How to: Sram 2x10 to 1x10 I'm thinking on converting my Sram transmission 2x10 to 1x10, this is with a single chain ring.

My biggest doubt is how to prevent cross chaining, do I need to get a special chain or how do I prevent the excessive wear out and grainy feeling when I'm in the biggest cassette ring.
If it's a mountain bike, you could use a chain guide like this one. The rollers keep the chain aligned on the chain ring at all times and the rear provides tension as it normally would. 



NB: I'm not necessarily recommending this one in particular, just it or something like it. I have no experience with this particular model. 

I'm not sure if they make anything comparable for road setups. I wasn't able to find anything with a quick Googling.