BMC Kaius 01 THREE

Kaius is a premium carbon gravel bike built to be your elite race companion for all terrains. The unprecedented carbon layup and gravel-specific geometry ensure the perfect balance of stiffness, lightweight, and compliance for optimal traction on loose surfaces, front-end stability, and unmatched climbing prowess. Harnessing the precision and performance of our renowned leading road technologies, Kaius is a race machine tuned to the gravel wavelength with the engineered Kaius fork, our signature ICS2 stem and conventional bar, TCC Race compliance, compatibility with 1x and 2x drivetrains and up to 44 mm of tire clearance.

Speed Unbound
The innovative premium carbon layup uses ultra high-module fibres for unmatched stiffness resulting in maximum power transfer and minimal weight. Kaius boasts our Tuned Compliance Concept Race Technology for a comfortable ride on rough surfaces and targeted reinforcements protect your frame against the demands of gravel racing.

Race-ready Gravel Geometry
Kaius was built with one purpose: to be fast on gravel roads. That is why we produced a gravel-specific frame with a longer reach shifting the front wheel forward to improve stability and increase traction on loose surfaces. With the shorter stem providing responsive handling, Kaius sports a progressive and race-tuned geometry for evolving riding styles.

Integrated Cockpit System (ICS)
ICS2, with significant weight savings, high stiffness, clean aesthetics and integrated device mounts for the most popular devices.

Aerocore Design
Kaius comes in at the highest level of functional integration with our Aerocore design. This evolved solution integrates the bottle cages into the frame to optimize aerodynamic performance.

Lightweight
Being a race bike, Kaius is not only stiff and comfortable but also lightweight. With a frame weighing only 910g, the fork 400g, a seat post at 160g, and the cockpit clocking in at 315g, we produced a module that is going to make you fly up the hills at a lightweight 1.785 kg.

Versatility
Versatile by design, Kaius comes with all you would expect from a high-end gravel race bike. It can fit 1x and 2x drivetrains, tires up to 44 mm, a dropper post, our new MTT Suspensions Stem, and top tube bolt-on bags.

Full Specifications

Frame
Kaius 01 Premium Carbon with Aerocore Design
ICS Technology, Stealth Cable Routing
Integrated Aerocore Bottle Cages
Stealth Dropout Design
TCC Race Compliance Level
PF86 Bottom Bracket
Flat Mount Disc
12x142mm Thru-Axle

Fork
Kaius 01 Premium Carbon
ICS Technology, Stealth Cable Routing
TCC Race Compliance Level
Stealth Dropout Design
Flat Mount Disc
12x100mm Thru-Axle

Gears: 2 x 12
Chainwheel: SRAM RIVAL AXS WIDE 43-30T
Cassette: SRAM RIVAL AXS XG-1250 10-36T
Chain: SRAM RIVAL 12 Speed
Rear Derailleur: SRAM RIVAL eTap AXS WIDE
Shifters: SRAM RIVAL eTap AXS HRD
Brakes: SRAM Rival eTap AXS HRD, Paceline Rotors (160/160)
Handlebar: BMC RAB 02 Ergo Top Shape Compact Bend
Stem: BMC ICS2 - Integrated Cockpit Design
Seatpost: Kaius 01 Premium Carbon D-Shaped Seatpost - 15mm Offset
Saddle: Fizik Vento Argo R5
Hubs: CRD-400
Rims: CRD-400 Carbon - Tubeless Ready - 40mm
Tires: Pirelli Cinturato Gravel H - 40mm
Tire Clearance: 44mm (Measured Width)
Extras: Aerocore Bottle Cages
Weight Limit: 120 Kg
ASTM Classification: Level 2

Technical Details & Manuals

Frameset

Frameset
Kaius 01 Premium Carbon frame: ACE+ Technology, Aerocore design, Tuned Compliance Concept Race
Kaius 01 Premium Carbon fork: ACE+ Technology, Tuned Compliance Concept Race
Kaius 01 Premium Carbon D-shape seatpost
Kaius 01 features Integrated Cockpit System (ICS) technology to deliver a completely integrated cockpit and cable routing. ICS technology requires a specific fork design, easily identified by the rectangular steerer.*

Technical Details
Aerocore: aerodynamic featherweight carbon bottle cage system
Downtube bottle cage
Seat tube bottle cage
Stealth cable management
Integrated seat clamp
Stealth dropouts with dedicated stealth thru-axles
ASTM level 2
Only use stealth thru-axles provided with Kaius 01 bikes and modules. Stealth dropouts and thru-axles are compatible with most direct-drive indoor trainers.*

Recommended Trainers:
WAHOO: Kickr, Kickr Core
TACX: Neo 2T Smart, Flux 2 Smart, Flux S Smart
ELITE: Direto XR, Suito, Turno

Frame Weight**: 910 g
Fork Weight**: 410 g
Seatpost Weight**: 160 g

Cockpit
ICS Carbon Aero Cockpit - Superlight Aerodynamic One-Piece Cockpit
One-piece design-optimized for aerodynamic performance, low weight and stiffness
Garmin/GoPro integrated computer mount (Wahoo-ready with GoPro-compatible mounts)
Handlebar reach/drop: 72/135 mm
Stem angle: -15˚
Handlebar reach/drop and stem angle are the same for every ICS Carbon Aero size
Bar width & stem length: 420 x 80 / 90 / 100 / 110 / 120 / 130 / 140 mm
315 g (complete cockpit)

ICS2 with RAB02 Bar
Premium, 2nd generation Integrated Cockpit System stem with internal cable routing and easy fit adjustment
Two-piece system with Garmin/GoPro integrated computer mount (Wahoo-ready with GoPro-compatible mounts)
Handlebar reach/drop: 70/125 mm (RAB02)
Stem angle: -15˚ (ICS2)
185 g (stem)
KAIUS 01 is compatible with any ICS cockpit configuration using the dedicated topcones (ICS Carbon, ICS Carbon Aero, ICS Aero, ICS2, ICS01, ICS01 0 Degrees, ICS MTT Stem).*

Compatibility
Frame, Fork and Seatpost
ICS specific fork with tapered steerer, flat mount
Compatible with electronic groupsets only
PF86 bottom bracket
D-Shape seatpost
Braze-on front derailleur mount
Replaceable ultra light sandwich rear derailleur hanger
Max 52-36T (2x outer ring 46mm chainline)
Max 52T (1x 45mm chainline) (3mm clearance)

Brakes
Front brake: flat mount, 160 mm rotors only
Rear brake: flat mount, 140/160 mm rotors

Wheels and Axles
Designed for 42 mm, maximum tire clearance 44 mm (actual measured width)
Front stealth thru-axle: 12x100 mm (diameter/frame spacing)
Rear stealth thru-axle: 12x142 mm (diameter/frame spacing)

*Notes about proprietary technology
**Weight for the lightest finish, including complete hardware with size 54 frames
***More info about ASTM classification on our website