I don't know about warranty voiding, but indeed you want to be careful if you do that.

We use the Hirobel clamp on every stand.
https://hirobel.com/

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Trent Nix
Owned and operated Tri Shop
F.I.S.T. Advanced Certified Fitter | Retul Master Certified Fitter (back when those were things)

I would not ride a carbon frame that has ever been clamped by the top tube imho

Hirobel all the time.

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Anne Barnes
ABBikefit, Ltd
FIST/SICI/FIST DOWN DEEP
X/Y Coordinator
abbikefit@gmail.com

https://www.feltbicycles.com/...IA_Owners_Manual.pdf


Doesn't seem to bother Felt.
But I wouldn't do it

Actually, it does bother Felt. It’s in their carbon bike care guide.

https://www.feltbicycles.com/...arbon_Care_Guide.pdf

More importantly, it highlights the dreadful industry wide state of technical documentation when it comes to bikes. Felt’s assembly instructions sends a very contradictory message as compared to their warranty information.