# Are wedge-style seatpost clamps and non-round seatposts more prone to creaking and slipping?

**URL:** <https://www.trainerroad.com/forum/t/are-wedge-style-seatpost-clamps-and-non-round-seatposts-more-prone-to-creaking-and-slipping/82511>\
**Category:** Equipment\
**Created:** [April 2, 2023, 9:01am UTC](https://www.trainerroad.com/forum/t/are-wedge-style-seatpost-clamps-and-non-round-seatposts-more-prone-to-creaking-and-slipping/82511 "2023-04-02T09:01:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Steve\_Adorjan](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/steve_adorjan/32/17174_2.png) [@Steve\_Adorjan](https://www.trainerroad.com/forum/u/Steve_Adorjan)\
**Post date:** [April 2, 2023, 9:01am UTC](https://www.trainerroad.com/forum/t/are-wedge-style-seatpost-clamps-and-non-round-seatposts-more-prone-to-creaking-and-slipping/82511/1 "2023-04-02T09:01:20Z")

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I haven’t really been able to find a thoroughgoing discussion of this, so I thought it might be worth raising the question: Are wedge–style seat post clamps used with non-round (e.g. aero or D-shaped) seat posts inherently more prone to potential creaking or slipping seat posts? I’ve always only used traditional round seat posts and now I’m considering a Tarmac, but read some worrying forum posts about issues with creaking and slippage

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**Author:** ![jdman](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/jdman/32/12908_2.png) [@jdman](https://www.trainerroad.com/forum/u/jdman)\
**Post date:** [April 2, 2023, 9:19am UTC](https://www.trainerroad.com/forum/t/are-wedge-style-seatpost-clamps-and-non-round-seatposts-more-prone-to-creaking-and-slipping/82511/2 "2023-04-02T09:19:58Z")

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No - well at least not on my 2 Planet X TT bikes that I have had - you do need carbon paste (on the old one) but the newer one had a sand paper like surface on the seat post - no issues - that said I have heard of a few on Orro aero bikes but I don’t own one…that said I don’t earn enough as a teacher to buy a Tarmac in the UK so not sure about them 😀

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**Author:** ![Steve\_Adorjan](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/steve_adorjan/32/17174_2.png) [@Steve\_Adorjan](https://www.trainerroad.com/forum/u/Steve_Adorjan)\
**Post date:** [April 2, 2023, 9:35am UTC](https://www.trainerroad.com/forum/t/are-wedge-style-seatpost-clamps-and-non-round-seatposts-more-prone-to-creaking-and-slipping/82511/3 "2023-04-02T09:35:07Z")

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Thanks! It would be a relatively inexpensive older (2018) Tarmac SL6 for me 😃