Shimano Ultegra Di2 R8100 Groupset Review 2026: Electronic Shifting Tested
Overview Ultegra Di2 R8100 sits directly below Dura-Ace Di2 R9200 in Shimano’s electronic road groupset range, and above the newer 105 Di2 R7150. For triathletes weighing up an electronic upgrade, it’s the tier most people actually land on: nearly all of Dura-Ace’s shifting feel and features, at a meaningfully lower price. We’ve gone through what’s…
