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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!

  • Is there any way of easily telling

    Yes, ask the manufacturer. Responsible ones will already have marked the differentiating parts with the rail size they fit 🙂
    For designs which don't work with both 7mm round and 7×9 oval rails, it should be pretty obvious at assembly whether your rails match your clamp.
    What torque did you use once you'd decided the manufacturer didn't know what they were talking about? What the thread size of the fastener?

  • Honestly, I didn't even check the point at which the creaking started - I immediately stopped and reversed.

    Obviously not a case of thinking I know better than the manufacturer, I simply didn't feel comfortable proceeding.

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