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  1. Ah, yes: Theseus’s paradox....

    Ah, yes: Theseus’s paradox.
  2. I found this along the bike path last winter. I...

    I found this along the bike path last winter. I think one of the local bald eagles dropped it:

    http://www.os2.dhs.org/~john/lunch.jpg
  3. Replies
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    Sticky: I have a BSC thread Zeus freewheel I'd consider...

    I have a BSC thread Zeus freewheel I'd consider trading for a set of high-flange Zeus or Campy track hubs.
  4. Thread: Hubba

    by JohnDThompson
    Replies
    15
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    370

    If you put a 5mm -- or even 10mm -- spacer behind...

    If you put a 5mm -- or even 10mm -- spacer behind your threaded cog as were offered as examples with the bolt-on cog system above, the cog overhangs the lockring thread and prevents full engagement.
  5. Thread: Hubba

    by JohnDThompson
    Replies
    15
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    370

    Because of the lockring thread, you can only...

    Because of the lockring thread, you can only adjust the chainline by a couple millimeters before you lose lockring engagement.
  6. Originally the Matrix tubular rims were shipped...

    Originally the Matrix tubular rims were shipped with washers. Because of the narrow channel inside the rim, they were rectangular rather than round:

    http://www.os2.dhs.org/~john/matrix-washers.jpg...
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    "Grand Prix" looks right. It's an entry-level...

    "Grand Prix" looks right. It's an entry-level bike but looks like it's had a couple upgrades over the years; e.g. new crank and rear derailleur, and perhaps suffered an accident that required...
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    It works well, but doesn't fit over some modern...

    It works well, but doesn't fit over some modern fork crowns. For those careful use of a punch is needed.
  9. Some do, but by no means do all inhalers have a...

    Some do, but by no means do all inhalers have a counter.
  10. Yes, you have the wrong size wheels for that...

    Yes, you have the wrong size wheels for that frame. It was built with close racing clearances for 700C wheels. Use 700C wheels and you will have more clearance, but not necessarily enough for a 32mm...
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    Have the modern "transitions" materials improved...

    Have the modern "transitions" materials improved over the originals? I tried some many years ago, when they first became available, and they worked well for a while but eventually lost the ability to...
  12. Mostly tools. All the "Snap-On" tools in my tool...

    Mostly tools. All the "Snap-On" tools in my tool box (not many, but more than just a couple) are road finds.
  13. No, anti-seize paste is designed to prevent...

    No, anti-seize paste is designed to prevent electrolytic bonding between dissimilar metals. It is composed of grease and flakes of metal (copper, aluminum, or zinc are common, depending on the...
  14. Replies
    57
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    1,299

    What makes you say that? While it's quite...

    What makes you say that? While it's quite possible that he bought the bike using money he earned as a Senator or as SoS, once that money is paid to him in compensation for his work, it is no longer...
  15. I just use grease.

    I just use grease.
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    Indeed. And a significant risk for a fat...

    Indeed.



    And a significant risk for a fat embolus. I hope he recovers without complications.
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    The threaded driver will accept standard track...

    The threaded driver will accept standard track cogs, which are available with 22 teeth. You will not need a lockring, since the hub does freewheel. The problem is getting the cog off the driver,...
  18. Replies
    13,448
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    4,403,312

    Sticky: By "SR crank," do you mean "Sakae Ringyo" or...

    By "SR crank," do you mean "Sakae Ringyo" or Campagnolo "Super Record?" If Sakae Ringyo, what BCD ring are you looking for? They made cranks with 86mm, 110mm, 118mm, 130mm, and 144mm BCD (and...
  19. Replies
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    531

    It's not "downgrading" if you're making your bike...

    It's not "downgrading" if you're making your bike work they way you need it to work.
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    And the front fender keeps a lot of crap off your...

    And the front fender keeps a lot of crap off your bike as well.
  21. Nice looking bike, but the components are all...

    Nice looking bike, but the components are all over the map in age, ranging from early 60s to late 80s. That the frame appears to have 1010A dropouts (there isn't a hole for a "Sport" derailleur...
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    Ok. So going back to your question: Yes,...

    Ok. So going back to your question:



    Yes, it should be fine. If you have two spacers behind the flat cog, take one out and put the cog on with the dish facing out, and the other spacer outside...
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    Could be a little piece of debris rattling around...

    Could be a little piece of debris rattling around in the rim channel. Next time you remove the tire see if you can shake it out.
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    46T x 22T on a 20" wheel is going to be a pretty...

    46T x 22T on a 20" wheel is going to be a pretty low gear. Is that what you want?
  25. Replies
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    What kind of riding do you anticipate doing? That...

    What kind of riding do you anticipate doing? That Olmo is a nice bike, but it's intended for racing, not picking up groceries or riding on trails.
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