New Shimano Di2 Groupsets for 2026: Finally on Par with Sram

Electronic shifting has long been standard on modern ebikes. Sure, it’s not on every model the case. However, just like automatic transmission in cars, this development is here to stay and will only be replaced by something more advanced. Shimano launched its first electronic shifting groupsets, with the introduction of Free Shift and Auto Shift in summer 2022. This segment, which at the time included the Cues-Di2 and XT-Di2 groupsets, will grow in the 2026 season. With e-mountain bikes in mind, Shimano is unveiling completely new Di2 components for XTR, Deore XT and Deore.

1. Approach of the new Di2 components for the 2026 season
2. New Shimano Di2 rear derailleurs with ebike-specific versions
3. New Shimano Di2 shifters
4. New Shimano Di2 cassettes for XTR and Deore XT
5. New Shimano Di2 cranks for XTR and Deore XT

1. Approach of the new Di2 components for the 2026 season

Shimano presented a gear system that replaced the mechanical shift cable with electronics back in 2009. However, the company was unable to fully exploit this development lead in the years that followed. Its main competitor, Sram, has long been the market leader in this field with completely wireless groupsets for both ebikes and bikes without electric assistance.

Now Shimano is also launching a wireless version of its Di2 platform. The system presented is said to shift faster and more precisely than anything the manufacturer has been able to offer to date. In addition, the components are more durable than before and can be combined with each other in more ways.

Trio of XTR, Deore XT and Deore

With Cues and Deore XT, there are already two groupsets that have been and continue to be used on urban ebikes, trekking ebikes and e-mountain bikes. They are slightly more robust and use Linkglide technology, which is specially designed for the higher loads on ebikes. This continues to apply to the Cues groupset. Shimano Deore XT, on the other hand, is changing. The groupset forms the golden mean of the new Di2 trio, which also includes Shimano XTR and Shimano Deore. As expected, XTR is virtually the gold standard, while Deore is designed to be simpler and more affordable. The three new groupsets can be distinguished from each other by their colour scheme, among other things. The more silver the look, the higher the quality of the group. This is particularly evident with the rear derailleurs and shift levers. Of course, the names are still printed on the components. 😉

2. New Shimano Di2 rear derailleurs with ebike-specific versions

Shimano XTR Di2, Shimano Deore XT Di2 and Shimano Deore Di2 now have new electronic rear derailleurs that are completely wireless and draw the energy for shifting from an integrated battery. This is something you have been familiar with for years from Sram with its electric AXS groupsets. For Shimano, these wireless versions are completely new.

In addition, all three groupsets also include derailleurs with a cable. These versions are specifically designed for use on ebikes. The cable supplies power to the derailleur, which in this case is connected directly to the ebike battery. Manufacturers will probably equip most of their ebikes with these derailleurs. The components are suitable for cassettes with twelve sprockets. They feature Shimano’s Hyperglide+ for reliable shifting under high loads. If the derailleurs are designed for cassettes with eleven sprockets, they are the Linkglide versions.

In both cases, Shimano uses a long cage. The wireless derailleurs feature long and medium cages. Furthermore, only combinations with 12-speed cassettes are available. The derailleur cage on a Shimano XTR Di2 rear derailleur is made of carbon. The derailleur cages for Shimano Deore XT Di2 and Shimano Deore Di2 are made of aluminium and steel respectively.

The wiser rear derailleur knows when to let go

All three product lines benefit equally from the technical solutions that Shimano has incorporated into this new generation. In our opinion, the special mobility of the rear derailleurs deserves an extra mention. It ensures that not every hard impact of the components with another object results in them having to be replaced. The rear derailleur can give way within astonishingly large limits, thus taking the destructive force out of the collision and allowing you to continue riding. However, the emphasis is on ‘can’. Not every impact or fall will end this way.

