Hey folks, recently customer came with his 2017 mountainbike on Mavic Crossride wheels for a checkup. We discovered an unusual cracking noise coming from the front hub area, ruling out one possible cause after another, the hub itself remained as the sole possible explanation.
We overhauled the hub and noticed its unusual three piece design (see photo below). Putting it in a vice we finally found out what was causing the noise – one of the cup simply separated itself from the rest of the hub. It was possible to disassemble by bare hands.
I’m wondering, have you ever seen such design? When I look at the cheapest shimano or novatec (aliexpress) hub they are made from one piece.
I’m not an engineer but I see this failure as very hazardous for the rider, potentially ending up in a front wheel failure if it were to be ridden in this condition for a longer time – I believe failure of the one side would lead to failure of the other and after that the tension of the spokes wouldn’t be enough to hold the hub in one piece. What are your thoughts on that?
Cheers from Czech Republic