Shimano Ultegra 6870 Di2 old Groupset

With the Shimano Ultegra 6870 DI2 Groupset shifting became easier, faster, and effortless: you only need to push the shift-button. The revolutionary Di2 electronic shifting system with SEIS (Shimano Electronic Intelligent System) takes the current high-level shift performance by Shimano to a whole new level, and one never achieved before. The increased accuracy, fluent operation, and reliability of electronic shifting makes changing gears faster and eliminates missed shifts.

This innovative shifting technology is based on the famous Shimano Index System (SIS). With the Di2 technology the shifting action is passed to the derailleurs using an electronic signal instead of a mechanical cable transmission.

• Crankset: Ultegra 11s 6800, 50/34, 687 grams *
• Battery: DI2 SM-BTR2, 51 grams *
• Junction Box: SMEW90A, 19 grams *
• Brakes: BR6800, 343 grams *
• Shifters: Di2 ST-6870, 304 grams *
• Wiring + junction box: EW-SD50 and ISMJC41, 45 grams *
• Rear derailleur: DI2 RD-6870 SS (short cage), 255 grams *
• Front derailleur: FD6870F, 108 grams *
• Chain: CN-HG700, 262 grams *
• Cassette: CS-6800 11/28, 11-12-13-14-15-17-19-21-23-25-28, 249 grams *
• Bottom Bracket bearing SM BBR-60
• Comes with brake cables 191 grams *
• Comes with battery charger ISMBCR2