Campagnolo Record Carbon 10 Speed Group Set, 175mm Cranks, 53/39, 2x10s, English Threaded Bottom Bracket. No Chain or Cassette. Parts have very low miles. Parts were on a bike that was basically sitting as a display bike in the original customers home. In my professional option as a mechanic for 35 years this group-set has less than 300 miles on it, if that. Set works great, jist from age the cranks have a few clear coat blemishes but again allow miles and work perfectly. Only thing not Record is the BB is Chorus. Shifters Carbon Brake Levers. Chorus English Bottom Bracket 102mm. Crank Arm Fixing Bolts. Front & Rear Derailleur (front is braze on mount).