To enable the rear derailleur to move out of the way as described, Shimano has retained a conventional derailleur hanger. Consequently, there is no mounting directly on the frame dropout, as is the case with Sram Transmission derailleurs. According to Shimano, the derailleur hanger increases the travel that the derailleur can take and facilitates its rotation. It also absorbs a large part of the impact forces that would otherwise be transferred directly to the frame. Overall, five special solutions characterise the exceptional quality of the new Di2 derailleurs:

1. Automatic Impact Recovery: the rear derailleur absorbs the energy of an impact, decouples briefly and then moves back to its original position
2. Shimano Shadow ES technology: low, wedge-shaped rear derailleur reduces the risk of impact and allows objects to slide past more easily
3. Wide and stable linkage and solid pulleys allow less dirt to enter and ensure long durability
4. New chain stabilisation: dual spring design increases chain tension, improves chain wrap on the chainring teeth, sprockets and derailleur pulleys
5. Protected battery thanks to positioning inside the derailleur body

Shimano XTR Di2 rear derailleurs

Shimano RD-M9260 – rear derailleur for e-MTBs

• Shimano RD-M9260-12 – 12-speed, Hyperglide+
• Shimano RD-M9260-11L – 11-speed, Linkglide

Shimano RD-M9250 – wireless rear derailleur

• Shimano RD-M9250-SGS – long cage for use with 10-51 teeth cassette
• Shimano RD-M9250-GS – medium cage for use with 9-45 teeth cassette

Shimano Deore XT Di2 rear derailleurs

Shimano RD-M8260 – rear derailleur for e-MTB

• Shimano RD-M826012 – 12-speed, Hyperglide+
• Shimano RD-M826011L – 11-speed, Linkglide

Shimano RD-M8250 – wireless rear derailleur

• Shimano RD-M8250-SGS – long cage for 10-51 teeth cassette
• Shimano RD-M8250-GS – Medium cage for 9-45 teeth cassette

Shimano Deore Di2 rear derailleurs

Shimano RD-M6260 – rear derailleur for e-MTB

• Shimano RD-M6260-12 – 12-speed, Hyperglide+
• Shimano RD-M6260-11L – 11-speed, Linkglide

Shimano RD-M6250 – wireless rear derailleur

• RD-M6250-SGS – long cage for 10-51 teeth cassette

3. New Shimano Di2 shifters

When developing the new Di2 shifters, Shimano drew on its renowned mechanical shift levers. The main goals were to provide clear tactile feedback for every shift and to create an ergonomic design that allows you to keep your hands in the familiar position on the handlebars at all times while shifting. We will only be able to seriously assess whether Shimano has achieved the first goal after our own test rides.

With regard to the second goal, numerous pictures and videos suggest that Shimano has worked very conscientiously here. The shape and size of the shift paddles alone appear to have been significantly optimised. On the shifters for the XTR groupset, you can adjust the position of each of the two paddles on several axes. There are also handy adjustment options for the switch itself on the handlebars.

Fast, reliable and customisable shifting

Initial tests by various bike magazines have shown that the Rapid ES technology’s shifting protocol works particularly well. Shifting is as fast and precise as you would expect from a manufacturer with Shimano’s wealth of experience. You can choose between different modes when shifting. From classic shifting for one gear with a single click, to double shifting by pushing the shift paddle twice, to multi-shift by holding down the paddle to skip three gears at once, for example, there are many options available. You can set your preferences in Shimano’s E-Tube Project Cyclist app. There you will also find additional functions that can be assigned to the third button on the switch.

Fortunately, the shifters for Shimano XTR Di2, Shimano Deore XT Di2 and Shimano Deore Di2 are very similar. Basically, only the adjustment options for the shift paddles provide a certain degree of differentiation – apart from the appearance, of course. Unfortunately, the shift paddles on the Deore shifter are of slightly lower quality than the other two versions.

