I have a Specialized Rockhopper Comp. It has the stock manitou axel fork with 80mm of travel. I am looking at a Rockshox Reba 80mm, Mantiou r7, and Manitou minute. My question is do I have to get a 80mm fork to stay in geometry of the bike or can I go with a 100mm fork. Will it make that big of a difference? I just found this Reba on ebay but the price is really low and don't know if its shady? How can I tell if that fork will fit my bike?
http://cgi.ebay.com/09-RockShox-Reba...ayphotohosting