Also will it actually be much cheaper to repair expensive thin walled alu tubing over carbon? Or do you mean Cannondale do a crash replacement for 1st owners?
Alu dents and a that's that. Keep an eye on it and keep riding. You can't really see the damage done to carbon so judging it's safety a bit tricky. To be totally safe it needs an x-ray or putting in the bin.
FTFY - (thin walled) Alu fails in much the same way as carbon - catastrophically, usually after cracking... There is a good reason why Cannondale's were referred to as "crack-n-fail" in the 90's....
It also requires post-weld heat treating (ie after a repair...)
Alu dents and a that's that. Keep an eye on it and keep riding. You can't really see the damage done to carbon so judging it's safety a bit tricky. To be totally safe it needs an x-ray or putting in the bin.