my 520s have a lot of play in them, about 2 years old with 5k miles. I don't know if something needs tightening, or they need new bearings. I'll probably try to fix them either way cause my other bike could use new pedals.
from what I've read the 540 and 780 are identical internally. what I'd like to know is if the 540/780 will get play in them as soon as the 520 and if the bearings will last longer than the 520. the 780 are about $20 more than the 540, what would I be getting for the extra $?
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