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  1. #1
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    Columbia Lexington - Commuting Conversion

    I have decided to try and get into shape and commute to work via bicycle as i do not live far. I dug out an old Columbia Lexington out of the garage and was thinking I might try and upgrade it for modern cruising/commuting purposes.

    The tires on it say they are compatible with British K-2 and America S-6 tires... what size equivalent is that?

    I found some really nice wheels with 700c tires and a Nexus 3 speed hub set that I was hoping would fit the bicycle well. Your recommendation?

    Also, do you think a bottom bracket conversion is a good direction to go? Will this be difficult to do?

    Thanks for your thoughts.

  2. #2
    Senior Member Bill Kapaun's Avatar
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    The S-6 is a somewhat uncommon 597mm BSD. (Bead Seat Diameter)
    It may be called 26x 1-3/8" or 26x1-1/4" (Britain?)
    Often confused with another (more common) 26x1-3/8" size that has a 590mm BSD.
    Tire Sizing Systems

    IF you bike has rim brakes, a 700c (622mm) rim simply won't match the pads. Possibly not even have enough clearance to even fit the bike anyway.

    I have absolutely no idea what BB you have. \PICTURES would help us who are not familiar with the bike.

  3. #3
    me have long head tube TallRider's Avatar
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    A quick web search indicates the Columbia Lexington was a low-end bike in its time (presumably 1970s or early 1980s). Which is to say, it was never nice enough to make it worthwhile pouring much money into it. If you want a 3-speed bike with modern 700c wheels, it is more worthwhile to go buy a 3-speed bike with 700c wheels. Bottom bracket conversion isn't worth it on this level of bike, unless you have significant sentimental value associated with the frame.

    The K2 tires are 27x1 1/4" aka 630mm bead diameter. You can get plenty of tires in this dimension, although 700c (622mm bead diameter) is way more common now.

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    Well its more of the fact that the bike is free... and therefore I don't mind spending a little money on this frame if I can turn it into a decent commuter.

    So the 700c's with work. PERFECT! :-)

    As far as the bottom bracket, i was simply hoping to convert it to a european style 3 piece instead of hassling with trying to refurbish something that isn't necessarily in good condition.

    The wheels and tire set I was looking at came with a 3 speed shimano nexus hub which seems to be fairly decent.

  5. #5
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    This is the bike... but not mine per say. I need to get the bike out and take some photos for the forum.
    Patrick?s 1975 Columbia Lexington | Old Ten Speed Gallery

    This is what I am hoping is close to my bike' specs. Information on the Columbia bikes is really hard to come by it seems.
    As God Intended ? Columbia Newport Ten-Speed Part 2 | Old Ten Speed Gallery


    *Update* This looks identical to my bike down to the decals and color scheme.
    http://oldtenspeedgallery.com/owner-.../#.U16VU160bnc
    Last edited by yojo056; 04-28-14 at 11:53 AM.

  6. #6
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    Quote Originally Posted by yojo056 View Post
    Well its more of the fact that the bike is free... and therefore I don't mind spending a little money on this frame if I can turn it into a decent commuter.

    So the 700c's with work. PERFECT! :-)

    As far as the bottom bracket, i was simply hoping to convert it to a european style 3 piece instead of hassling with trying to refurbish something that isn't necessarily in good condition.

    The wheels and tire set I was looking at came with a 3 speed shimano nexus hub which seems to be fairly decent.
    Free or not, modernization this bike is going to cost as much or more than buying a much better, newer bike used from Craigslist, etc. As noted, it wasn't a high quality bike when brand new and 40 years haven't improved it any.

    BTW, the wheel/tire size on it currently you give can't be right as S6 and K2 are not the same (as Bill and TallRider have stated) and neither is 700c so why do you think 700c will fit and match the brakes?

    On top of all of the above, is the bike the right size for you? If not, go no further with anything.

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