This was an especially fun build for us with a few nice customizations. The cassette expanding sprocket is from OneUp Components who use a 16t sprocket in addition to the 42t and what they call a ‘RAD cage’ to produce a seamless one-by drivetrain. Shimano Saint brakes were a nice touch and we were very impressed by feel of the Rockshox Monarch Plus RC3 Debonair shock with it’s large volume air can. All in all this is a killer build!