105 R7100 Di2 12 Speed Road Bike Groupset Size:172.5mm Crankset Our fastest ever rear shifting

Our fastest ever rear shifting

rounded edges at the spindle

Added protection against contaminants

tube TechBELT 700x32C 330g 60tpi

Our Tyre & Cassette Brush is shaped and contoured specifically to clean rims and spokes with ease

105 R7100 Di2 12 Speed Road Bike Groupset Size:172.5mm Crankset Our fastest ever rear shiftingThe new Shimano 105 Di2 brings electronic gearing to a more entry level market making it more affordable. Get huge benefits with smoother gear shifting, gear ratios made for all round riding, no more brake rub, and more. Shimano has refined many aspects of their groupsets over the years. Every new generation solves a wide range of issues from the previous generation. Shimano 105 Debut. The new Shimano 105 brings Di2 shifting to a new set of riders.