what size hex wrench fits into the back of SDP pedals?



Shimano PD-M540 uses 8mm, same as the bolt retaining the crank arm on a square drive botttom bracket. :)
 
gclark8 said:
Shimano PD-M540 uses 8mm, same as the bolt retaining the crank arm on a square drive botttom bracket. :)
M540's are 8mm. M520's are 6mm, but they also have standard 15mm flats. Gotta check your specific pedal
 

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