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  • Is there any way of easily telling whether a seatpost clamp is for round/oval/other(?!) saddle rails?

    My seatpost is a Neil Pryde cf jobbie from ebay and my go to saddle ended up wiggling free mid-ride.

    I can't work out why, other than me being scared to torque up to the required 15nm (because it literally sounded like a lot - huge creaks). Could it be rail profile?

    This is a very novice question, I appreciate!

  • Vernier gauge taking spot measurements around the clamp's internal circumference.
    If they're not all the same (give or take a smidge), it isn't round.
    The same goes for checking the seatpost itself for roundness.
    ETA - I'm not 100% certain that I've understood your question correctly.

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