Whats a good target weight I should look for in a XC/AM wheelset? my current set up is generic rims/hubs (no names) with Conti Mountian Kings 2.4 tires and the whole set weighs around 13lbs. the tires are brand new so I kinda dont want to get new ones for now. On bikeman.com they have Shimano saint hubs laced with DT spokes to Sun rhyno Lite rims for only $99, would that set up be decent? I run a Cdale prophe as well. Thanks for your time.