SPECIFICATIONS

Brand Name: SHIMANO

Origin: JP(Origin)

Hign-concerned Chemical: None

Type: Rear Derailleur

Components: Derailleurs

Gears: 24 Speed

Model Number: Di2 R8170

Derailleur Groupset Type: Electronic Derailleur system

Material: Alloy

Shimano Ultegra Di2 R8170 2x12-Speed Groupset

The Shimano Ultegra Di2 FD-R8150 Front Derailleur

The electronic front derailleur FD-R8150 for the Ultegra 2x12-speed road bike groupset by Shimano has a more compact design than its predecessor and is therefore even more aerodynamic. With a total capacity of 16 teeth, large chainrings with a maximum of 50 to 52 teeth can be shifted, whereby the shifting speed has been increased enormously compared to before. The front derailleur is compatible with a 44.5mm chain line and is designed for braze-on mounting. With the help of a suitable adapter, it is also possible to mount a clamp on the frame. It is connected to the battery via a cable, which in turn is also connected to the rear derailleur and possibly the STIs. Of course, the FD-R8150 has the tried and tested synchro and semi-synchro shift function, which enables automated interaction with the rear derailleur and thus makes shifting easier for you. The inner parallelogram and the guide plates of the derailleur are made of steel, the outer parallelogram is made of aluminum to save weight.

Use: Road

Series: Ultegra Di2 R8150

Speed: 2x12-Speed

Chain stay angle: 61 - 66 °

Chain line: 44.5 mm

Chainring size (max.): 50 - 52 teeth

Capacity: 16 teeth

Movement: down swing

Fastening: braze-on

Compatibility: HG 12-speed chains

Number of E-Tube connections: 1

Weight:Approx 110 g

The Shimano Ultegra DI2 RD-R8150 Rear Derailleur

The 12-speed rear derailleur RD-R8150 is the central element of the Shimano Ultegra Di2 road bike group when it comes to semi-wireless and fully wired shifting. It has even more to do than a conventional rear derailleur, because with the disc brake version it communicates wirelessly with the shift / brake levers via the built-in wireless chip. In the rim brake variant with a cable connection to the STIs, it is responsible for coupling the components. This is done via a function key, which is also used to set the rear derailleur. You can also use the button to check the battery level, change the switching mode from manual to synchro and semi-synchro shift and establish a Bluetooth connection to a bike computer or smartphone. An LED display will help you with this. The rear derailleur is connected to the battery via a cable, from which a cable also runs to the front derailleur and, if necessary, to the STIs. It has a charging connection through which you can easily recharge your circuit with the help of the appropriate charging cable. In racing and training use, the RD-R8150 impresses with its extremely high switching speed, which significantly exceeds that of its predecessor. Its flat shadow design reduces the risk of getting stuck and optimizes switching behavior.

Use: Road

Series: Ultegra Di2 R8150

Speed: 12-Speed

Mounting: Standard (Direct Mount Compatible)

Long Cage:

Maximum number of teeth on the largest pinion: 34 teeth

Minimum number of teeth, largest pinion: 28 teeth

Maximum number of teeth on the smallest pinion: 11 teeth

Minimum number of teeth, smallest pinion: 11 teeth

Maximum difference in front: 16 teeth

Total capacity: 39 teeth

Compatibility: Shimano Road 12-speed

Compatible chain: HG 12-speed

Number of E-Tube connections: 1

Weigh: Approx 262g

The Shimano Ultegra CS-R8100 12-Speed Cassette

The CS-R8100 is the first cassette from Shimano's Ultegra road bike series that has 12 sprockets. It is characterized by the Hyperglide + technology, which was initially tested in the MTB area and ensures seamless gear changes even under high loads. Even when kicking out of the saddle or sprinting, you can shift gear safely and immediately. The gradations were chosen so that there is a high level of gait efficiency in all situations and you accelerate optimally. The enlarged teeth of the pinion also contribute to this. A special plus point is the compatibility: CS-R8100 not only fits the new 12-speed freewheel body, but can also be used with conventional Shimano Road freewheel bodies. All gear rims are made of steel, with two light aluminum pinion carriers being used.

Use: Road

Series: Ultegra R8100

Speed: 12-Speed

Chainring: 11-30T (11-12-13-14-15-16-17-19-21-24-27-30T)

11-34T (11-12-13-14-15-17-19-21-24-27-30-34T)

Freewheel compatibility: Shimano Road, Shimano Road 12-speed

Recommended chain: HG 12-speed (e.g. CN-M8100)

Weight:291g(11-30T),345g(11-34T)

The Shimano XT CN-M8100 Quick Lock Chain

The Shimano XT CN-M8100 12 chain forms a central component of the XT M8100 and Ultegra R8100 group and has therefore been optimized from the ground up. Precise, fast and smooth gear changes in both directions, even under load, are ensured by high-precision contact surfaces on the chainring and cassette. In addition, the CN-M8100 chain has chromed inner links, which noticeably increase its durability.

