Twenty Nine Inches has just taken delivery of a complete 2011 Shimano Dyna Sys 10 speed mtb group. This suite of parts, (and SRAM’s XX group), herald a new age in mountain biking- namely the 10 speed era. We are skeptical, but so far SRAM’s XX seems to have won our hearts in terms of performance, (not so much in terms of value). Will Dyna Sys XT 10 speed perform as well, or better? Will it be a better value? And what the heck is up with that gearing! These questions and more are what we will be trying to answer as we ride the latest offering in Shimano’s storied XT group.

xtdynasys2010 013

Note: Shimano supplied this group free of charge. We are not being bribed or paid for this review. We will strive to give our honest opinions throughout.