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Exercise Bike Pedals

  • 13-11-2022 5:15pm
    Registered Users Posts: 99 ✭✭

    This may be slightly off topic, but I'm trying to repair an exercise bike for a friend. One of the pedals is broken, and I thought I might replace it with one from scrap. However, when I checked the broken one against the ones on my own road bike I found that the threads are not the same. Two questions then: (a) do all exercise bikes use a pedal thread different to street bikes and (b) if so, do they all use the same one?


  • Registered Users Posts: 1,480 ✭✭✭hesker

    Left and right pedals have different thread so you might be trying to fit a left where a right is needed or vice versa

    I’ve never fitted a pedal to an exercise bike but I’d check the above if you haven’t already

  • Registered Users Posts: 22,648 ✭✭✭✭ted1

    Should be the same.

    the left pedal and right pedals have different threads. In that they are opposite direction

  • Registered Users Posts: 99 ✭✭skinthegoat

    Thanks for the responses. I know about the left/right threads, that's not the problem. The thing is that the exercise bike pedal uses a smaller bolt than a normal bike. In fact, I can slide the bolt of the exercise bike pedal through the threaded hole on my street bike cam without touching the edges, hence my question re bolt sizes.

  • Registered Users Posts: 1,480 ✭✭✭hesker

    Well that’s a different issue. Your op just said problem with threads.

    Looks like you need a specific pedal for this bike. You might find similar in other models of exercise bikes but you won’t find it in a normal bike.

    There’s one caveat though. I’m assuming your street bike is not using some weird oversized pedals similar to ones that Shimano produced years ago. Unlikely I would say. If you took some pics it would help.

    Post edited by hesker on

  • Registered Users Posts: 99 ✭✭skinthegoat

    Yeah, tks Hesker. No, my bike uses a normal pedal. I'll try taking the exercise bike pedal into a shop and see if they can match it. A bit awkward buying on internet, where the postage costs as much as the item. Thanks to all who responded, much appreciated.

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  • Registered Users Posts: 968 ✭✭✭8valve

    Bear in mind there are two common pedal thread sizes; 9/16'' which is used on every thing, road bikes, mountain bikes, hybrids and most bikes from a 20'' wheel upwards and a 1/2'' which is common on small kids bikes.

    The exercise bike might have the smaller one. Any decent bike shop will be able to check for you.