• i'd like to have power measurements on my bikes but don't want to buy lots of different devices.

    my day to day bike has a british bb, road bike is a cannondale with bb30.

    am trying to work out if I should get the new DA cranks and just swap them between bikes and use the praxis adapters on the cannondale.

    or get p2m and just have it on the cannondale but it gets a fraction of the useage

    more sensibly still, wait for the ultegra power cranks - i'd guess they'll be out in another 6-12 months time anyway

  • Get the smallest axle standard you have as PM, hence DA, stages and P2M for Rotor 3D (not plus) would work. All of these will work fine with standard hollowtech BB and you'd need some sort of convertor for BB30. And obv SRM.

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