XDS X-LAB RT9

The lightest production road frame ever built.

• World’s lightest production carbon road frame
• A WorldTour-proven climbing bike
• Highest performing commercial carbon fiber

• Branta C50 ULR 50mm 1230g Carbon Wheelset

  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.

  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 Di2

  FRONT DERAILLEUR

  Shimano Dura-Ace FD-R9250 Di2

  SHIFTERS

  Shimano Dura-Ace ST-R9270 Di2

  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, Apple 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, Ceramic Bearings

  TIRES

  Michelin Pro 5 700x28C

  Max Tire Clearance: 30C

  SADDLE

  Selle Italia SLR Boost, Carbon Rails

  WEIGHT

  6.20 kg / 13.64 lbs (Size L)

  SIZE OPTIONS

  XS / S / M / L