Originally Posted by
Landgolier
I have RD's they are round as hell, and that's with the stock ring, not even something nice like a TA. Runout tolerance on cranks has gotten a lot tighter than it used to be, and chainrings are better than they've ever been. Also, 55x22 may be more gear than a single normal track chain can handle. No biggie, you can join two, but it may be a problem.
I appreciate your post. I will consider the RD and the chain issue is definitely something I had not thought of! Maybe I'll just save my 22 for XC SS rig. I did a mountain climb on it this Summer where I was crying with my 19:34.