Difference between LX and DX for Trek 520
I heard people switching the crankset on the Trek 520 for a 44/32/22 instead of the 52/42/30. In most
cases, people switched it for a LX 44/32/22, but also heard people switching for the DX 44/32/22.
What is the difference between the LX 44/32/22 and the DX 44/32/22 ?