Re: Why did my crank snap?

spindrift wrote:
Doing about 15 mph outside Liverpool St Station and the whole pedal
crank sheared off near the base.

Could have been really nasty is it had happened earlier- imagine
approaching a hill and hammering down on the pedal when it snaps, you'd
be tipped sideways.

The bike shop pointed out that where the pedal snapped off the metal
was shiny at the broken bit but only halfway across, the other half was
covered with grease and mud so there must have been a hairline fracture
that I never noticed.

http://www.sheldonbrown.com/brandt/breaking-cranks.html

Plenty more information on that kind of thing if you search
rec.bicycles.tech.

Anthony
.

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