Finally, Shimano 105 Di2 affordable road groupset shifts electronic at 56% less than Dura-Ace!
Shimano 105 goes electronic with a Di2 overhaul that brings the same lightning-fast semi-wireless shifting, 12-speed drivetrain, and upgraded disc brakes as Dura-Ace Di2, but now at a price level less than half of the top-tier R9200 group. It’s even almost 1/3 cheaper than Ultegra Di2, with a scant few hundred extra grams penalty to
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