X-LAB RT9 Road Bike / Frame
| Availability: | Out of stock |
X-LAB RT9 Consultations
Our Park Avenue Studio helps riders confirm X-LAB RT9 sizing, check availability, and plan complete lightweight performance builds.
Call our Park Ave. Studio to discuss fit, cockpit sizing, component options, frameset availability, and build direction.
• Contact & hours for our Park Avenue Studio and 6th Street Location
The X-LAB RT9 is an ultralight climbing-focused road platform built around a claimed approximately 550-gram carbon frame. Developed for riders who prioritize low weight, instant acceleration, and efficient climbing, the RT9 combines premium carbon construction with race geometry, a fully integrated cockpit, Dura-Ace Di2, a dual-sided power meter, and lightweight carbon wheels.
Ride Character
- Light, responsive climbing-bike feel
- Immediate acceleration under power
- Designed for steep climbs, elevation-heavy routes, and elite road performance
Fit & Geometry
- Race-focused road position
- Four frame sizes from XS through L
- Size-specific cockpit, crank, and fork dimensions
Lightweight Construction
- Toray T1100 + M40X carbon frame
- Claimed frame weight of approximately 550 grams
- Claimed complete-bike weight of approximately 6.20 kg
RT9 Fit & Cockpit Options
The RT9 uses a lightweight integrated carbon cockpit with size-specific dimensions intended to keep the front end precise while climbing and descending. Professional fit guidance is especially important when choosing between sizes, refining an aggressive road position, or selecting alternate cockpit and crank dimensions.
Integrated Cockpit
- Lightweight one-piece carbon handlebar and stem
- Size-specific width and stem-length configurations
- Compatible with standard two-bolt underside computer mounts
Drivetrain & Power
- Shimano Dura-Ace Di2 electronic shifting
- Branta dual-sided carbon power-meter crankset
- Apple Find My anti-theft technology
X-LAB RT9 Platform Notes
| Category | Ultralight Climbing / Road Racing |
| Frame | Toray T1100 + M40X Carbon |
| Claimed Frame Weight | ~550 g |
| Groupset | Shimano Dura-Ace Di2 |
| Crankset | Branta Carbon Dual-Sided Power Meter, 52/36T |
| Cassette | Shimano Dura-Ace 11–34T |
| Wheelset | Branta C50 ULR Carbon Rims and Spokes, ~1,230 g |
| Stock Tires | Michelin Pro 5, 700 × 28C |
| Maximum Tire Clearance | Up to 30 mm |
| Bottom Bracket | BSA / 29 mm Spindle |
| Derailleur Hanger | UDH Compatible |
| Claimed Complete Weight | ~6.20 kg / 13.64 lb, Size Large |
| Frame Sizes | XS / S / M / L |
| System Weight Limit | 100 kg / 220 lb Including Rider and Gear |
X-LAB RT9 Video
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Contact Fair Wheel Bikes to discuss X-LAB RT9 availability, sizing, cockpit selection, frameset options, and complete builds.