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  1. Replies
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    After owning both a Brompton and a Strida, I kept...

    After owning both a Brompton and a Strida, I kept my Strida for Metro commutes, short distance riding downtown, and restaurants/doctor appointments/etc..

    Brompton does have an excellent fold and...
  2. If your tires are not terribly wide, you can fit...

    If your tires are not terribly wide, you can fit short pull v-brakes on the bike and eschew the travel agent.
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    :thumb:

    :thumb:
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    I really liked the Birdy bikes that I rode. You...

    I really liked the Birdy bikes that I rode. You just need to deal with the odd wheel size -- you can fit 349 too if you build another wheelset -- and the lack of a local customer support network. ...
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    That is quite wide. Hah! There is a good...

    That is quite wide.



    Hah! There is a good BMX shop in Falls Church. If I had a 451 bike I might give it a try.

    When I last checked, Velocity's 451 rim is the A23. There are a bunch of...
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    Schwalbe Shredda also comes in 20 x 1 3/8. So...

    Schwalbe Shredda also comes in 20 x 1 3/8.

    So what is different about OS 20 that makes it incompatible with "regular" 451 rims and tires?
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    Check the OLD before buying a new wheel. ...

    Check the OLD before buying a new wheel.

    Bicycle Frame/Hub Spacing
  8. Replies
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    Oh ... I see. Perfect. That's what we need....

    Oh ... I see.

    Perfect. That's what we need. :wtf:
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    At least they are calling it the "OS 20" size. ...

    At least they are calling it the "OS 20" size. But yes ... I expect more than a handful of folks following Sheldon's crib notes to get screwed.
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    New wide 451 tire!

    New to me. Although I'm not sure that there are many 451 ready folding bikes that can fit a 1.60" wide tire.

    What is OS20 PowerBlock? | TIOGA BMX Race
  11. Hah! You've just aged yourself old man! Welcome...

    Hah! You've just aged yourself old man! Welcome to the club TCS! ;)

    FWIW, I think it looks like a cool bike and something with a lot of potential. But considering that the alternatives are...
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    FWIW, I can hardly see anything in the photo. ...

    FWIW, I can hardly see anything in the photo. Maybe there is a real photographer here, but the flash is overwhelming so you might get a better shot during the day.
  13. I think that it's designed for a single chainring...

    I think that it's designed for a single chainring such that the derailer has a short cage. The movement of the jockey pulley accommodates the giant cog but the tension pulley only needs a 32 tooth...
  14. We'd want to ask a real engineer, but off the top...

    We'd want to ask a real engineer, but off the top of my head, you have to convert the same amount of downward velocity (kinetic energy) to heat to slow you down. I'd be surprised if there was a...
  15. Not directed at me but my thoughts are ... I...

    Not directed at me but my thoughts are ...

    I assume that this depends on what "expensive" or "not cheap" means plus the gear you're trying to reach. I'm thinking a Capreo wheel plus cassette will...
  16. Based on what some tandem folks have said, you...

    Based on what some tandem folks have said, you can indeed get blowouts or other wheel/tire failures.

    We personally have not had the problem since our triplet has an Arai drum brake as a drag...
  17. I remember calculating -- on Sheldon's site --...

    I remember calculating -- on Sheldon's site -- that a 56-11 combination results in ~86 gear inches. Most definitely lower than standard road bikes. Although probably reasonable for non-racers.
  18. If it fits, then you can ride it decent...

    If it fits, then you can ride it decent distances. And the tikit is generally upgradeable with standard parts. If you really want to replace a road-ish bike for 25 miles, you'll eventually want...
  19. I think you'll be fine. Use wide tires, a...

    I think you'll be fine. Use wide tires, a reasonable tire pressure, and avoid doing the crazy stuff and they should last a while. You might want to check spoke tension after a few rides.
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    It certainly looks lighter; but if you think that...

    It certainly looks lighter; but if you think that it must support roughly the same loads from riding, it might be "beef"-ed up in other ways.

    I suspect that the Silk frame would be a little easier...
  21. Oh ... I'm not really a wheel builder. Nowadays...

    Oh ... I'm not really a wheel builder. Nowadays I spend my free time riding around with the kiddies. So my time would be expensive.

    You'd do much better by going to an LBS with a good reputation.
  22. Nope. At the prices that Dan's Comp sells their...

    Nope. At the prices that Dan's Comp sells their spokes, I'd just buy them new. I've never had a problem with their service.

    From memory, $0.40 for double butted spokes with nipples.

    I'm...
  23. So I looked at Captain Bike's pages and he writes...

    So I looked at Captain Bike's pages and he writes that you shouldn't cold set an aluminum frame to accommodate a different hub width. Based on my one experience cold setting a frame -- it was...
  24. Hah! Love it. But I'm all stocked up bud. When...

    Hah! Love it. But I'm all stocked up bud. When I was recovering from surgery one way to pass the time was to build wheels. And with the kids, I'm not putting on nearly as many miles as before.
  25. 7 speed cassettes are dirt cheap.

    7 speed cassettes are dirt cheap.
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