Mountain bike groupsets: everything you need to know - BikeRadar
2014 Shimano: 29"er Friendly- 27.5"er Intros, New Deore Group - Twenty Nine Inches
Shimano Deore Preview - BikeMag
New 2014 For Shimano Deore Xt M780 Xt Group 30 10-speed Group Set Groupset 170mm Xt Crankset Dyna-sys Silver Mountain Bike Group - Bicycle Crank & Chainwheel - AliExpress