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  1. #1
    partly metal, partly real sp00ki's Avatar
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    Good gearing for rollers (high cadence)

    (from this topic)
    I'm buying a set of rollers next month, and will be purchasing an ultra cheap "track bike" ($75) for sole use with the rollers. I already have a trainer setup for doing resistance and sprint intervals, but wanted to use rollers specifically for improving high cadence form/aerobic condition on alternate days.
    I'm thinking a very agile gearing will force me to do high rpm, and eventually improve my form on descents/all out sprints.
    What gearing is too "agile" for rollers? I understand that part of the physics behind balancing on rollers is spinning your wheel, so i don't want it to be so low that the rollers are rendered useless, but i don't want it to be too high as to offer any resistance. I don't have experience on rollers w/a low gear ratio, so i'm kinda clueless as to how much the lower ratio will inhibit effective rolling. My TT bike is currently in pieces, so i'm thinking a good recommendation is my best bet to avoid swapping out too many chains/chainrings (time/money).

    Anyone with experience have a suggestion?
    Quote Originally Posted by bonechilling View Post
    Road [racing] is one of the only sports where adult men can compete in a non-scholastic setting, so inevitably 8/10 racers are fiercely-competitive nobodies. It's fun as hell, but it's also the foremost refuge of defeated and aging jocks, turned middle-management types.

  2. #2
    BloomBikeShop.com BloomBikeShop's Avatar
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    Well I've ridden a 39/27 on rollers and that doesn't offer much (if any) resistance. I would think you'd need a little resistance to work against though.

    What are your options for track gearing? I don't think I've seen a 27 tooth singlespeed cog...

  3. #3
    partly metal, partly real sp00ki's Avatar
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    woah... that's alot lower than i was considering.
    partially answers my question, though: if it's possible to ride on 39/27, i shouldn't have too much trouble riding 41/17 or so (22 is the most teeth i've seen on a cog, incidentally).

    Correct me if i'm wrong...
    Quote Originally Posted by bonechilling View Post
    Road [racing] is one of the only sports where adult men can compete in a non-scholastic setting, so inevitably 8/10 racers are fiercely-competitive nobodies. It's fun as hell, but it's also the foremost refuge of defeated and aging jocks, turned middle-management types.

  4. #4
    BloomBikeShop.com BloomBikeShop's Avatar
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    A 41/17 should be fairly easy. Definitely enough resistance to get into a rhythm, but without killing your legs.

  5. #5
    partly metal, partly real sp00ki's Avatar
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    Great. I suppose i'll start there and decrease a few teeth if necessary (or at least as i improve).

    Thanks
    Quote Originally Posted by bonechilling View Post
    Road [racing] is one of the only sports where adult men can compete in a non-scholastic setting, so inevitably 8/10 racers are fiercely-competitive nobodies. It's fun as hell, but it's also the foremost refuge of defeated and aging jocks, turned middle-management types.

  6. #6
    Curmudgeon Wil Davis's Avatar
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    I use rollers for all my riding in the winter, and I've found something like a 52 x 17, using a 700C x 25 tyre to be about right. That combination gives me a GI of around 80 which is comfortable; 20+ mph at a cadence of ~90; fast enough to be able to stay balanced on the rollers, and be able to practice "single leg" exercises or ride "no hands".

    - Wil
    "" - Marcel Marceau

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