Wanting to start a build. Crank and chainring question.

youngy4130
youngy4130 Posts: 8
edited September 2016 in MTB workshop & tech
Wanting to start a full bike build but I had a question about some cranks.

I'm only wanting a single 34t or 36t chainring up front and maybe a 9 or 10 cassette at the back.

With this in mind about 2 years ago when riding BMX I bought a set of Profile racing cranks. They haven't been touched since.

What would be the pros and cons of setting up a hardtail MTB using BMX cranks and chainring up front?

They have a 19mm axle. Any help would be appreciated.

Comments

  • The Rookie
    The Rookie Posts: 27,812
    Bad idea.

    To go 1x gearing sensibly you need a narrow wide chainring or you need a chain guide, you can't get NW BMX rings as far as I can find - also what chainline would it give? Just get a reasonable MTB chainset.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • That makes sense... Didn't really think about the chainline.

    What would you suggest would be a good chainset for 1x? Probably max £150?
  • oodboo
    oodboo Posts: 2,171
    Shimano SLX are £72 on CRC:
    http://www.chainreactioncycles.com/shim ... prod148289

    You'd just need a suitable chainring for it. I use a superstar IO ring on my cx bike without any problems, they're about £20.
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