X-Lab RT9 Dura-Ace Di2
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
03 9557 6461
It takes many years and experience with all types of riding disciplines, bike fitting, bike sizing, equipment, trends, and setups to be able to set people up properly from the beginning. Trust your local, independent retailer to get the most of your purchase, maintain your equipment, and assist you on your cycling journey over the years. Each bike purchased with us includes:
- Proper and detailed sizing – It takes years of experience to know what size works best for you, and for growing kids as well
- Professionally built and inspected by an experienced bicycle technician
- Free minor adjustments for 30 days from purchase
- Free first tuneup between 3 and 6 months from purchase – valued at $149 – does not include parts
- The Best Ongoing Workshop Team team for years of happy riding and well-maintained equipment
- Lifetime Warranty on bike frames and Limited Warranty on complete bikes, subject to brand-specific inclusions
- Parts Warranty on the drivetrain and key components, depending on brand and part
Also, depending on the rider’s needs and the type of bike, we regularly offer additional assistance with:
- Saddle recommendations for optimising fit and comfort
- Proper shoe, arch support & pedal setup advice
- Suspension setup for mountain bikes
- Custom sizing assistance to take a bike beyond getting the right size, like handlebar width & rotation, reach and grip
- Recommendations on tyre pressure, tyre/tread changes, and tubeless conversions
- Advice on nutrition, cold-weather riding, bike packing, riding techniques, event training and many other areas
CALL US FOR LATEST STOCK AND AVAILABILITY INFORMATION
Stock levels are improving this year and if we don’t have it in store it’s probably on it’s way! Supply chain issues have all bike brands experiencing significant delays. For some popular models and sizes we are taking preorders against future arrivals. Those with pre-orders in place will get priority allocations when limited stock arrives. 03 9557 6461