Shimano XTR Di2 shifters

Shimano SW-M9250R – Di2 shifters

• multiple shifting (2 stages/hold)
• mode switch (double/single)
• 4-way paddle adjust
• shift paddle with wide rubber pad
• programmable third button, for example to control Free Shift and Auto Shift
• available in I-SPEC EV and clamp band versions

Shimano Deore XT Di2 shifters

Shimano SW-M8250-R / IR – Di2 shifter

• multiple shifting (2 steps/hold)
• 3-way paddle adjust
• shift paddle with wide rubber grip
• programmable third button, for example to control Free Shift and Auto Shift
• available in I-SPEC EV and band versions

Shimano Deore Di2 shifter

Shimano SW-M6250R – Di2 shifter

• multiple shifting (hold) and single click
• programmable third button, for example to control Free Shift and Auto Shift
• available in I-SPEC EV and band versions

4. New Shimano Di2 cassettes for XTR and Deore XT

Derailleurs and shifters have been developed to work in perfect harmony with all other components in the groupset. Shimano is therefore also launching new cassettes to match. Of the four different versions, two belong to the XTR groupset and two to the Deore XT groupset. With XTR cassettes, the manufacturer has aimed to offer maximum durability at the lowest possible weight. Some sprockets are therefore made of titanium, others of aluminium and others of steel. The XT cassettes represent a slightly greater compromise between the rather conflicting requirements of weight and durability. As a result, only a maximum of two sprockets are made of aluminium. The others are made of steel.

This results in a total of twelve sprockets. The number of gears is therefore identical. What differs slightly is the range. For the cassette with twelve to 51 teeth per sprocket, the value is 510 percent. For the cassette with nine to 45 teeth per sprocket, it is still 500 percent.

Shimano XTR Di2 cassettes

Shimano CS-M9200-12

• 12-speed
• Hyperglide+
• Mirco Spline
• sprockets: 10-12-14-16-18-21-24-28-33-39-45-51 T
• range: 510 %

Shimano CS-M9200-12

• 12-speed
• Hyperglide+
• Mirco Spline
• sprockets: 9-11-13-15-17-19-21-24-28-33-39-45 T
• range: 500 %

Shimano Deore XT Di2 cassettes

Shimano CS-M8200-12

• 12-speed
• Hyperglide+
• Mirco Spline
• sprockets: 10-12-14-16-18-21-24-28-33-39-45-51 T
• range: 510 %

Shimano CS-M8200-12

• 12-speed
• Hyperglide+
• Mirco Spline
• sprockets: 9-11-13-15-17-19-21-24-28-33-39-45 T
• range: 500 %

5. New Shimano Di2 cranks for XTR and Deore XT

What applies to the cassettes also applies to the cranks of the new Shimano Di2 groupsets. At least as far as optimal interaction is concerned. The scope of the new features is somewhat smaller here. Of the three new cranks, two belong to the XTR groupset and one to the Deore XT groupset.

The new Shimano XTR M9200 crankset is available in two different versions. The more robust FC-M9220 features an axle that is around 20 percent thicker. Shimano therefore recommends it for enduro use. The lighter FC-M9200 is intended by the manufacturer for cross-country e-mountain bikes as well as trekking and touring ebikes. Different Q-factors emphasise the difference.

The Shimano Deore XT M8200 crankset is a single piece. Based on a standard steel axle with a diameter of 24 millimetres, it can be used for any purpose. All three cranks feature Shimano’s proven Hollowtech II standard.

Shimano XTR Di2 cranks

Shimano FC-M9220

• application: trail and enduro
• crank arm lengths: 160 mm, 165 mm, 170 mm, 175 mm
• chainring sizes: 28T to 34T
• Q-factor: 176 mm
• chainline: 55 mm

Shimano FC-M9200

• application: cross-country and touring
• crank arm lengths: 165 mm, 170 mm, 175 mm
• chainring sizes: 30T to 38T
• Q-factor: 168 mm
• chainline: 55 mm

Shimano Deore XT Di2 crank

Shimano FC-M8200

• application: trail, enduro, cross-country
• crank arm lengths: 160 mm, 165 mm, 170 mm, 175 mm
• chainring sizes: 28T to 36T
• Q-factor: 176 mm
• chainline: 55 mm

Pictures: Shimano Europe B.V.