After 11 years or commuting, usually about 14 miles a day, my crank finally gave up. Was quite a bad crash, thankfully on a trafficless road.
But is this a normal part of a crank's lifecycle? Aluminium parts fatigue.
My crank was the sturmey archer track crank. Pretty perfect for a long time.
But should I have realised it was going to go after so many years in service?
Do you guys try preempt crank failure? Or is this just really bad luck and my crank should have had many more years service?
(*Extra question – what crank is certified indestructible? Really don't want to experience this again)
by Master_Confusion4661
4 Comments
Where there signs of it about to go? If so what where they. Mine is about 6 yrs or. Thousands of miles
14 miles every day for 11 years is more than 50k miles. Even at 30k miles, parts lasting that long is impressive. Cranks shouldn’t ever be the first to go though, I would assume you had some kind of micro crack that grew with corrosion and strain.
I don’t think any crank could be considered near indestructible, with time and miles anything will break. Your best bet is to stick with square taper cranks, though. There are some very strong options (Sugino 75, Dura Ace 7400, Stronglight, Suntour, Andel Deluxe) and they are very quick to replace while keeping the same BB in most cases.
Wow, surprising. At the break, are those two different colorations, or is that just how it appears in the picture?
Shimano hollow cranks have famously been recalled. But I don’t recall any other cases.
What crank was it? Looks cheap tho.
Indestructible cranks will always be square tapers of high quality. So every NJS cranks and some more.