1 of 3 Shimano Ultegra R8170 12s Di2 Hydraulic Disc Electronic Group Reviews for the product - Shimano Ultegra R8170 12s Di2 Hydraulic Disc Electronic Group - Back to product 7 Product Reviews - Average rating 4.9 / 5 (Best Rated | Worst Rated | Most Recent | Oldest)Click to review this product Exactly as described!fizza - 10th October 2024Awesome groupset. Excellent price from eurobikeparts. Arrived quickly and all components exactly as expected. Thanks! First ever Di2JTR19 - 10th October 2024For all the years I've been riding, and all the various bikes I have owned, this is the first time have purchased and used a Di2 system (first time with any electronic component group). Had to read through the manual to learn how to set it up on the bike, but this was so easy to set up and dial in. The brakes on this current generation Ultegra are improved over the prior R8000 generation, and were easier to bleed. All in all I am very happy with this kit and now understand what I've been missing out on with Di2. High Performance at a modest price!Schlegel - 23rd August 2024Love this group set! Purchased for a new build (secondary road bike). I had been using Dura Ace on my last 5-6 builds, I owned a retail bikeShop for 40 years so I always went for the top end knowing I’d use it for years. For my latest build I needed to be more budget minded so I opted for the Ultegra. I found this EuroBikeParts through some google searches and they offered the group at a great price! Everything arrived as expected. As for the functionality, it is very hard to discern any differences between it and my Dura Ace bikes. I did have a small issue with one of the components, I reached out to EBP and they promptly resolved! Great customer service. Accurate, SimpleJT - 10th January 2024Ultegra 12-speed is a fantastic groupset. This is classic Japanese kaizen, continuous improvement. The only thing I would like to see is more chain dampening on the RD for road use, more like GRX SRAM's latest road groupsets. 8170 groupMatt Johnson - 03rd February 2023Sleek design and smooth shifting. Loving it. Also, EuroBikeParts shipped group day after I purchased it and I got it in 3 days in Florida ready for weekend project. Great upgrade from ultegra mechanicalNick M - 06th October 2022Set up is super simple compared to 11s, parts look amazing and shifting is precise. I couldn't be happier. Excellent product and serviceJuan Rodriguez - 05th July 2022THis product in amazin y high quality. Very easy to install. The service in the store also very helpfull.Click to review this product Related Products Shimano Dura Ace R9270 12s Di2 Hydraulic Disc Group List Price: $4,499.95You save $1,500.00Price$2,999.95