Shimano Ultegra 12-speed Di2 Disc R8170 / R9180 Time Trial Groupset
The Shimano Ultegra R8100 Di2 time trial and triathlon groupset with the Dura-Ace time trial disc shift-brake levers ST-R9180 and, optionally, the Dura-Ace bar-end shifters SW-R9160
Shimano does not manufacture 12-speed Di2 time trial shift levers. Therefore, the Dura Ace ST-R9180 and SW-R9180 Di2 shift levers are used and are then fitted complete with the Di2 cables. To ensure the shifters work with the 12-speed components, all Di2 components must receive the latest firmware update. This can be done after assembly using the Shimano app and a mobile phone, tablet, PC or the SMPCE02B diagnostic device. We also offer this update as an optional service.
Contents of the Shimano Ultegra R8170 / 9180 Di2 Disc drivetrain and groupset:
- Shimano Ultegra Di2 rear derailleur, RD-R8150
- Shimano Ultegra Di2 front derailleur, FD-R8150
- Optional derailleur clamp for 34.9 and 31.8 mm
- Shimano Dura Ace Di2 STI, Dual Control Disc TT shift/brake levers, 12/2-speed, ST-R9180
- Shimano Dura Ace brake calipers, folding mount, BR-R9270
- Shimano disc brake hoses 100 and 170 cm, SM-BH-90-JK-SSR
- Shimano small parts for assembly and cable trimming, oil-free
- Shimano Di2 cable set: 3 EW-SD300 cables, 1 EW-SD50 cable, 1 EW-JC130 Y-cable
- Shimano Junction Port, SM-JC41
- SD50-SD300 adapter, EW-AD305
- Shimano Di2 battery, internal round, BT-DN300
- Shimano Ultegra power meter crankset, 165–175 mm length, 52/36 or 50/34 teeth, FC-R8100-P
- Shimano Ultegra cassette, in 2 sizes, CS-R8100
- Shimano chain, CN-M8100
- Optional Shimano Dura-Ace Di2 bar-end shifters, 12/2-speed, SW-R9160
- Optional charging cable
- Optional Shimano Ultegra bottom bracket, SMBBR60 BSA or Italian thread or Pressfit BB86, or Wheels MFG bottom bracket for BB30, Pressfit30, BBright or BB386 bottom bracket shells
- Optional Shimano Ultegra Centerlock brake discs with internal tool holder RT-MT800-I
- Optional firmware update
Shimano Ultegra RD R8150 Di2 rear derailleur:
The new Ultegra rear derailleur is the heart of the new 12-speed Di2 components. It provides the wireless functionality and connection to external components, and also houses the charging port. The rear derailleur also houses the transmitter, which enables wireless communication with the STI shifters and other external devices, including those from third-party manufacturers. Furthermore, it features the status LED and the adjustment button, which is used, for example, to switch between Synchro-Shift modes, meaning that the previous Junction A port, SM-RS910, is no longer required.
Precise, lightning-fast shifting at the touch of a button, in any situation. The Shimano Ultegra Di2 RD R8150 rear derailleur is even more compact and lighter than its predecessor and features E-Tube connectors for extremely easy installation. Equipped with a crash mechanism that disconnects the connection to the motor in the event of strong external forces to prevent damage.
Shimano Ultegra FD R8150 Di2 front derailleur:
Lighter, faster and more aerodynamic: the Ultegra 12-speed Di2 front derailleur. Designed for chainring sizes ranging from 50/34 to 54/40 teeth, the new 12-speed Ultegra Di2 front derailleur operates even faster and more precisely. More compact and faster than ever before, the Ultegra R8150 front derailleur delivers shifts with digital precision in all conditions. By combining Shimano’s new Di2 platform with the road bike version of Hyperglide+, the Ultegra R8150 front derailleur shifts between chainrings as quickly and seamlessly as no other model on the market.
