BMC Kaius 01 THREE

BMC Kaius 01 | Three – Premium Carbon Gravel Race Bike

The Kaius 01 | Three is a premium carbon gravel bike built to be your elite race companion across all terrains. Its advanced carbon layup and gravel-specific geometry strike the perfect balance of stiffness, lightweight efficiency, and compliance—delivering optimal traction on loose surfaces, front-end stability, and unmatched climbing prowess.

Harnessing BMC’s precision engineering and performance-driven road technologies, the Kaius is tuned specifically for gravel with:

• Engineered Kaius Carbon Fork for confident handling and vibration damping

• Signature ICS2 Stem and conventional bar for comfort and aerodynamics

• TCC Race Compliance for optimized ride feel and responsiveness

• 1x and 2x Drivetrain Compatibility

• Generous 44mm Tire Clearance for versatility on rough terrain

This bike is built for speed, endurance, and adventure—ready to dominate the gravel race scene and beyond.

Technical Specifications Frameset

Frame:
Kaius 01 Premium Carbon with Aerocore Design | ICS Technology Stealth Cable Routing | Stealth Dropout Design | TCC Race Compliance Level | Flat Mount Disc | 12 x 142mm Thru-Axle

Fork:
Kaius 01 Premium Carbon | ICS Technology, Stealth Cable Routing | TCC Race Compliance Level | Stealth Dropout Design | Flat Mount Disc | 12 x 100mm Thru-Axle

Cockpit

Stem:
BMC ICS2 | Integrated Cockpit System Technology

Handlebar:
BMC RAB 03 | Ergo Top Shape | Compact Bend

Seat

Seatpost:
Kaius 01 Premium Carbon D-Shaped Seatpost | 15mm Offset | D-Fender Compatible

Saddle:
Fizik Vento Argo R5 | 140mm

Drivetrain

Crankset:
SRAM Rival DUB WIDE

Chainrings:
43–30T

Cassette:
SRAM Rival AXS (XG-1250)

Cassette Size:
10–36T

Chain:
SRAM Rival

Front Derailleur:
SRAM Rival eTap AXS WIDE

Rear Derailleur:
SRAM Rival eTap AXS WIDE

Shifters:
SRAM Rival eTap AXS HRD

Gears:
2 x 12

Bottom Bracket:
PF86 Bottom Bracket

Brakes

Brake Levers / Calipers:
SRAM Rival eTap AXS HRD

Rotors:
SRAM Paceline | Centerlock

Rotor Size (F/R):
160 / 160mm

Wheels

Rims:
CRD-400 Carbon | Tubeless Ready | 40mm

Hubs (F/R):
CRD-400

Tires:
Pirelli Cinturato Gravel H | 40mm

Tubeless Information:
Tubeless Ready Rims | Tubetype Tires

Accessories

In the Box:
Aerocore Bottle Cages

Additional Information

Tire Clearance:
44mm measured tire

Weight without Pedals:
8.9 kg

ASTM Classification:
Level 2

System Weight Limit:
120 kg

BMC Kaius 01 | Three – Geometry & Sizing

Size: 47 / 51 / 54 / 56 / 58 / 61

• Rider Height (cm): <166 / 166–174 / 172–180 / 178–186 / 184–192 / >190

• Reach (mm): 390 / 397 / 401 / 405 / 410 / 414

• Stack (mm): 510 / 530 / 550 / 570 / 595 / 620

• Bar Drop (mm): 125 / 125 / 125 / 125 / 125 / 125

• Bar Reach (mm): 70 / 70 / 70 / 70 / 70 / 70

• Bar Width (mm): 400 / 420 / 420 / 420 / 420 / 440

• BB Drop (mm): 80 / 80 / 80 / 80 / 80 / 80

• Crank Length (mm): 170 / 170 / 172.5 / 172.5 / 175 / 175

• Fork Length (mm): 387 / 387 / 387 / 387 / 387 / 387

• Fork Rake (mm): 50 / 50 / 45 / 45 / 45 / 45

• Front Center (mm): 596 / 610 / 608 / 619 / 632 / 644

• Head Tube (mm): 85 / 106 / 123 / 144 / 170 / 196

• Head Tube Angle (°): 71 / 71 / 72 / 72 / 72 / 72

• Rear Center (mm): 420 / 420 / 420 / 420 / 420 / 420

• Seat Angle (°): 73 / 73 / 73 / 73 / 73 / 73

• Seat Tube (mm): 428 / 452 / 468 / 493 / 513 / 533

• Seatpost Length (mm): 280 / 320 / 360 / 360 / 400 / 400

• Seatpost Offset (mm): 15 / 15 / 15 / 15 / 15 / 15

• Standover Height (mm): 684 / 722 / 756 / 780 / 798 / 818

• Stem Angle (°): -12.5 / -12.5 / -12.5 / -12.5 / -12.5 / -12.5

• Stem Length (mm): 90 / 100 / 100 / 110 / 110 / 120

• Top Tube (mm): 546 / 559 / 569 / 579 / 592 / 604

• Trail (mm): 68 / 68 / 68 / 68 / 68 / 68

• Wheelbase (mm): 1003 / 1017 / 1015 / 1026 / 1039 / 1051

ICS Technical Manual