X-LAB RT9

Rochester Bicycle + Fitness Verified independent store

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The RT9 is X‑LAB’s ultralight climbing‑focused superbike, engineered to be as light as possible while still delivering top‑tier stiffness, responsiveness, and race‑level performanc e. At 6.2 kg, it’s one of the lightest production bikes available. Extremely lightweight: 6.20 kg / 13.64 lbs (size L) Premium carbon construction using Toray T1100 + M40X fibers World‑class component spec with Shimano Dura‑Ace Di2 Branta C50 ULR carbon wheelset with carbon spokes (1,230 g) Integrated Branta carbon crankset with power meter + Apple Find My anti‑theft 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, 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) SIZE OPTIONS XS / S / M / L Show more