CityCyclingEdinburgh Forum » Questions/Support/Help

Gear size for singlespeed v. fixed

(48 posts)
  • Started 8 years ago by Wilmington's Cow
  • Latest reply from steveo
  • This topic is not resolved

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  1. wingpig
    Member

    I took off one of the swappable dropouts, which would make it trickier to casually re-use; I could only undo one of the bolts on the other.

    Posted 8 years ago #
  2. 559
    Member

    I run a 44/17 in town

    Posted 8 years ago #
  3. condor2378
    Member

    @IWRATS Thanks, I may attempt some ninja recycling over the weekend by throwing said dragon a packet of biscuits to distract her a la @wingpigs suggestion.

    Posted 8 years ago #
  4. I were right about that saddle
    Member

    @condor2378

    The frame is now buried under several tonnes of bed frames. And my old cast iron gutters.

    The Bike Station has a Dawes Audax frame, no marked price. Vertical dropouts, but there's ways round that. Offer them £10?

    Posted 8 years ago #
  5. skinnypins
    Member

    Settled on 42 -16 fixed (so ~69", I think) here, and haven't felt the need to change in 5 years. Would agree that mid-60s would be grand. If like me, you plan on stopping using your brakes so skid patches aren't an issue, using even toothed cogs and chainrings means you can get away with chain wear for longer (according to Sheldon Brown anyway!)

    EDIT: Sorry, just realised this was a single-speed question - ignore the above!

    Posted 8 years ago #
  6. :) No worries.

    When I rode fixed (for about 3 years commuting) I only ever had a front brake. Older and wiser now.... Pondering the 3 speed hub idea, comparing it with the simplicity of singlespeed, and nostalgia for fixed...

    Posted 8 years ago #
  7. Instography
    Member

    52x16 works.

    Posted 8 years ago #
  8. Nelly
    Member

    My daily ride is SS, 42/18 effective 63 inches (I think).

    Works well, spins out about 22mph on flat but still able to tackle hills with a full Carradice.

    Posted 8 years ago #
  9. wee folding bike
    Member

    For a while I've toyed with fitting the SA 2 speed kick back on my old Claud Butler.

    It would work out around 56" and 74" like the two speed Brompton.

    The gear cable guide is a bit worn so that hub would get round the need for a cable.

    Posted 8 years ago #
  10. kaputnik
    Moderator

    Pondering the 3 speed hub idea, comparing it with the simplicity of singlespeed, and nostalgia for fixed...

    I'm pretty sure the modern Sturmey 3-speed comes in a fixed flavour

    Posted 8 years ago #
  11. chdot
    Admin

    "
    I'm pretty sure the modern Sturmey 3-speed comes in a fixed flavour"

    Doesn't qualify for WC's "cheap".

    http://www.sturmey-archer.com/en/products/detail/s3x-silver

    http://www.cyclingweekly.co.uk/reviews/gears-drivetrain/sturmey-archer-s3x

    Posted 8 years ago #
  12. condor2378
    Member

    A good chart for establishing ratios

    http://www.aboc.com.au/tips-and-hints/track-bike-gear-chart

    Posted 8 years ago #
  13. dougal
    Member

    Used to ride FG 44/16 (77" per that chart) and now gone to 46/18 (69") which is much nicer from the lights going up Leith Walk but much spinnier coming down again. Would be good for a single speed though.

    Posted 8 years ago #
  14. neddie
    Member

    I have a 3 speed Sturmey with integral hub brake (~£90). Just realised it is now 4 years old and I've never done any maintenance on it at all*. Ever. For 4 years.

    Would recommended highly

    *Aside from periodically tightening the brake cable thumbwheel.

    Posted 8 years ago #
  15. condor2378
    Member

    So I took the new track bike (Giant Bowery '72) which I bought from @steveo last week to the velodrome today, and unfortunately it bottomed out far too quickly leaving me a bit left for dead, bouncing around the back with me legs going like the clappers.

    I was wondering if anyone has a 15 or 14 sprocket which they'd be willing to sell me, and I'm also looking for 165 cranks to put on the 48 ring. Need to get the ratio up to at least 86 to be competitive!

    Thanks all.

    Posted 8 years ago #
  16. steveo
    Member

    Errm, yeah, sorry I never thought about that.

    A sensible city gear probably isn't going to be much use on the track, especially when that sensible city gear is for a slow poke like me.

    Posted 8 years ago #
  17. condor2378
    Member

    @Steveo, haha no worries, I've had a look online and can get a sprocket for about £5 but I've been having difficulty finding 165 cranks. I shall keep looking.

    Other than that, it'll be a good track bike, nice and light with sprinters bars. There were a few admiring glances. Until they saw me riding it that is!

    Posted 8 years ago #
  18. steveo
    Member

    :)

    You should be able to get a big dinner plate on those cranks and I think the sprocket came from SuperStar when I bought brake pads for the mtb but sprockets are cheap as you've discovered.

    Posted 8 years ago #

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