One of the participants in yesterdays Traditional Bike Club group ride had his alloy seat post snap.
He's not a big guy (160 pounds), he wasn't putting any unusual stress on it (17 MPH on a flat city street) and it wasn't over extended when it just let go with a very loud snap.
Fortunately, no disaster ensued, but the outcome could have been ugly under other circumstances.
Any opinions as to what happened and why?
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