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Is it worth swapping my M540 standard spd's for some of the above.
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Is it worth swapping my M540 standard spd's for some of the above ---it worth!
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No. Not unless the old ones are dead and you can't get anything else.
Not sure what the cage is supposed to do - because it doesn't support a soft shoe and it's too fragile to take a good hit.
I use the cheaper Deore M530 trail pedals and really like them. I find them easier to use than regular small bodied ones. I've smashed the spd clip mechanism off one of them catching an awkward rock but at £20 a pop they are quite disposable!
Shimano M647. Reliable mech, indestructible and don't "grab" with rock strikes like a metal body will.£44.00 quid (merlin) well spent.
I've got the XTR version and I like them. Nice support even when unclipped. I've got the M647's on another bike and the XTR's are about half the weight.
Horses; Courses.
Lateral support is the main benefit.
The cage fore and aft helps you "find" the binding mechanism, and gives a little protection to the binding mechanism.
Much lower stack height than the M647 (relevant if you like a lower BB).
Got a selection of Shimano pedals on my bikes (inc M647)- the 785's are by far the nicest to use.