When developing the Ultegra R8100 series, Shimano took a holistic and 100 % performance-oriented approach, because great speed means great responsibility. Faster than ever before, the 12-speed road groupset scores with unparalleled control and comfort anytime and anywhere – whether in an everyman race, on the hunt for a personal best time or on a companionable ride.

As with the Dura Ace R9200, not only does Hyperglide+ make its way into the Ultegra's components, also its Di2 parts rely on Wireless technology to simplify operation and ensure smooth shifting.

Specifications
Accuracy: ±1.5%
Force measurement: left + right, 24 strain sensors
Cadence measurement: via magnet
Connectivity: Bluetooth / ANT+
Ports: 1x EW-EC300
Battery type: Li-Ion
Battery life: approx. 300 hours

Mfr Claimed Weight
625g