avatar
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    http://www.bicyclebuys.com/drivetrai...llRear/1010082

    This should work for the BSA. No need to braze on the rear derailleur hanger.

    If the front fork doesn't have a hole for a brake, I think you can safely drill a hole. Just make sure the brakes you are installing has enough reach.

    For cable guides, there's plenty of clamps you can get online. or go ghetto and use zip ties.

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  4. #4
    Is a real super guy. Henry III's Avatar
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    Does anyone still make those clamp on cantilever bosses? As for the rear derailleur. I already have a bracket from another bike but just never cared for the look of them. If all else fails then I'll just go that route. On a side note, what kind of spindle does the TA crank use ISO or JIS or something wacky since it's French? I need to order a new bb for it and want something sealed.
    Last edited by Henry III; 01-20-11 at 06:44 AM.

  5. #5
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    72 BSA=Raleigh 26 tpi bb shell
    Bikamper
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  6. #6
    Is a real super guy. Henry III's Avatar
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    I know the frame takes a standard 68mm english threaded BB but wasn't sure about the spindle for the TA cranks. I wasn't sure if it was like the Campy cranks onto a JIS spindle. Just because it kind of fits doesn't mean that it completely does.

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    Shell is already doctored?

    Don't have a real good answer re: the spindle. I've mixed and matched and lived to tell about it. I did break a TA crankarm that was on a Campy Veloce spindle but the arm itself was suspect. Was also riding fixed at the time. Have a Nervar on the same spindle for the past 4 years and no issues.
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  8. #8
    Senior Member Wogster's Avatar
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    Quote Originally Posted by Henry III View Post
    I know the frame takes a standard 68mm english threaded BB but wasn't sure about the spindle for the TA cranks. I wasn't sure if it was like the Campy cranks onto a JIS spindle. Just because it kind of fits doesn't mean that it completely does.
    Pull the spindle out of the Legnano, measure it, it's likely to be the same length and taper. As for the bike in general, what about going for something like a 8 speed Nexus IGH. Save you the hassle of putting a hanger on, get one with a coaster brake and you just need a standard front brake, use some clip on cable hangers, put the shifter on the right and the brake on the left. Skip the FD and just use the one ring.
    Last edited by Wogster; 01-20-11 at 07:36 PM.

  9. #9
    26 tpi nut. sailorbenjamin's Avatar
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    You can use a rear wheel from an old 26" Raleigh Sprite or Columbia 10 speed cause they're the right size and take freewheels.
    Then again, 700s will fit this frame.
    I have spoken.

  10. #10
    Is a real super guy. Henry III's Avatar
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    I was running 700c on this frame already and didn't have any issues. I think I might give those jagwire barend shift pods a try since you can use any shift levers.

  11. #11
    Large Member realestvin7's Avatar
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    Why don't you get the Legnano fixed btw? Cheakas can replace the chainstay for $125.

  12. #12
    Is a real super guy. Henry III's Avatar
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    It's too big for me. Plus I think the frame is ugly as sin. Lol. A fellow BF member said he would help me out with the brazing.

  13. #13
    Large Member realestvin7's Avatar
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    Quote Originally Posted by Henry III View Post
    It's too big for me. Plus I think the frame is ugly as sin. Lol. A fellow BF member said he would help me out with the brazing.
    Well it's at least worth fixing and selling. Folks love the Legnanos. I myself, am a fan. Too tall for me though.

  14. #14
    tcs
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    Quote Originally Posted by Henry III View Post
    Now I was thinking of doing a vintage CX build.
    Are you actually thinking about cyclocrossing with this gaspiper when you get it built, or are you just after the "look"?

    So what are my options?
    If you're not actually going to 'cross, how 'bout some high-polish Sturmey hubs (Fr, Rr) and matching bar end shifter?

    You could go all-Sturmey and get the crank, too.

    Lauterwassers. Brooks.

    Frank Patterson, call your office.
    Last edited by tcs; 01-21-11 at 06:18 AM.
    "When man first set woman on two wheels with a pair of pedals, did he know, I wonder, that he had rent the veil of the harem in twain? A woman on a bicycle has all the world before her where to choose; she can go where she will, no man hindering." The Typewriter Girl, 1899.

    "Every so often a bird gets up and flies some place it's drawn to. I don't suppose it could tell you why, but it does it anyway." Ian Hibell, 1934-2008

  15. #15
    Is a real super guy. Henry III's Avatar
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    I was actually thinking of giving it a whirl. I read that starting out a lot of people just use rigid mountain bikes. I have more road stuff then MTB stuff why the heck not. I like having an example of something to use in my arsenal incase I want to give it a try.

  16. #16
    Senior Member TugaDude's Avatar
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    Quote Originally Posted by Wogsterca View Post
    Pull the spindle out of the Legnano, measure it, it's likely to be the same length and taper. As for the bike in general, what about going for something like a 8 speed Nexus IGH. Save you the hassle of putting a hanger on, get one with a coaster brake and you just need a standard front brake, use some clip on cable hangers, put the shifter on the right and the brake on the left. Skip the FD and just use the one ring.
    +1 on this, it is exactly what I was thinking. The owner of a local bike shop near me has an 8 speed Nexus IGH on a Gunnar Crosshairs and it is a very cool thing. I would run it with a single up front probably, unless you are really going to mash some hills.

  17. #17
    Is a real super guy. Henry III's Avatar
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    Last time I checked at my LBS and they were a bit pricey. Not to mention it was just the hub and didn't include the shifter or mechanism that attached to the end of the axle.

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