Group Shimano Dura Ace DI2 R9200 F/Wheel, 170 mm, 50x34T, 11-30This group contains:IFCR9200CX04 - SHIMANO DURA-ACE FC-R9200 12-speed crankset 170.0 mm 50-34T Color seriesIFDR9250F - SHIMANO DURA-ACE Front derailleurs (Di2 spec.) FD-R9250 Double Down Swing Braze-on Color seriesIBRR9200AR82A - SHIMANO DURA-ACE BR-R9200 brake caliper Rear Color seriesIBRR9200AF82X - SHIMANO DURA-ACE BRR9200SET brake caliper Front Color seriesICSR920012130 - SHIMANO DURA-ACE CS-R9200- cassette12 12-speed 11-12-13-14-15-16-17-19-21-24-27-30TISTR9250L - SHIMANO DURA-ACE Derailleur/brake control (for racing handlebars) ST-R9250-L DUAL CONTROL LEVERIRDR9250F - SHIMANO Rear Derailleur 12s Di2-RD-R9250 Dura-Ace IBTDN3001 - SHIMANO Battery (Di2 spec.) BT-DN300 Internal 3,7 WhICNM9100126Q - SHIMANO Chain CN-M9100 HG 12-speed E-BIKE RATED 126 links QUICK-LINKISTR9250R - SHIMANO DURA-ACE Derailleur/brake control (for racing handlebars) ST-R9250-R DUAL CONTROL LEVERIEWEC300A - SHIMANO Charging cable EW-EC300