Just installed a 29er front end; breathing new life into what is still a beautiful bicycle. The trails in Phoenix are steep and rocky, and now the head tube angle sits at a mere 68 degrees unloaded, finally making my Mantra rideable in this region. [/b] It weighs 12kg with a 100mm RockShox Reba Race fork and Bontrager Race 29er wheel. It rides exactly like I need it to out here. Really can't get enough of this bike!