Shimano - Di2 Ultegra 6870 External Fit 11 Speed Groupset

Product Description

Ultegra Di 2 series with electronic shifting is pro-proven as it is a direct trickle down from the Dura Ace group. It stands for state-of-the-art technology, proven in pro races, the technologies used in the new Ultegra 6870 series are perfect for the racer or enthusiastic weekend rider. The big advantage of using a Di 2 groupset is that the gearing self-aligns whilst being used, & is fully supported by the Shimano E-tube programme which means that you can fine tune & run diagnostics. This can be downloaded for free from Shimano. (http://e-tubeproject.shimano.com/) Using the Di 2 system will ensure that you & your bicycle ar performing in harmony together. Please note, you will need to purchase a diagnostics tool to perform firmware updates as this is not part of the external system.