Quote Originally Posted by union View Post
I run and have been running a 520 chain and sprockets on my RC with no problems. Im using a DID erv2 chain. I dont think its made anymore so my next chain will be the erv3. Will it last as long as a 530 of course not but if you take care of it will last a long time.

For sprockets. Steel is the toughest and its what Im running right now. I have AFAM sprockets and when they are cleaned up they look close to new. An aluminum hard anodized is also a good chose but it wont last as long as the steel. I know people that have gotten thousands of miles out of them.

If you want to go 520 you should be fine as long as you buy good stuff.
I've run a 520 set up on my TL for 3 seasons now. Admittedly, I wore the rear sprocket (AL) quickly the first time around because I was lazy about adjusting the chain. I'm on my second set (I've put over 20k on the bike) and it's been fine. I ride pretty smoothly, well as much as possible with a twin, and don't stick the front in the air much at all, but I think anyone would be fine with a 520 as long as they take care of it.