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BMC Kaius 01 Three Rival AXS Wide 2023 - Gravel Bike
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.
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.
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.
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.
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.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Kaius 01 Premium Carbon with Aerocore Design |
Fork | Kaius 01 Premium Carbon |
Stem | BMC RAB 02 Ergo Top Shape Compact Bend |
Bars | BMC RAB 02 Ergo Top Shape Compact Bend |
Front Brake | SRAM Rival eTap AXS HRD, Paceline Rotors (160/160) |
Rear Brake | SRAM Rival eTap AXS HRD, Paceline Rotors (160/160) |
Brake Lever | SRAM Rival eTap AXS |
Front Mech | SRAM Rival eTap AXS |
Rear Mech | SRAM RIVAL eTap AXS WIDE |
Shifters | SRAM Rival eTap AXS HRD |
Speed | 24 |
Rims | CRD-400 Carbon - Tubeless Ready - 40mm |
Front Hub | CRD-400 |
Rear Hub | CRD-400 |
Front Tyre | Pirelli Cinturato Gravel H - 40mm |
Rear Tyre | Pirelli Cinturato Gravel H - 40mm |
Seat Post | Kaius 01 Premium Carbon D-Shaped Seatpost - 15mm Offset |
Saddle | Fizik Vento Argo R5 |
Chainset | SRAM RIVAL AXS WIDE 43-30T |
Bottom Bracket | PF86 Bottom Bracket |
Chain | SRAM Rival 12 Speed |
Cassette | SRAM RIVAL AXS XG-1250 10-36T |
Pedals | Resin Platform |
BMC Kaius 2023 Size and Geometry Chart
Bike Size | 47 | 51 | 54 | 56 | 58 | 61 |
Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
Reach | 390 | 397 | 401 | 405 | 410 | 414 |
Stack | 510 | 530 | 550 | 570 | 595 | 620 |
Top Tube (effective) | 546 | 559 | 569 | 579 | 592 | 604 |
Seat Tube C-T | 428 | 452 | 468 | 493 | 513 | 533 |
Head Angle | 71 | 71 | 72 | 72 | 72 | 72 |
Seat Angle | 73 | 73 | 73 | 73 | 73 | 73 |
Head Tube | 85 | 106 | 123 | 144 | 170 | 196 |
Wheelbase | 1003 | 1017 | 1015 | 1026 | 1039 | 1051 |
Front Centre | 596 | 610 | 608 | 619 | 632 | 644 |
Standover | 684 | 722 | 756 | 780 | 798 | 818 |
BB Drop | 80 | 80 | 80 | 80 | 80 | 80 |
Fork Rake / Offset | 50 | 50 | 45 | 45 | 45 | 45 |
Trail | 66 | 66 | 68 | 68 | 68 | 68 |
Fork Length (A2C) | 387 | 387 | 387 | 387 | 387 | 387 |
Tyre Max Width | 400 | 420 | 420 | 420 | 420 | 440 |
Seatpost Length | 281.5 | 321.5 | 361.5 | 361.5 | 401.5 | 401.5 |
Seatpost Offset | 15 | 15 | 15 | 15 | 15 | 15 |
Stem Length | 90 | 100 | 100 | 110 | 110 | 120 |
Stem Angle | -12.5 | -12.5 | -12.5 | -12.5 | -12.5 | -12.5 |
Crank Length | 170 | 170 | 172.5 | 172.5 | 175 | 175 |
HB Drop | 117 | 117 | 117 | 117 | 117 | 117 |
HB Reach | 77 | 77 | 77 | 77 | 77 | 77 |
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