ime, chain and cassette wear ratio corresponds to brake pad and rim wear, roughly 3:1
Hmm, I've not calculated it that carefully, and I'm incredibly idle about changing components that still work. Damn, I might have start a new spreadsheet
![Grin ;D](/forum/Smileys/classic/grin.gif)
Anyway, I just tried to tighten the slack-as-fuck* chain on my commuter, to no avail, as the wheel's already as far back as it'll go in the dropouts.
I was hoping to ride a different bike tomorrow, but I've just caught the forecast, and I'll stick with studded tyres, thanks.
*technical term