Shimano Dura Ace Di2 STI R9180 TT Disc Shift-Brake Lever:
With the ST-R9180 STI Disc shift-brake lever, Shimano introduces a highly compact shift-brake lever designed for time trial handlebars, hydraulic disc brakes and the electronic Di2 shifting systems, marking another milestone in the development of hydraulic disc brake systems for road bikes. The new Dura Ace Di2 STI levers offer optimal ergonomics thanks to their adjustable grip width. The Dura-Ace Di2 shift-brake levers are fitted with carbon brake levers. They shift extremely quickly and precisely. Thanks to electronic transmission of shift commands, these are executed without delay. Operation is similar to that of mechanical STI levers, with shifting at the touch of a button. The new 11-speed shifters are also equipped with the programmable Multishift function. Shimano’s engineers have succeeded in integrating a mineral oil cylinder, including a complete braking system, into the still very compact mechanical shift-brake levers. The brake levers are made from multi-layer composite; this technology guarantees maximum stiffness, durability and a lightweight design. Thanks to the improved position of the brake cable, a smooth braking action is achieved, leading to optimised control in extreme conditions. The Dual Control shift/brake levers can be optimally adjusted to the rider via a grip width adjustment and are also very well suited to riders with small hands. With the new shift levers, shifting can be performed much more quickly. This is achieved through a 20 per cent shorter cable. The grips feature an ergonomic design for greater comfort – even over long distances.
Shimano Dura Ace Di2 STI SW-R9160 TT Bar-End Shifters:
The electronic Shimano time trial shift lever for the Di2 system. The Di2 shift levers SW-RW9160 are mounted on the handlebar ends of the time trial extensions. Optionally, the SW-R9150 second shifter can also be fitted, allowing the rear gears to be changed quickly and without re-gripping in any riding situation. The SW-R9160 Di2 shifters with their single-button design offer the ability to operate the front derailleur and rear derailleur in the aero position
Shimano Ultegra Disc Brake Caliper BR-R8170:
The BR-RS8170 road bike disc brake calipers for the 12-speed Ultegra groupset. These calipers are compatible with all Shimano disc brake levers. Recommended brake discs: RT-MT800. Thanks to the 10 per cent greater spacing between the brake pads, the brakes can be adjusted more effectively and noise is minimised.
The new Ultegra BR-R8170 brake caliper offers improved modulation, a quieter braking system and an extremely simple bleeding procedure. The Ultegra R8170 disc brake caliper offers road cyclists a completely new sense of control thanks to its improved modulation and faster-acting initial braking force. Despite its flatter design, the system produces less braking noise than ever before and is easier to maintain. The bleeding system has been redesigned and made significantly simpler.
Synchro-Shift technology
Synchro-Shift technology greatly simplifies gear changes and significantly reduces the number of decisions riders have to make whilst riding. Particularly in critical race situations or when riding at the limit, riders often have to juggle a multitude of decisions alongside the physical strain, which can frequently lead to errors and poor choices. The fewer decisions there are to make, the better the decisions will be and the more attention can be focused on the race. This is precisely what Shimano Synchro-Shift technology enables, always selecting the optimal next-higher or next-lower gear combination, regardless of whether this requires shifting at the rear derailleur and/or the front derailleur.
Shimano Synchro-Shift functions
- Full Synchro-Shift: The front derailleur reacts to the shifts the rider makes on the rear derailleur. Essentially, this means that only one shifter with two levers is needed to operate both the rear and front derailleurs.
- Semi Synchro-Shift: The rear derailleur responds to the gear changes the rider makes on the front derailleur. The rear derailleur automatically performs the necessary compensatory shifting.
Shimano Di2 installation:
The Dura-Ace shift levers are used with the 12-speed Di2 Ultegra time trial components. To ensure these also function in 12-speed mode, all Di2 components must receive the latest firmware update. This can be done after installation using the Shimano app and a mobile phone, tablet, PC or the SMPCE02B diagnostic device. We also offer this update as an optional service.
The shift levers are connected to the SM-JC41 distribution box using the EW-JC130 Y-cable. From the SM-JC41 port, the EW-SD50 cable runs to the EW-AD305 connector. From the EW-AD305 distribution unit, the EW-SD300 cable then runs to the battery, as it does from the rear derailleur and front derailleur.
