Originally Posted by
Kimmo
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Reasonable from one angle, but many folks will ask if there's an angle you can take that gives them at least part of what they came for. You can take some money for your time, but make it clear the decision to use the bike is up to the customer. You'd only be giving them something more to base their decision on, not pronouncing the bike sound.
My son's carbon bike frame cracked on the top tube. As far as I know he didn't ask a shop about it. But I can't think a shop would take a chance giving a minor advice about a safety issue.
Same for an adult - unless adult was willing to sign something saying they would not hold the shop liable for their opinion, which would still be risky I think, I'd avoid the issue.
I am not an attorney, not an attorney spokes person, but I have watched a bunch of Boston Legal before it got really weird.