not a 520 thread, but

[ceo012384]

You don't need it...

... but a 520 should be fine as long as you maintain it well... which goes for all chains. I imagine as the lifetime of the chain goes on, you would want to keep a closer eye on roller wear and how much you have to adjust it for slack (i.e. to tell you how much it's been stretching...)

As far as materials, steel. Or the ti someone posted looked nice, but very expensive.

Originally Posted by Ebbs15

yeah I stayed away because I saw gas mans... and I figured that being a racer he probably swapped out sprockets much quicker than I would on the street...

Gas Man raced?