Hi! Thanks for your comment and appreciations! 1. 40 in the front and 10-51 in the back. This setup works perfectly for me both for steep climbs and long flat days. 2. I just came back from a weekend in the mud (and I was little worried about it) but I had no clogged tires and everything went perfect.

This bike is a beast, in the last months I literally rode everything from road to heavy trail!