Originally Posted by
mutant eyebrow
Not eating asphalt seems like a pretty good reason. I've dropped the chain twice before when using a Sram PC1 chain and Shimano 3/32" freewheel. I don't run a lot of slack either.
Since adding the spacer, replacing the chain with a KMC 710SL and using a Shimano SF-1200 freewheel there have been no more issues.
I get tired of reading that 5mm or 7mm off is okay. I also think mixing 1/8 and 3/32" components isn't the best idea. It's just my opinion, so take it at that.
Well mate, there are many, many cyclists everyday proving your opinion wrong. If you're throwing chains, there is something else at work rather than a few mm of chainline offset (worn components springs to mind - just a thought, not an accusation). You're welcome to ensure that you have spot on chainlines and use matching components, I do myself on my good bikes, however, please don't add to the fear that many newcomers have of this game.