SHIMANO ULTEGRA R8170 DI2 DISC GROUPSET
SHIMANO ULTEGRA R8170 DI2 DISC GROUPSET
With technology trickling down from flagship Dura-Ace, Shimano's Ultegra R8170 Di2 Disc Groupset is better than it has ever been before. It perfectly balances performance with value, and the components are slick, reliable, and only create a minimal weight penalty compared to Dura-Ace.
Shifting is flawless, and faster than previous iterations, while operating almost silently. This is thanks to Hyperglide+ tooth profiles, meaning that the chainrings and cassette have an improved connection with the chain, essentially improving shifting under load, across the cassette. Adding in a 12th sprocket, progression through the gears is smoother too.
Braking is equally impressive, and redesigned calipers provide more clearance between rotor and pad, reducing rubbing and scraping noises frequently heard in wet or gritty conditions. Servo Wave levers, which have been redesigned for improved ergonomics, speed up the initial travel so pad and rotor meet sooner, creating a more progressive feel.
Aesthetics are sleek, with the semi-wireless system eliminating wires from shifters to derailleurs. The battery remains mounted in the seatpost or seattube, and this is wired to the derailleurs, while the charge port is now incorporated into the rear derailleur, so there is no junction box required. CR1632 coin cell batteries in the shifters provide 1.5 to 2 years of life and easy access to the port on the rear mech makes charging the rest of the system easy.
There are plenty of configurations to choose from, including various crank lengths and both mid-compact and compact chainrings, making this groupset a fantastic option for the majority of riders looking to upgrade their bike to an electronic system.
Includes
Shimano Ultegra R8170 Di2 Disc Groupset - 12 Speed
Chainset: FCR8100A04 FC-R8100 Ultegra 12-speed double chainset, 50 / 34T 170 mm
Cassette: CSR810012130 CS-R8100 Ultegra 12-speed cassette 11 - 30T /11-34T
Chain: CNM7100126Q CN-M7100 SLX/105 chain with quick link, 12-speed, 126L
Rear Derailleur: RDR8150 RD-R8150 Ultegra Di2 12-speed rear derailleur E-tube
Front Derailleur: FDR8150F FD-R8150 Ultegra Di2 12-speed front derailleur E-tube, braze on, double
Left Shifer: R8170DLR ST-R8170 bled hydraulic disc, Di2 E-tube STI set, flat mount calliper, LH rear
Right ShifterR8170DRF ST-R8170 bled hydraulic disc, Di2 E-tube STI set, flat mount calliper, RH front
Rotor: RTMT800SSI RT-MT800 disc rotor with internal lockring, Ice Tech FREEZA, 140 mm/160mm
Di2 Cable Front: EWSD300IL060 EW-SD300 E-tube Di2 electric wire, 800 mm, black
Di2 Cable-Rear: EWSD300IL090 EW-SD300 E-tube Di2 electric wire, 1400 mm, black
Battery: BTDN300 BT-DN300 Di2 internal mount battery, 3-port
Charging Cable: EWEC300 EW-EC300 battery charging cable, 1700 mm
Due to the wide variety of bottom bracket types offered in frames this groupset DOES NOT include a bottom bracket