Remote Aero Bar / TT Shifter

Front Derailleur

Short Cage Rear Derailleur

Dual Control Lever

Internal Battery

Internal Battery (deprecated)

External Battery

Wireless Unit / D-Fly (ANT, deprecated)

Junction and Wire Harness (deprecated)

Remote Sprint Shifter

External Battery Mount (deprecated)

External Battery Mount

Internal Junction B

External Junction B

Below-the-stem Junction A

Inline D-Fly / Wireless Unit

Seatstay D-Fly Wireless Unit

Inline 2-port Junction

Y-splitter Cable

Frame/Handlebar Junction

Cable Plug Tool for Di2

Di2 Electric Wire Cover

Electric Wire / E-Tube cable

Handlebar Climbing Shifter

External mount for Internal battery

External Battery Charger

Internal Battery Charger / PC linkage device

PC Linkage Device

EW-SD50 x EW-SD300 Electric Wire Adapter

Seatpost dropper lever

PRO Internal Routing Tool

Shimano Disc Brake Hose Cut and Set Tool

Park Tool Oversized Adjustable Saw Guide

Cable plug tool for Di2

Di2 Electric Wire Cover for EW-SD300

PRO Fork Steerer Di2 battery holder

Internal Battery Charging Cable

PRO Vibe EVO handlebar/stem

Seatpost Battery Holder

Front Derailleur Clamp Band Adapter (road)

Hydraulic Disc Brake Dual Control Lever

Chainstay Speed Sensor

Disc Brake Speed Sensor

Satellite System On/Off Switch

EP8 Drive Unit

Left hand switch unit

Wireless Cycle Computer

System Information Display - Junction A

Basic Display - Junction A

Motor Unit for Internal Geared Hub

2x12 Crankset

Satellite Drops Sprint Shifter (12 speed)

Satellite Tops Shifter (12 speed)

Clip-on Aero Bar Satellite  Shifter (12 speed)

Shadow Rear Derailleur (12 speed)

Disc Brake Dual Control Lever (Wireless)

Rim Brake Dual Control Lever (Wired)

TT / Bar-end shifting switches

Remote Satellite Sprint Shifter

Power Meter Crankset

Short Cage Shadow Rear Derailleur

TT / Triathlon Disc Brake Dual Control Lever

TT / Triathlon Dual Control Lever

TT / Aerobar 2-button Shifting Switches

Medium Cage Rear Derailleur

Time Trial/Triathlon Dual Control Lever

Medium Cage Shadow Rear Derailleur

Shadow RD+ RX Rear Derailleur

2x11 Gravel Crankset 

1x11 Gravel Crankset

Rear Derailleur (2x)

Rear Derailleur (1x)

XTR Crankset (1x, 2x, 3x)

Firebolt Shifter

Mount Adapter for Front Derailleur High Clamp

Mount Adapter for Front Derailleur Low Clamp

Mount Adapter for Front Derailleur Type D (direct mount)

Mount Adapter for Front Derailleur Type E (low direct mount)

Front Derailleur (3x)

Front Derailleur (2x)

Shadow RD+ Medium Cage Rear Derailleur

Shadow RD+ Long Cage Rear Derailleur

XT Crankset (1x, 2x)

Front derailleur (2x10)

Short Cage Rear Deraileur (10 speed)

TT / Bar-end satellite shifting switches

Remote Climbing Shifter

Rear Derailleur (10 speed)

Dual Control Lever 

The previous generation DURA-ACE components is still a very good choice for a modern bike – especially when paired with a set of new shifters and the bar-end junction box.

DURA-ACE

All of the Di2 hardware is completely cross-series compatible, meaning that you can mix Ultegra with DURA-ACE and even mtb components if you want to. The hardware below is used on both the Ultegra and DURA-ACE groupsets - and MTB and GRX as well.

Non-series components

Announced August 31 2020, the EP8 groupset is Shimano's new flagship system. It is quieter and more efficient than the previous E-MTB groups. It also features enhanced range and a higher maximum torque. It uses the next-generation SD300 E-Tube wire interface.

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EP8 E-MTB

In 2013 Shimano released the first version of the Alfine S705 series.  Then in 2017 / 2018 they announced the revised Alfine series, S7050.

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Alfine

Shimano's first ever 12-speed Di2 groupset, DURA-ACE R9200 was announced September 1st, 2021. It features wireless shifting, improved disc brakes, and of course, 12-speed cassettes.

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When Shimano announced the 12-speed DURA-ACE R9200 groupset, they also announced Ultegra R8100. Just like its DURA-ACE cousin, this groupset is all about 12-speed, wireless shifting. Also, for the very first time, Shimano have produced an Ultegra Power Meter.

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Ultegra

The same instant and flawless shifting as its Ultegra sibling, but at a much lower price point. 12-speed wireless Di2 for everyone.

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Released in 2016, the Shimano R9150 (rim brake) and R9170 are described by Shimano as system engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That’s how it achieves supremacy.

The 6870 Di2 groupset was released in 2013 and is “pro-proven” as it is a direct trickle down from Shimano’s DURA-ACE group. It stands for state-of-the-art technology, proven in pro races, the technology used in ULTEGRA 6800 series with 11-speed, advanced designed brakes, latest chain treatment and more.

Introduced early in 2019, GRX is Shimano’s first Gravel group set. It delivers good performance both on the road and off the beaten path. GRX and Road share the same 'category as far as Di2 is concerned, meaning you can mix GRX derailleurs with Road Di2 derailleurs, but not with MTB derailleurs.

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Ultegra 6770 was Shimano's first Ultegra Di2 groupset. It was launched in 2011 and supports 2x10 speed gearing. 

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In 2009 Shimano released the DURA-ACE 7970 series - the company's first Di2 groupset. It uses a five-wire protocol and plug and therefore none of these components are compatible with any of the other Di2 series - you simply cannot plug them in.

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Di2 E-Bike Components and Accessories

Non-series components

ST-R785

SW-R610

SW-R600

PRO-VIBE-EVO

BT-DN110

SM-BTR2

SM-BTR1

EW-JC130

SM-EWC2

EW-SD50

EW-SD300

EW-AD305

EW-CC300

SM-EWW01

EW-WU111

EW-WU101

SM-EW67-A-E

SM-EW90-A, SM-EW90-B

EW-RS910

SM-JC41

SM-JC40

EW-JC200

EW-JC302

EW-JC304

SL-MT800-IL

SM-PCE1

SM-PCE02

TL-EW02

PRTL0080

TL-BH62

SG-7.2

TL-EW300

SM-BMR1 / SM-BMR2

BM-DN100-S, BM-DN100-L, BM-DN-100-I

SM-BTC1

PRHS0110

BT-HLDR

SM-AD91-MS, SM-AD91-L

SM-BCR1

SM-BCR2

EW-EC300

Alfine S7050 / S705 (2013)

ST-R785 (E-bike)

MU-S705

SC-MT800 (E-bike)

SC-S705