Originally Posted by
Flandry
So, some jackass broke off my pedal last night. It was my Specialized Tricross Singlecross (Sugino Messenger crankset?). I noticed something was wrong when i unlocked it and started riding, and thought that the pedal had been bent. It wasn't until i got home that i realized that what had happened had stripped the threads, and the pedal was completely loose.
Unfortunately, because it was a steel pedal bolt in an alloy crank arm, the threads in the crank arm stripped and it will have to be replaced. It's the left-side arm. . .
I'm not sure I follow this. If someone broke off your pedal from an aluminum crank arm, you likely have a lot more damage than just stripped threads. If you just have stripped threads, I can't imagine how someone did that (unless they used a wrench, which is even more bizarre). Maybe your pedal was improperly installed and the threads finally let go.
BTW, Though you need a different bike shop, don't go to a car shop -- they will not have the correct insert size.