Used Retro shimano Ultegra 6600 10 speed groupset in very good condition for age. Ideal for winter bike or Retro project. The set has been used so it has got cosmetic marks from general use. Some scratches to the shifters and to the non drive side as shown. The cassette is 105 5600 12/25 and the chain is a new KMC 10EL which will need sized. The front mech is a band on 34.9 with 28.6 shim.