Iam about to put a Fat tire setup on the front of my 29er epic 2010, I already ride it with a steel front fork I hated the reba. Whats the biggest difference besides width from the 100mm wheel to the 135mm plus and minuses.I know its going to be my fist hit of the Fat bike crack then i will probaly be a full Fat head. Iam so glad i found this forum iam always on the 29er forum thanks for any tips.