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Fixie gear ratio

  • 06-08-2009 7:27pm
    #1
    snollup
    Registered Users, Registered Users 2 Posts: 1,464 ✭✭✭


    Evening all,

    My bike has a 42 / 16 tooth ratio. Find I've outgrown it now so wondering what would be the next set up? Use the bike on the flat mostly. Clontarf to churchtown & back would be about as far as I would normaly go. The odd (flat) longer spin of 45k the odd time.

    Thanks.


Comments

  • #2
    Lumen
    Registered Users, Registered Users 2 Posts: 31,234 ✭✭✭✭Lumen


    The cheapest option is probably to change the rear sprocket, but if you do a lot of skid stopping you might want to consult a skid patch chart to work out the best combination front and rear.

    FixedRatio.jpg


  • #3
    snollup
    Registered Users, Registered Users 2 Posts: 1,464 ✭✭✭snollup


    Lumen wrote: »
    The cheapest option is probably to change the rear sprocket, but if you do a lot of skid stopping you might want to consult a skid patch chart to work out the best combination front and rear.

    FixedRatio.jpg

    Sorry but this is way over my head! Just looking for a little more resistance.


  • #4
    niceonetom
    Registered Users, Registered Users 2 Posts: 4,833 ✭✭✭niceonetom


    Just buy a 15 tooth cog. Still too easy? buy a 14 tooth one.

    There are two different widths of track cog out there so make sure you get the right one. It'll be either 1/8th or 3/32nd and it'll (probably) be written on the cog you have.

    Do you skid? If not then you don't need to worry about patches.


  • #5
    snollup
    Registered Users, Registered Users 2 Posts: 1,464 ✭✭✭snollup


    thanks. dont skid, stick too the front break & my weight.


  • #6
    blorg
    Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    If you really only cycle on the flat you could probably get a 14T cog. The disadvantage you will find in urban riding is that it will be a bit difficult to get started from lights. The bike will stop being able to go up hills though. Cogs are cheap so easy to experiment. Rabbit will give you details of speed/cadence with whatever combo and also skid patches.


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  • #7
    alritelad
    Closed Accounts Posts: 45 ✭alritelad


    snollup wrote: »
    Evening all,

    My bike has a 42 / 16 tooth ratio. Find I've outgrown it now so wondering what would be the next set up? Use the bike on the flat mostly. Clontarf to churchtown & back would be about as far as I would normaly go. The odd (flat) longer spin of 45k the odd time.

    Thanks.

    i used to have 48 16 on my bike, but with cycling a lot of hills and skidding quite a bit, my knees began to feel a bit of pain. i changed to 48 17 which is now perfect. no real difficulties getting up any hills, but also enough power to leather it on the flat. 48 16 is the same gear inches as 42 14. i reckon this might be too big a jump for you. i found that the extra zip i got from losing a few gear inches made riding much more enjoyable.

    42 15 will still have less resistance than my 48 17 set up, but i think it might be a decent step up rather than one that could be too dramatic to be enjoyable.


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