The Mistral Carbon Pro 105 Di2 2027Berria is a high-end electric road bike that combines an HM2X carbon frame, a 12-speedShimano 105 Di2 electronic drivetrain and the Bosch Performance Line SX Smart System motor. Designed for sporty rides, undulating routes and long distances, it offers natural assistance whilst retaining handling characteristics similar to those of a traditional road bike.

This configuration features tubeless-ready aluminium Vision Team 30 wheels, with an internal width of 23 mm and a rim height of 30 mm. They are a versatile and robust choice, particularly well-suited to an e-bike intended for regular use.

The Mistral also stands out thanks to its frame, which incorporates the SOFTEX system with 28 mm of travel, Active Stay technology and a carbon fork featuring rake adjustment from 45 to 51 mm. It accommodates tyres up to 700 x 50C, allowing it to move beyond strictly road use and venture onto tracks and smooth trails.

Key features of the Berria Mistral Carbon Pro 105 Di2

• Brand: Berria
• Model: Mistral Carbon Pro 105 Di2
• Model year: 2027
• Type: electric road bike
• Frame: HM2X carbon
• Technologies: MACH-R Nanotech, Triple Monocoque, Active Stay, ICS2
• SOFTEX system: 28 mm travel
• Motor: Bosch Performance Line SX Smart System
• Motor torque: 55 Nm
• Claimed maximum power: 600 W
• Battery: Bosch CompactTube 400 Wh
• Drivetrain: Shimano 105 Di2, 12-speed
• Cassette: Shimano 11–34 teeth
• Brakes: Shimano 105 hydraulic disc brakes
• Wheels: Vision Team 30 aluminium
• Handlebar: Avanforce Alloy 6061
• Internal rim width: 23 mm
• Rim height: 30 mm
• Tyres: Vittoria Zaffiro 32 mm, rigid bead
• Sizes: XS, S, M, L and XL

Bosch Performance Line SX motor and 400 Wh battery

The Bosch Performance Line SX Smart System is particularly well-suited to the Mistral’s design philosophy. With 55 Nm of torque and up to 600 W, it provides dynamic assistance whilst maintaining a sporty pedalling feel.

The 400 WhBosch CompactTube battery is integrated into the frame. The system also includes the Bosch System Controller and is compatible with the eBike Flow ecosystem, allowing you to manage the electric system’s functions.

The SX motor is therefore particularly appealing to cyclists seeking assistance on climbs and over long distances, without wanting to switch to a heavy trekking-style e-bike.

Shimano 105 Di2 12-speed drivetrain

The Berria Mistral Carbon Pro 105 Di2 is fitted with the 105 Di2 12-speedShimano , featuring electronic front and rear derailleurs.

The 11–34-tooth cassette offers a gear range well suited to versatile road cycling. It allows for sufficiently high gears on the flat whilst providing a suitable range for climbs.

The 105 Di2 strikes an excellent balance between precision, reliability and ease of use. The electronic gear-shifting also provides real comfort on long rides.

Vision Team 30 aluminium wheels

The Pro 105 Di2 2027 Mistral Carbon is fitted with Vision Team 30 aluminium wheels.

Their 30 mm profile, 23 mm internal width, compatibility Tubeless Ready and Centre Lock mounting make them a versatile set of wheels.

Why are the Team 30s worth considering?

Aluminium offers several advantages for an e-bike: the wheels are designed for regular use and provide a good balance between strength, reliability and replacement cost.

The 30 mm rim width remains relatively versatile. It’s equally suited to fast road rides and rougher terrain. For a cyclist prioritising performance and weight reduction, however, a lighter pair of carbon wheels could be an attractive upgrade.

HM2X carbon frame and SOFTEX system

The Mistral’s frame is made from HM2X carbon, using Toray T700 and T800 fibres depending on the frame section. Berria combines this material with its MACH-R Nanotech resin, developed to withstand the additional stresses associated with the integration of the motor and battery.

The SOFTEX system, with its 28 mm of travel, provides additional ability to absorb bumps. Active Stay technology also promotes vertical flex in the seat stays whilst maintaining the stiffness required for pedalling.

The Mistral EVO fork also features a flip-chip that allows the rake to be adjusted from 45 to 51 mm. Berria presents this adjustment as a way of modifying the bike’s behaviour depending on the terrain and intended use.

True versatility on road and gravel

With a claimed tyre clearance of up to 700 x 50C, the Mistral isn’t limited to tarmac. This tyre width makes it suitable for fast-rolling trails, forest tracks and light to moderate gravel riding.

Its full ICS2 cable integration also enhances the bike’s clean lines and protects the cables from external damage.