X-LAB RT9 Dura-Ace Di2 (2026) Black

$11,499.00

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Description

Stock is limited, Contact us in store for more information on availability and pricing!

The lightest production road frame ever built.

Let’s take a look at the X-LAB RT9 Dura-Ace Di2 (2026) Black

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.

Highlights RT9

  • 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

Please note: Images are for illustrative purposes only, actual specification may differ. 

Frame Specs
  • Sizes | XS, S, M, L
  • Colors | Black
  • Frame | XDS Carbon Frame, Toray T-1100 + M40X, UDH Compatible
  • Fork | XDS Carbon Fork, Toray T-1100, 100x12mm Thru-axle
Components
  • Handlebar | Branta Carbon Integrated
  • Seatpost | XDS Carbon Seatpost, 27.2mm
  • Saddle | Selle Italia SLR Boost, Carbon Rails
  • Pedals | N/A
Drivetrain
  • Shifters | Shimano Dura-Ace ST-R9270 Di2
  • Front Derailleur | Shimano Dura-Ace FD-R9250 Di2
  • Rear Derailleur | Shimano Dura-Ace RD-R9250 Di2
  • Brakes | Shimano Dura-Ace BR-R9270
  • Cassette | Shimano Dura-Ace CS-R9200, 11-34T
  • Chain | Shimano CN-M9100
  • Crankset | Branta Carbon Power Meter Crankset, 52-36T, 29mm Alloy Spindle, Apply Find My Anti-Theft Technology
  • Bottom Bracket | BSA 29mm
Wheels
  • Wheelset | Branta C50 ULR, Carbon Rims & Spokes
  • Tyres | Michelin Pro 5 700x28C
Other
  • Extras | WEIGHT: 6.20 kg / 13.64 lbs (Size L)

PMC is a specialist road store with the highest bike build standards and customer service record in the industry. Please contact any of our friendly staff if you are in need of any expert advice or answers to any queries you may have, or to take advantage of a test ride and experience the PMC advantage.
Our bike fitting service is done at time of purchase but is not limited to this only. We offer an on-going free bike fitting service within the first year to accommodate possible changes in your fitness, flexibility and performance. We can also assess current riding techniques such as pedalling efficiency, correct posture etc. and offer any advice on an individual basis in order to advance your cycling comfort and performance. This includes free head stem swap overs at any time within the first year. Our opinion is that the perfect bike fit is something that grows with your riding and can be fluid as you progress or adapt to your riding level. Every bike fit is individual to a riders certain requirements and correctly fitted, can turn a good bike riding experience into a great one. We also offer a free follow up service and highly recommend this is done within the first 6 months or the 500-1000km mark. This is the most important service a bike can get, with it getting the full treatment to ensure everything has bedded in well, ensuring your ride is maintained and performing at it's optimum level. Our service goes over and above the normal adjustments required with any issue arising being rectified free of charge unless due to normal wear and tear.