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The ultimate blank canvas for building your fastest gravel race bike.
The ultimate blank canvas for building your fastest gravel race bike.
The price has not been reduced in the last 30 days. The recommended price is set by the manufacturer and is shown for reference only.
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Frame geometry on the attached sheet.
When generation 1 of Kaius launched, the gravel world stood up and took notice. Made with racing as its sole purpose, it defined what gravel speed looked like. Gen 2 raises the bar again.
With a 7% aerodynamic gain at 40 km/h, improved stability at speed, and the unmistakable ride feel of our 01 Premium Carbon, the Kaius 01 frameset is engineered for riders who want to build without compromise. 51mm tire clearance, refined compliance, and race-ready geometry give you a platform that stays fast when the course turns rough and the pace stays high.
Supplied with frame, fork, and seatpost, the VAR0 frameset features a future-proof Full Mount / UDH interface, giving you total freedom when it comes to drivetrain choice. Finished in raw carbon with a light lacquer and removable decals, it’s ready for custom paint or left as-is for a stripped-back race aesthetic.
SPECIFICATIONS
Frameset
Frame: Kaius 01 Gen 2 | 01 Premium Carbon with Aerocore Design | ICS Technology Stealth Cable Routing | Full Mount - UDH | TCC Race Compliance Level | Flat Mount Disc | 12 x 142mm Thru-Axle
Fork: Kaius 01 Gen 2 | 01 Premium Carbon | ICS Technology, Stealth Cable Routing | TCC Race Compliance Level | Stealth Dropout Design | Flat Mount Disc | 12 x 100mm Thru-Axle
Rear Derailleur: Full Mount - UDH
Bottom Bracket: T47 85.5mm Road Wide
Seat
Seatpost: Teammachine SLR 01 Gen 5 | 01 Premium Carbon Aero Shaped Seatpost | 0mm Offset Size 47-51 and 10mm Offset Size 54-61
Brakes
Rotor Size (F/R): Rotor compatibility: 160mm front | 160mm rear
Accessories
In the Box: Aerocore Bottle Cages | SRAM UDH derailleur hanger | SHIMANO Direct Mount derailleur hanger | High and low ICS top cones, 3x10mm spacers , 2x3mm spacers
Additional Information
Tire Clearance: 52mm measured tire
Weight without Pedals: 1855g | Size 54 as pictured with all accessories
ASTM Classification: Level 2
System Weight Limit: 120kg
General Product Safety Regulation (GPSR):
Safety Instructions GPSR (EU)
Responsible person according to GPSR (EU)
Data sheet
No customer reviews for the moment.
Rider building a race gravel bike
It is designed for gravel racing, with a fast, rigid set-up. The 01 Premium Carbon and the 1855 g weight point to performance-focused use.
Anyone wanting a custom-build platform
The frame kit, with Solo telaio transmission group, is suitable for a custom build. The Full Mount - UDH interface and compatibility with different transmission choices help with set-up.
Anyone looking for a gravel bike for fast off-road riding
The stable geometry, stiffness and max tyre clearance up to 52 mm measured tyre make it suitable for fast dirt and mixed-surface riding. The rigid fork keeps the bike's direct character.
Ideal
Gravel races on fast courses
The configuration is built for gravel racing and prioritises speed. The 7% aerodynamic gain at 40 km/h follows the same direction.
Gravel racing · Aero 7% · Carbonio 01 Premium
Very suitable
High-tempo rides on dirt tracks
The geometry optimised for stability and the rigid fork help maintain control when the pace increases. The max tyre clearance up to 52 mm measured tyre broadens tyre choice.
Stability · Rigid fork · Tyres up to 52 mm
Very suitable
Building a custom race bike
The frame is supplied with fork and seatpost and uses the Full Mount - UDH interface. The set-up is suitable for a complete build starting from a single premium base.
Frame only · Full Mount - UDH · Seatpost included
Suitable
Use on fast white roads and mixed surfaces
The 700 wheels and rigid set-up favour rolling efficiency on mixed terrain. The frame remains focused on performance, not on the absorption typical of suspended solutions.
700 wheels · Rigid · Mixed surfaces
Gravel racer
Rider starting from a premium frame
It is designed for gravel racing and for gravel riding.
The frame is made from 01 Premium Carbon and the main material indicated is Carbonio 01 Premium.
The stated weight is 1855 g.
The specification lists hydraulic disc brakes, with Rotor compatibility for 160 mm front and 160 mm rear.
The max tyre clearance is 52 mm measured tyre. This leaves room for wider tyres for gravel use.
No, the bike is rigid.
The wheels indicated are 700.
Information prepared by the BSA team with the support of AI, based on the manufacturer's specifications.
