interesting... i picked up a pair of m505s cheap off of craigslist as i wanted to try fixed+clipless (i'd ridden clipless on a mtb years ago).

for the past week or so i'd noticed a slight whirring sound from the pedal/bb area when i was mashing, but have since realised that its quiet when i cruise.

i'm pretty sure its not the bb (new campy bb that was deadly silent and still feels silky smooth)... makes me wonder if i need to swap the pedals to see.

the spds were in reasonable condition, and i wasnt thinking that they'd last forever but i was hoping that i'd at least get a summer out of them. that way id know whether to upgrade or buy another set of clips and straps.

i'm just wondering if an undamped/unshocked road bike on rough(ish) roads ridden hard (by a bmxer) would expose the pedals to some extra stress that shimano hadnt predicted. wheres your commute from/to in vancouver? some of the cycle routes aint exactly fresh blacktop!

either way they shouldnt be failed this quickly...