Use: MTB, Road, E-Bike

Material: Steel

Speed: 12-Speed

Links: 116L

Recommended groups: XT M8100, Ultegra R8100

Weight:Approx 252g (114L)

Shimano Ultegra SM-BBR60 Bottom Bracket

The Shimano SM-BBR60 is a BSA type bottom bracket, which is recommended for Ultegra, 105, GRX, FC-CX70 and other Hollowtech II-compatible cranks with a 24 mm axle. It impresses with its improved smooth running and low weight, but is just as durable as its predecessor. Bottom bracket housings with BSA threads are 68 mm wide.

Use: Road, Cyclocross, City, Gravel

Installation type: BSA

Case width: 68 mm

Axle diameter: 24 mm (Hollowtech II)

Weight:Approx 77g

The Shimano SM-BB72-41B Press-in Bottom Bracket

Shimano SM-BB72-41B is a press-fit bottom bracket that is recommended for Ultegra and 105 11-speed as well as for Metrea City cranks. It saves weight thanks to its small ball bearings. This Hollowtech II bottom bracket also has an axle diameter of 24 mm, which has proven to be optimal in terms of rigidity and rotational efficiency.

Use: Road, City

Installation type: Pressfit BB86

Case diameter: 41 mm

Case width: 86.5 mm

Axle diameter: 24 mm (Hollowtech II)

Weight:Approx 69g

The Shimano Di2 BT-DN300 Battery

The BT-DN300 is a lithium-ion battery that Shimano developed for the Dura-Ace and Ultegra Di2 2x12-speed road groupsets. Like its predecessor, it is installed internally in the frame, typically in the seat post. It has three connections and supplies all electronic components with power via the thin EW-SD300 power cable (not included): the rear derailleur, the front derailleur and, with a fully wired set-up, the two shift / brake levers. Unlike earlier models, the BT-DN300 does not have its own charging socket, but is charged via the switching mechanism. In addition, it is not Bluetooth-enabled. The nominal voltage of the battery is 7.4 volts, the nominal capacity 500 mAh. A full charge takes up to 1.5 hours if the charging cable is connected to a power supply unit with a USB connection, or up to 3 hours if it is connected to the USB port of a computer. Once charged, you can drive your circuit for approx. 1000 km. Blind plugs and small parts required for installation are included.

Type: lithium-ion battery

Voltage: 7.4V

Energy amount: 3.7 Wh

Capacity: 500 mAh

Charging time: 1.5 - 3 hours

Weight:Approx 52g

Compatibility:

Switching group: Dura-Ace Di2 R9250, Ultegra Di2 R8150

Power cable: EW-SD300-I (3 x connector)

Charger: RD-R9250, RD-R8150 (rear derailleurs)

Charging cable: EW-EC300

Features:

Internal assembly in the seat post

Waterproof design

Firmware updates via E-Tube Project

Charging time 1.5 h via USB mains adapter, 3 h via computer USB

Running time approx. 1000 km

Operating temperature -10 ° C to 50 ° C

Charging temperature 0 ° C to 45 ° C

The Shimano Di2 EW-EC300 USB Charging Cable

With the EW-EC300 charging cable, you can recharge the Shimano Di2 BT-DN300 battery in your electronic 2x12-speed gears via the rear derailleur. It is also used to charge the Dura-Ace FC-R9200-P and Ultegra FC-R8100-P power meter cranks. It is 1.5 meters long and has a plug on one side that is plugged into the charging connection on the switchgear or the charging socket on the power meter's control unit. On the other side is a type A USB connector. You can use this connector with a suitable power adapter device or in a computer port; depending on the charging process takes shorter or longer.

Length: 1.5 m

Connector: USB type A

Compatibility:

Battery / rear derailleur: BT-DN300 over RD-R9250, RD-R8150

Power meter: FC-R9200-P, FC-R8100-P

Features:

Only one cable to charge the circuit and the power meter

Charging the battery via the rear derailleur

The Shimano Di2 EW-SD300-I Power Cable

EW-SD300-I is a power cable from Shimano for internal routing in the frame, which was developed with regard to the Dura-Ace and Ultegra Di2 12-speed racing bike gears and the MU-UR510 e-bike motor unit. It is 0.4 mm thinner than the previous EW-SD50 cable, which saves weight and has optical advantages. There is a plug on both sides which, with a diameter of 3.45 mm, is also much slimmer than before. Electrical signals are exchanged at lightning speed between the rear derailleur, battery, front derailleur and, if necessary, the STIs. Di2 shift levers for time trials and triathlons that require the old cable can be connected to the EW-SD300-I using a conversion adapter.

Cable length: 1x800mm and 1x1200mm

Cable laying: internal

Number of plugs: 2

Cable diameter: 2.4 mm

Connector diameter: 3.45 mm

Features:

Cable 0.4 mm thinner than EW-SD50

Connector 1.65 mm thinner than EW-SD50

With cable holders that prevent it from moving in the frame