Shimano Ultegra R8100 Di2 12 Speed Groupset 2022
|Options||172.5mm 52/36 11/30 In Store Now
172.5mm 52/36 11/34 In Store Now
172.5mm 50/34 11/30 In Store Now
172.5mm 50/34 11/34 In Store Now
|Description||NEW! Shimano Ultegra R8100 Di2 12 speed groupset.
ULTEGRA R8100 series moves to 12-speed with wireless Di2 shifter function and faster derailleurs.
For the first-time ever ULTEGRA includes a power meter option and full-carbon tubeless disc wheels.
Where new DURA-ACE is designed for those who are looking for every competitive advantage possible, new ULTEGRA is the real-world application of those technologies. The R8100 series shares the same DNA as the R9200 series, offering incredible performance across all functions, combining the science of speed pillars to help riders achieve greater performance than ever before.
ULTEGRA developments, like DURA-ACE, can be broken down into five development areas: shifting platform, control interface, brake system, drivetrain system and wheel system.
ULTEGRA R8100 shares the same revised Di2 platform as DURA-ACE R9200 to improve shifting speed whilst making the shifter-derailleur connection wireless, and still ensuring absolute reliability.
New Dura-Ace and new ULTEGRA share the same platform so ULTEGRA users benefit from:
The same new Di2 platform which improves the motor design in the derailleurs, decreases the processing speed (i.e. the moving time between motor and gear mechanisms) and the transmission performance to enable Shimano's fastest-ever shifting. This results in a 58% decrease in ULTEGRA rear derailleur operating time and a 45% decrease in ULTEGRA front derailleur operating time over the previous DURA-ACE RD-R9150 rear derailleur.
Absolute reliability from a wired connection where it makes sense. New smaller diameter SD-300 wires connect the Di2 battery (BT-DN300) to front (FD-R8150) and rear derailleurs (RD-R8150). One internal battery makes for a simple charging solution and ensures a stable and high voltage connection to the derailleurs, contributing to Shimano's fastest-ever shifting. Tests show that the BT-DN300 battery lasts for 1000 km between charges. The STI shifter buttons are powered by coin-style CR1632 batteries which last for approximately 1.5-2 years of usage.
A high security, fast processing and low power consumption proprietary chip circuit, which significantly decreases the chance of interference from external devices.
The new ULTEGRA rear derailleur is now the point at which the system is charged (replacing Shimano's SM-BCR2 charger) and it provides the wireless connection to STI shifters and other 3rd party devices (replacing the EW-WU111 wireless unit). Plus its integrated design provides the control point for changing Di2 operations and Synchronized Shifting modes, replacing the previous handlebar or in-frame Junction-A (SM-RS910) button.
Groupset price includes:
ST-R8170 STI Levers, Calipers & Hoses
FC-R8100 Chainset (Crank Length: 172.5mm, Chainrings: 52/36 or 50/34)
RD-R8150 Rear Derailleur
FD-R8150 Front Derailleur
CS-R8100 12 speed Cassette (Ratio: 11/30 or 11/34)
CN-M8100 12 speed Chain
BT-DN300 Di2 Internal Battery
EW-SD300 E-tube Di2 electric wire 950mm
EW-SD300 E-tube Di2 electric wire 1200mm
EW-EC300 Charging Cable
(Groupset price excludes disc rotors & bottom bracket - available separately)
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.