Shimano Ultegra 6870 Di2 11 Speed Electronic Rim Brake Groupset
What’s included: Shifters (ST-6870), front derailleur (FD-6870), rear derailleur (RD-6870-SS), battery (SM-BTR2), junction box A, junction box B (not pictured but is included), Di2 wires. Brake type: Rim brake.