Mechanical or electronic: Mechanical. Brake type: Rim brake, standard center mount. Rear derailleur: Short cage. What’s included: Shifters (Super Record 11), front derailleur (Super Record 11), rear derailleur (Super Record 11), brake calipers (Super Record Skeleton). Condition: Groupset is in good condition. Mechanic’s notes: Scuffing on rear derailleur, minor wear on front derailleur cage, minor tire rub on calipers, minor scuffing on shifters. We will do everything in our power to resolve the issue.