This is a Shimano 105 mechanical component set. It's a complete set made up of leftover parts from converting a 105 mechanical to Di2, plus some new parts. It includes both new items and parts removed from complete bikes (new bikes). Shimano 105 Mechanical Component Set Front Derailleur (r7100, removed) Rear Derailleur (r7100, removed) Front Brake Lever (r7120, removed) Rear Brake Lever (r7120, removed) Front Disc Brake (r7170, new) Rear Disc Brake (r7170, new) Disc Brake Rotor (rt70 140mm, new) Disc Brake Rotor (rt70 160mm, new) Front Chainwheel (r7100 170mm 50-34T, new) Sprocket (r7101-12 11-34T, new) Chain (m7100 12s 116L, new) Individual sales are not possible.