X-lab 2027 RT9 Dura-ace DI2 (TAKING PRE-ORDERS FOR SEPTEMBER DELIVERY)

X-Lab RT9 Dura-Ace Di2
$11,499.99
Tax included. Shipping calculated at checkout.
The RT9 redefines what is possible in lightweight performance engineering. Constructed from Toray T1100 carbon and refined through extensive structural analysis, the frame weighs an astonishing 550 grams while maintaining the stiffness and durability required for elite racing. The result is a machine built for the purest expression of climbing performance - with instant acceleration, unmatched efficiency, and effortless elevation gain. The X-Lab RT9 is the lightest production road bike frame in the world.
When the goal is pure elevation, grams matter. The RT9 begins with a frame engineered to approximately 550 grams, built to feel weightless on the steepest pitches while staying composed under real-world power. Every touchpoint is designed for climbing: a lightweight, responsive integrated cockpit that keeps the front end precise when the road turns vertical and the pace turns personal. From seatpost to tube junctions, the RT9's integration is obsessively refined - cleaner lines, cleaner airflow, and a ride that feels like perpetual poetry in motion.
Highlights
- 550g Toray T-1100 carbon frame - the world's lightest production road bike frame
- Full Shimano Dura-Ace Di2 12-speed wireless electronic groupset
- Branta C50 ULR carbon wheelset with carbon spokes and ceramic bearings (1,230g)
- Branta carbon power meter crankset with integrated Apple Find My anti-theft
- Seamlessly integrated carbon cockpit, UDH compatible dropout
Color:Black
SM - 52MD - 54LG - 56
FRAMESET
Frame: XDS Carbon, Toray T-1100 + M40X, UDH Compatible
Fork: XDS Carbon, Toray T-1100, 100x12mm Thru-Axle
COCKPIT
Handlebar/Stem: Branta Carbon Integrated
Seatpost: XDS Carbon, 27.2mm
Saddle: Selle Italia SLR Boost, Carbon Rails
DRIVETRAIN
Crankset: Branta Carbon Power Meter, 52-36T (Apple Find My)
Rear Derailleur: Shimano Dura-Ace RD-R9250 Di2
Front Derailleur: Shimano Dura-Ace FD-R9250 Di2
Shifters: Shimano Dura-Ace ST-R9270 Di2
Chain: Shimano CN-M9100
Cassette: Shimano Dura-Ace CS-R9200, 11-34T
BRAKES
Brakes: Shimano Dura-Ace BR-R9270
Rotors: SM-MT900, F:160mm / R:140mm
WHEELS & TYRES
Wheelset: Branta C50 ULR Carbon, Carbon Spokes, Ceramic Bearings (1,230g)
Tyres: Michelin Pro 5, 700x28C
Product specifications are subject to change without notice. Please contact us to confirm current specifications before purchasing.