This past week I did my longest ride of the year, on my new Tallboy Carbon... just over 3 hours, just over 30 miles, and just over 2000 ft of climbing. I basically did 2 1/2 laps of my favorite local trail, and to get some more climbing in, I did a couple climbs of the road that the trail crosses. Needless to say, my legs are toast! The bike is awesome though... was a little worried about doing so much climbing on this bike for fear I would have rather been on one of my hardtails, but this Santa Cruz seems to climb just as efficiently as my Cannondale Flash 2 29er does. And it's sooooo much more comfortable over the rough parts of the trail. The Tallboy Carbon is hands down the best bike I've owned to date, without question! I've always been a hardtail guy, but I have a feeling my Cannondale and Yeti Big Top are going to see less and less trail time. The Tallboy Carbon is that good.