Berria gravel bike, Naii X Pro, GRX800 Vision, Team 30 Dark Grey 2027

The Berria Naii X Pro GRX800 Vision Team 30 Dark Grey 2027 is a carbon gravel bike designed for cyclists looking for an excellent balance between performance, versatility and comfort on mixed-terrain routes. Its frame NAII X in HM2X carbon, its transmission Shimano GRX800 12-speed and its wheels Vision Team 30 are particularly well suited to competitive gravel cycling, long rides and routes that alternate between road and track.

With its colour scheme Dark Grey, the Naii X Pro features a sleek, modern design. Its design incorporates a range of technologies Berria designed to optimise the bike’s performance, particularly its construction Triple Monocoque, the system Active Stay and the cables are routed entirely internally ICS2.

HM2X carbon frame: lightness and stiffness

The setting NAII X Carbon is made of carbon HM2X featuring a triple monocoque construction. Berria uses Toray T700 and T800 fibres strategically positioned within the frame to strike a balance between stiffness and comfort.

The frame features BGC gravel geometry and has a bottom bracket shell T47, 12 mm thru-axles and a compatible derailleur hanger UDH. Cable routing is fully integrated thanks to the system ICS2.

This design enables the Naii X to Pro to maintain a clean, uncluttered look whilst protecting cables and hoses from the dirt and debris associated with gravel cycling.

Active Stay technology

Technology Active Stay is one of the distinctive features of the Berria Naii X. It is designed to increase the vertical flex of the stays whilst maintaining the rigidity required for pedalling.

The aim is to provide greater stability when the bike is riding over uneven surfaces, whilst maintaining a dynamic response when the cyclist accelerates or picks up speed.

Transmission Shimano GRX800 12-speed

The Shimano GRX800 12-speed equip this Naii X assembly Pro. Specifically designed for gravel riding, the GRX groupset combines ergonomics, precise gear changes and the ability to handle a variety of terrains.

The crankset Shimano GRX FC-RX820-12 is fitted with trays 48/31 teeth, whilst the cassette Shimano CS-HG710-12 proposes a tiered system of 11–36 teeth. This combination offers a sufficiently wide range of gear ratios to cope with both fast sections and steeper climbs.

Braking is provided by hydraulic disc brakes Shimano GRX BR-RX820, providing smooth braking and good control of the bike on gravel routes.

Wheels Vision Team 30

The Berria Naii X Pro The GRX800 is fitted with wheels Vision Team 30. Their aluminium rims have a height of 30 mm and an internal width of 23 mm.

The wheels are Tubeless Ready and feature a Centre Lock system. This set-up is a versatile choice for a bike designed to switch between tarmac, smooth tracks and rougher trails.

The 23 mm internal width also allows for the use of a wide range of gravel tyres, depending on the terrain and the desired handling characteristics.

True gravel versatility

The frame and fork of the Naii X are designed to accommodate tyres up to 700 x 50C. This generous ground clearance makes the bike suitable for a variety of uses.

With narrower, faster tyres, the bike can prioritise performance on roads and fast-rolling tracks. With wider tyres, it offers greater comfort, better traction and improved handling on rough terrain.

The fork is made entirely of carbon and features a thru-axle 12 x 100 mm. It accommodates discs up to 160 mm.

Cockpit and finish

The bike is fitted with handlebars Avanforce 3 Gravel made from 6061 aluminium, with a range of widths available depending on the frame size. The seatpost Avanforce Tibia Softex is made from UD carbon fibre, with a diameter of 27.2 mm and zero offset.

The saddle Fizik Vento Argo X5, fitted with 7 x 7 mm steel rails, measures 265 mm in length and 140 mm in width.

The bike is designed to offer a riding position suited to gravel riding and features a seamless integration of the various components.

The key features of the Berria Naii X Pro GRX800

• Frame NAII X Full Carbon HM2X

• Construction Triple Monocoque

• Technology Active Stay

• Transmission Shimano GRX800 12-speed

• Crankset Shimano GRX 48/31 teeth

• Cassette Shimano 11–36 teeth

• Hydraulic disc brakes Shimano GRX

• Wheels Vision Team 30 aluminium

• 30 mm high rims

• Internal rim width of 23 mm

• Wheels Tubeless Ready

• Tyres up to 700 x 50C

• Full-carbon fork

• Through-axles: 12 x 100 mm at the front and 12 x 142 mm at the rear

• Fully internal cable routing ICS2

• Bottom bracket shell T47

• Derailleur hanger UDH

• Saddle Fizik Vento Argo X5

• Colours Dark Grey

• Vintage 2027

What is it used for ?

The Berria Naii X Pro The GRX800 can be used, for example, for:

• Competitive gravel cycling

• Long rides on roads and tracks

• Mixed road/gravel routes

• The white tracks and paths

• Hilly gravel routes

• Training runs

• Gravel rides

• Lightweight bikepacking, provided that the fitment and load-bearing capabilities are taken into account

Its compatibility with tyres up to 700 x 50C means its handling can be adapted to suit the terrain and the type of riding.

Choosing the right size

Berria offers the NAII X in the following sizes XXS, XS, S, M, L and XL, with approximate ranges from under 1.50 m for XXS to over 1.90 m for XL.

The geometry changes naturally with the size of the frame. In particular, the reach ranges from 372 mm in XXS to 422 mm in XL, whilst the stack ranges from 524 to 606 mm. To make the right choice, it is best to take into account the rider’s height, their body measurements and the riding position they are aiming for.