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Cracked hub flange

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Moderator: Pricey_sky

Cracked hub flange

17 Aug 2017 03:53

Yesterday whilst riding slowly up hill, the rear hub flange cracked on my cross bike. I've been riding for 25 years, and never even had a broken spoke.

A few questions:
1. What could be the cause? It's definitely not my immense power!
2. Is this likely to be covered by warranty? The bike is less than 3 years old.
User avatar The Hegelian
Posts: 591
Joined: 06 Jul 2014 09:18

17 Aug 2017 11:58

It might have cracked due to a defect in manufacturing. It would take an examination of the crack to determine if that's the case - e.g. voids or bubbles in the metal where the crack happened.
Or it could have cracked due to some external damage done to the hub - gouged with wrench, dropped, etc.

I doubt that it's covered by any general warrenty - you'd have to convince someone that it was defective and not due to normal wear / usage.

Jay Kosta
Endwell NY USA
Posts: 741
Joined: 25 Nov 2010 13:55

18 Aug 2017 00:09

Thanks Jay.

I think it probably was a manufacturing fault - if only because the bike doesn't have many k's on it, hasn't been ridden hard and hasn't received any external damage.

I have contacted Fulcrum, but frankly I'm not holding my breath. It may be that there have been other failures of the same kind on the same wheelset, in which case they may take responsibility, but if it's a one off I don't like my chances.
User avatar The Hegelian
Posts: 591
Joined: 06 Jul 2014 09:18

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