This was top of the line in 2017. Adjustable rear IsoSpeed allows the rider to dial in a soft or firm ride in the rear and to match terrain or rider preference. It can fit up to 32c tires and has seen a fair amount of dirt and gravel. Shimano Di2 Ultegra group with R785 shifters. Compact crankset 50x34 with 11-34t cassette, good for about any road ride. Upgrades include Mavic All Road Pro wheels and Bontrager RXL carbon bars. There are a few scratches, nothing crazy . This bike was $6500 new, and it has otherwise been taken care of accordingly. Note the scuffing along the rear triangle and head tube. Bike will be professionally packed and shipping will be handled by Bike Flights. Any shipping overages will be refunded to the buyer.