the description on these two pedals are just so similiar but the 540 cost twice as mush as the 520 has anybody tried both and can let me know if it is worth spending the extra bucks... they look identical in the pics also.
I just took a look into Shimano's specification sheets and the bearing assembly appears to be exactly the same - even the parts numbers do match.mike11204 said:Im not totally sure but I think the 520 uses 1 bushing/1 bearing while the 540 uses 2 bearings but I could possibly be thinking of something else.
couldn't agree with your more on shimano and other companies doing themselves a disservice for not really tell you the difference between products. if they don't tell you what is better or worse then how are you sapost to know what you are getting for your money.AL29er said:IME the PD-M540 are a superior product. The Lock Bolt is metal, stays tight, doesn't crack, and requires no special tool to service. The PD-M520 uses a plastic version that can crack, work loose, wear, and need a special tool to service.
Shimano really does itself a disservice in terms of not defining the differences in their component groups. Just because they look the same does not mean that they are. Things like cast vs. forged alloy, higher strength steel, and higher grade bearings are rarely even mentioned. These pedals are a good example of that.
The 520's will definitely work, but the 540's are more refined.
520 is fastened with a nylon fixing bolt, so it'll strip easily if you (or your buddy mechanics) aren't careful. Perhaps that's why the tool itself is nylon.BobShort said:For my money I'd definitely go 540s. For $50 you can't go wrong (http://www.chainreactioncycles.com/Models.aspx?ModelID=3760)