BMC Kaius 01 lightweight carbon VAR0 2026-2027

BMC KAS01 FRS VAR0 VAR0 carbon gravel frame 2026-2027

The BMC KAS01 FRS VAR0 VAR0 2026-2027 is a carbon gravel frameset designed as a high-end base for building a fast, lightweight gravel racing bike perfectly suited to the modern demands of the discipline. Designed for cyclists who want to choose every component of their build, it uses the Kaius 01 Gen 2 platform in its purest form.

Developed around Premium 01 carbon, Aerocore Design and ICS Technology Stealth Cable Routing integration, this frameset offers a measured aerodynamic gain of 7% at 40 km/h, improved high-speed stability and dynamic behavior perfectly suited to fast gravel races.

With its clearance for tires up to 52mm, its Full Mount / UDH interface, its T47 Road Wide bottom bracket and its raw carbon finish with minimal varnish and removable decals, the Kaius 01 VAR0 provides an ideal base for creating a custom, high-performance and scalable gravel build.

Frame kit

Frame

Kaius 01 Gen 2, Premium 01 carbon with Aerocore Design, internal cable routing ICS Technology Stealth Cable Routing, Full Mount - UDH, TCC Race Compliance Level, Flat Mount Disc brake, 12 x 142 mm thru axle.

Fork

Kaius 01 Gen 2, Premium 01 carbon, ICS Technology Stealth Cable Routing, TCC Race Compliance Level, Stealth Dropout Design, Flat Mount Disc brake, 12 x 100 mm thru axle.

VAR0 finish

Raw carbon finish with minimal clear coat and removable decals, ready for custom painting or direct fitting with a clean carbon look.

Gravel racing geometry

The geometry of the Kaius 01 Gen 2 is designed to ride fast on all surfaces, with a more precise front end, better high-speed stability and compatibility with wider tires for modern gravel riding.

Flexibility and efficiency

Premium 01 carbon and TCC Race Compliance Level allow for a precise balance between stiffness, power transfer and comfort when the terrain becomes more demanding.

Integration

Integrated Cockpit System

The ICS system allows for integrated and discreet cable routing, resulting in a cleaner, more aerodynamic and more modern cockpit.

Cable routing

ICS Technology Stealth Cable Routing.

Cockpit compatibility

Compatible with the supplied high and low ICS cones and the included spacers.

Saddlery

Seat post

Teammachine SLR 01 Gen 5, Premium 01 carbon aerodynamic seatpost, 0 mm offset in sizes 47 to 51 and 10 mm offset in sizes 54 to 61.

Transmission

rear derailleur interface

Full Mount - UDH.

Group compatibility

The interface is designed to offer great freedom of assembly, with SRAM UDH and Shimano Direct Mount compatibility thanks to the supplied tabs.

Bottom bracket

T47 85.5 mm Road Wide.

Braking

Brake mount

Flat Mount Disc.

Disk compatibility

Rotor compatibility: 160 mm front and 160 mm rear.

Accessories included

Contents included in the box

• Aerocore bottle cages
• SRAM UDH derailleur hanger
• Shimano Direct Mount derailleur hanger
• ICS upper and lower cones
• 3 spacers of 10 mm
• 2 spacers of 3 mm

Additional information

Tire clearance

Maximum clearance for tires up to 52 mm measured.

Weight

1855 g in size 54, with all accessories.

ASTM Classification

Level 2.

System weight limit

120 kg.

Main features

• BMC Kaius 01 Gen 2 competition gravel frameset
• Premium Carbon 01 with Aerocore Design
• Measured aerodynamic gain of 7% at 40 km/h
• Internal cable routing by ICS Technology Stealth Cable Routing
• Full Mount Interface - UDH
• TCC Race Compliance Level
• Flat Mount Disc Brakes
• 12 x 100 mm thru-axles at the front and 12 x 142 mm at the rear
• T47 85.5 mm Road Wide Bottom Bracket
• Aerodynamic carbon seatpost included
• Tire clearance up to 52 mm measured
• Raw carbon finish with minimal varnish and removable decals

Why choose the BMC Kaius 01 VAR0 frameset?

The BMC Kaius 01 VAR0 is designed for cyclists who want to build a custom competition gravel bike around BMC 's fastest platform. Lightweight, aerodynamic, stable at high speeds, and compatible with modern standards, it provides an ideal base for a premium gravel build focused on pure performance and complete customization.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.