Shimano Ultegra Powermeter Power Measurement Technology:
The newly developed power meter crankset from the Ultegra R8100 series with power measurement on both sides. The power meter’s central unit is compactly housed behind the crank spindle, and the strain gauges are integrated into the left and right crank arms. Thanks to the battery integrated into the axle, the Bluetooth interface and the ability to update the power meter’s firmware via the E-Tube platform. The ANT+ Bluetooth® LE interface is compatible with many cycle computers.
Shimano Ultegra R8100 crank arms
Hollow-forged chainrings, thin-walled hollow-forged crank arms and a reduction in the outer surface area reduce the weight of the new Shimano Dura-Ace FCR 9100 crankset to 609 grams. The design of the 2x11-speed Hollowtech II crankset not only boasts a look and aesthetic with cult potential, but also ensures enhanced performance. A wider, yet lighter than the previous model, crank arm and the large chainrings with Hollowglide technology increase stiffness and optimise power transfer to the pedal.
Optional bottom brackets:
We offer optional bottom brackets from Shimano, Wheels Manufacturing and FSA for the Shimano Ultegra R8150 Di2 groupset. This allows the crankset to be fitted into all standard bottom bracket shells.
Shimano CS-R8101 cassette:
The Shimano Ultegra CSR8101 cassette, featuring two large sprocket blocks on an aluminium spider, offers Shimano’s outstanding smooth shifting performance combined with low weight and long-lasting durability. Shimano offers replacement sprockets for these cassettes. This means that if only a few are worn, they can be replaced cost-effectively.
The 12-speed cassettes are compatible with both the new HG12 and the previous HG11 freehub bodies. The new 12-speed freehub bodies feature finer teeth. This allows for a significantly better connection between the cassette and the freehub body.
Shimano CN-M8100 Chain
The Shimano chain for 12-speed road bike and MTB drivetrains. Thanks to the special asymmetrical outer and inner links and Shimano’s SIL-TEC surface coating, friction is minimised, performance is optimised and dirt adhesion is reduced.
The chain is perfectly matched to the 12-speed Shimano chainrings with Dynamic Chain Engagement+ (DCE+) tooth profiles. The HG Plus chain has been completely redesigned and features even finer, precision-machined contact surfaces with the sprockets and chainrings, particularly on the inner links. Furthermore, the inner links are chrome-plated, making them even more durable whilst delivering excellent shifting performance when shifting up or down.
Compatible bottom bracket shells – bottom brackets
Modern frames now feature a wide variety of bottom bracket shells. Shimano only offers compatible bottom brackets for some of these. To ensure the Ultegera groupset fits all frames, we supply optional FSA or Wheels MFG bottom brackets for the bottom bracket shells where Shimano does not offer a compatible option. Wheels Outboard bottom brackets are significantly more durable than standard press-fit bearings, as the cup halves are bolted together, ensuring they sit firmly in the frame. Wheels bearings are available in various grades: ABEC3 standard bearings, angular contact bearings and ceramic bearings.
- BSA threaded housing, 68 mm installation width
Shimano Dura Ace SM-BBR60B bottom bracket - ITA threaded housing, 70 mm installation width
Shimano Dura Ace SM-BBR60I bottom bracket - Pressfit BB86 housing, installation width 86.5 mm, press-fit diameter 41 mm, Shimano
SM-BB71-41B bottom bracket or Wheels MFG Outboard
BB86-OUT bottom bracket - BB30 shell, installation width 68 mm, press-fit depth 42 mm Wheels MFG Outboard
BB30-OUT bottom bracket - Pressfit 30 housing, installation width 68 mm, press-fit depth 46 mm Wheels MFG Outboard
PF30-OUT bottom bracket - BBRight shell, installation width 79 mm, press-fit depth 46 mm Wheels MFG Outboard
BBRIGHT-OUT bottom bracket - Housing BB386, installation width 86.5 mm, press-fit depth 46 mm, Wheels MFG Outboard
386EVO + 386EVO-SHI bottom bracket - Trek BB90 shell, installation width 90 mm, press fit 41 mm FSA
230-600 bottom bracket
Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com