Shimano Ultegra 6700 mini groupset with 105 10spd cassette and KMC chain. Double chainset with non drive side preload bung included – 53/39t 175mm length. Rear derailleur with upgraded jockey wheels to KCNC silver rollers – short cage. Front derailleur – braze-on. 105 10spd cassette 25-11t with lock ring. KMC X10SL chain with easy link. All taken from my TT/Tri bike as no longer needed. Good condition with 100′s of miles of life yet.