Shimano Complete group GRX 825 DI2 12V 48x31T

Shimano GRX 825 DI2 12-speed Double group, Disc brakes 170 mm, 48x31D, 11-34. This group contains: IRX8251DLF6SC100A - SHIMANO GRX Brake (Kit) BRRX820KTSTRX825 Left / front Resin with fin Assembled front mount for 160 mm disc 1000 (Black)IRX8251DRRDSC170A - SHIMANO GRX Brake (Kit) BRRX820KTSTRX825 Right / rear Resin with fin Without adapter, for a rear mounting thickness of 25 mm 1700 (Black) ICSR810112134 - SHIMANO ULTEGRA Cassette CS-R8101-12 12-speed 11-12-13-14-15-17-19-21-24-27-30-34T IFDRX825F - SHIMANO GRX Front derailleurs (Di2 spec.) FD-RX825 Double Down Swing To braze Series colour IEWJC304 - SHIMANO Junction-B (Di2 spec.) EW-JC304 4-port Junction IBTDN3001 - SHIMANO Battery (Di2 spec.) BT-DN300 Internal battery 7.4 V 3.7 Wh IRDRX825A - SHIMANO GRX Rear derailleur (Di2 spec.) RD-RX825 12-speed Compatible Direct Mount ICNM8100126Q - SHIMANO Chain CN-M8100 HG 12-speed E-BIKE RATED 126 links QUICK-LINK IWE EC300A - SHIMANO Charging cable EW-EC300 IFCRX8202CX81 - SHIMANO GRX Crank FC-RX820-2 HOLLOWTECH II 12 speed 170.0 mm 48-31T Series colour Without bottom bracket parts Without CG