Up for auction is a complete Shimano Ultegra 6870 Di2 groupset which includes:

- 6870 Di2 Shifters

- 6870 Di2 Front Derailleur

- 6870 Di2 Rear Derailleur Short Cage

- 6800 Crankset 52/36 172.5mm

- 6800 Cassette 11-28T

- 6800 Chain

- 6800 Brake Calipers

- BT-DN110 Di2 Battery

- Junction A box

- Junction B box

- All Di2 wires for up to 54-56 (medium) sized frame

- Di2 Battery Charger

Groupset has under 400 miles and is in excellent condition! I’ve upgraded the battery to the newest version which enables you to have semi-synchro shifting like what is offered on Ultegra 8050 and Dura Ace 9050 groupsets. Latest firmware has been downloaded. An optional upgrade I would consider getting along with this groupset is Shimano’s Bluetooth module which allows your Garmin to display the gear combination and the Di2 battery level. A piece of advice though regarding Shimano’s E-tube project phone app - don’t use it to attempt any changes or updates!!! It will freeze the system, and will give you brain damage while you try to get the system working again. Ask me how I know. Save yourself the stress, and connect the system to a PC instead and download Shimano’s PC app instead. You can make some neat adjustments to the semi-synchro feature. If you’re unaware, semi-synchro allows you to switch gears from smallest to largest gear combo and back again with just the right shifter. Start out in 36 - 28, switch up, and the system will automatically switch to the 52 chainring and change the rear cassette simultaneously in the next correct gearing increase. It’s super neat and helps maintain your speed and cadence since you’re not letting off the pedals as much while trying to make all the gear changes yourself.

Feel free to ask any questions, and be sure to check out my other auctions!