BMC Kaius 01 Two Bike

The BMC Kaius 01 Two Bike is a Swiss-engineered race machine built for riders who show up to gravel events to compete, not just finish. This is the second generation of the Kaius platform, refined through BMC's in-house Impec Lab with a clear mandate: faster, more controlled, and more capable on the kind of terrain that separates fields. The frame is built from BMC's 01 Premium Carbon — their highest-grade layup — shaped into an Aerocore design that works alongside the ICS Technology stealth cable routing system to present a cleaner, more aerodynamic front-end. BMC's development process targets a 7% aerodynamic improvement at 40 km/h over the previous Kaius. On a race where the gaps come down to averages held over 100 kilometers of mixed surface, that margin is meaningful.

The frame's compliance is managed through BMC's TCC system at the Race level — a carbon layup strategy that damps sharp trail feedback without dulling the power transfer you need when you're pushing a hard pace. That compliance becomes most apparent when the road surface deteriorates: where a stiffer race carbon build punishes you over rough chatter, the Kaius absorbs it without letting the bike wander. The geometry was redesigned for Gen 2 with wider tire capability as a primary goal. The Kaius 01 Two clears up to 52mm measured tire width and ships with 700x45 Continental Terra Competition Race Rapid tubeless rubber from the factory — a fast-rolling, race-oriented tire choice that prioritizes speed over volume. The slacker head angle keeps the bike composed at high speed on loose surfaces, while the stack and reach figures position you forward and low enough to stay aero when the trail opens up.

ICS Carbon Aero Gen 2 Cockpit

Up front, the cockpit is BMC's ICS Carbon Aero Gen 2 — a one-piece, full-carbon bar-and-stem unit developed alongside the Tudor Pro Cycling Team. All cables route internally through the system, eliminating the exposed housing runs that create aerodynamic drag and visual clutter. The drops have 12 degrees of flare, which broadens your hand position in the drops without forcing an awkward wrist angle — particularly useful on technical descents where you want purchase on the bars. Reach is 81mm and drop is 135mm, setting up a moderately aggressive riding position that suits sustained efforts on varied terrain. Bar width and stem length scale with frame size across the range, from a 37cm bar with an 80mm stem on the 47 to a 41cm bar with a 110mm stem on the 61.

SRAM Force XPLR AXS Drivetrain

The drivetrain is SRAM Force XPLR AXS running a 1x13 configuration — the gravel-specific variant of the Force eTap platform. A 42T chainring pairs with a 10-46T cassette, covering the range from flat fireroad sprinting to steep singletrack climbs. Wireless electronic shifting eliminates cable stretch and mechanical drift, and the rear derailleur uses a full-mount UDH connection that adds stiffness to the drivetrain interface and simplifies derailleur service. The crankset is a SRAM Force XPLR AXS Wide with an integrated single-sided power meter — you're getting race-ready power data without sourcing a third-party unit. SRAM Force AXS hydraulic disc brakes handle stopping, running 160mm SRAM CenterLine X centerlock rotors front and rear.

CG 39 Carbon Wheelset and Finishing Kit

The stock wheelset is BMC's own CG 39 Carbon — a 39mm-deep tubeless-ready rim built with a straightpull spoke pattern and a Star Ratchet hub engagement system. At 39mm, the rim depth is enough to produce a meaningful aero benefit while staying manageable in crosswinds on open gravel roads. Continental Terra Competition Race Rapid tires in 700x45 fill out the contact patch — tubeless-ready front and rear, pairing well with the rim's internal width and the frame's compliance tuning. The saddle is a Fizik Vento Argo X3 with Kium rails in a 140mm width. BMC includes their Aerocore bottle cages and a cockpit-integrated computer mount that fits Garmin, Wahoo, and GoPro — a small detail that matters when you're setting up a bike for a race day. The Kaius 01 Two weighs 7.8kg in a size 54 with all accessories, pedals not included. Available in Copper Grey in sizes 47 through 61cm.