As opposed to taking off the left side and continuing to ride one-legged?
Well most people who buy a crank based PM will just be swapping out for standard cranks. If it's your only option.....
If you are srs enough to buy a PM then you can probably dig out an old hollowtech 2 road chainset from your spare parts bin whilst your wallet crushing misery bringer is being warranty repaired.
@Bainbridge started
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As opposed to taking off the left side and continuing to ride one-legged?