The lightest production road frame ever built.
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 RT9 is the lightest production road bike frame in the world. Period.
The 550g Frame to Defy Gravity
When the goal is pure elevation, grams matter. The RT9 begins with a frame engineered to ~550 grams, built to feel weightless on the steepest pitches while staying composed under real-world power.
A Cockpit Built for Switchbacks
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.
Seamless Integration, Elite Efficiency
From seatpost to tube junctions, RT9’s integration is obsessively refined to complement an all-out climbing machine with cleaner lines, cleaner airflow, and a ride that feels like perpetual poetry in motion.
Key Features
- Branta C50 ULR carbon wheelset with carbon spokes | 1,230 g
- Branta carbon crankset with integrated power meter + Apple Find My anti-theft technology
- Shimano Dura-Ace groupset
- XDS carbon frameset with Toray T1100, Full bike 6.2kg
Technical Specifications
- FRAME
- XDS Carbon Frame, Toray T-1100 + M40X, UDH Compatible
- FORK
- XDS Carbon Fork, Toray T-1100, 100x12mm Thru-axle
- HANDLEBAR / STEM
- Branta Carbon Integrated
- SEATPOST
- XDS Carbon Seatpost, 27.2mm
- REAR DERAILLEUR
- Shimano Dura-Ace RD-R9250
- FRONT DERAILLEUR
- Shimano Dura-Ace FD-R9250
- SHIFTERS
- Shimano Dura-Ace ST-R9270
- BRAKES
- Shimano Dura-Ace BR-R9270
- CASSETTE
- Shimano Dura-Ace CS-R9200, 11-34T
- CRANKSET
- Branta Carbon Power Meter Crankset, 52-36T,
- 29mm Alloy Spindle, Apply Find My Anti-Theft Technology
- BOTTOM BRACKET
- BSA 29mm
- ROTORS
- Shimano SM-MT900, F:160mm R:140mm
- CHAIN
- Shimano CN-M9100
- WHEELSET
- Branta C50 ULR, Carbon Rims & Spokes
- TIRES
- Michelin Pro 5 700x28C
- SADDLE
- Selle Italia SLR Boost, Carbon Rails
- WEIGHT
- 6.20 kg / 13.64 lbs (Size L)
Geometry & Dimensions
Basic geometry (XS / S / M / L)
- Seat Tube Length in mm: 430 460 480 500
- Top Tube Length in mm: 498 520 540 563
- Head Tube Length in mm: 110 120 137 157
- Seat Tube Angle: 75° 74.2° 74° 73.5°
- Head Tube Angle: 70.5° 71.7° 73° 73.5°
- Chainstay in mm: 410 410 410 410
- Wheelbase in mm: 972.5 977 978 992
- Bottom Bracket Drop in mm: 74 74 72 72
- Stack in mm: 510 525 543 567
- Reach in mm: 362 372 384 396
- Front Center in mm: 574 578 578 592
- Stand Over in mm: 704 728 750 769
Component Geometry (XS / S / M / L)
- Fork Rake/Offset in mm: 50 50 44 44
- Trail in mm: 68 61 59 56
- Handlebar in mm: 360 360 380 380
- Stem in mm: 80 100 100 120
- Crankset in mm: 160 160 165 165
- Seat Post in mm: 300 300 350 350
Product images are for illustrative purposes only and may not reflect the exact specifications of the item supplied.
Specifications, features, and availability are subject to change without notice due to manufacturer updates and component availability.
