
Velopedia Bicycle Archive
2026 X-LAB RT9
Original manufacturer specifications including DURA-ACE Di2 drivetrain, 700C wheels, 6.20 kg / 13.64 lbs (Size L) published weight.
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What Velopedia knows
- Model year
- 2026
- Category
- Road
- Original MSRP
- $9,150.00
- Sizes
- XS, S, M, L
- Colors
- Shadowbox
- Weight
- 6.20 kg / 13.64 lbs (Size L)
- Geometry
- 4 manufacturer sizes · Geometry context
- Record coverage
- 22 preserved details · 8 archived images · original MSRP · preserved geometry
- Archive ID
- 900001314
Frameset
| Frame Construction | XDS Carbon Frame, Toray T-1100 + M40X, UDH Compatible |
|---|---|
| Frame Material | Carbon |
| Fork | XDS Carbon Fork, Toray T-1100, 100x12mm Thru-axle |
| Fork Material | Carbon |
Drivetrain
| Component Group | Dura-Ace Di2 |
|---|---|
| Shifters | Shimano Dura-Ace ST-R9270 Di2 |
| Front Derailleur | Shimano Dura-Ace FD-R9250 Di2 |
| Rear Derailleur | Shimano Dura-Ace RD-R9250 Di2 |
| Crankset | Branta Carbon Power Meter Crankset, 52-36T; 29mm Alloy Spindle, Apple Find My Anti-Theft Technology |
| Bottom Bracket | BSA 29mm |
| Cassette | Shimano Dura-Ace CS-R9200, 11-34T |
| Chain | Shimano CN-M9100 |
Brakes
| Brakes | Shimano Dura-Ace BR-R9270; Rotors: Shimano SM-MT900, F:160mm R:140mm |
|---|
Cockpit & Contact Points
| Handlebar | Branta Carbon Integrated |
|---|---|
| Stem | Branta Carbon Integrated |
| Saddle | Selle Italia SLR Boost, Carbon Rails |
| Seatpost | XDS Carbon Seatpost, 27.2mm |
Wheels & Tires
| Wheels | Branta C50 ULR, Carbon Rims & Spokes, Ceramic Bearings |
|---|---|
| Front Tire | Michelin Pro 5 700x28C; Max Tire Clearance: 30C |
| Rear Tire | Michelin Pro 5 700x28C; Max Tire Clearance: 30C |
| Wheel Size | 700C |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | XS | S | M | L |
|---|---|---|---|---|
| Seat tube | 430 mm | 460 mm | 480 mm | 500 mm |
| Top tube | 498 mm | 520 mm | 540 mm | 563 mm |
| Head tube | 110 mm | 120 mm | 137 mm | 157 mm |
| Head-tube angle | 70.5° | 71.7° | 73° | 73.5° |
| Seat-tube angle | 75° | 74.2° | 74° | 73.5° |
| Chainstay / rear center | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 972.5 mm | 977 mm | 978 mm | 992 mm |
| Bottom-bracket drop | 74 mm | 74 mm | 72 mm | 72 mm |
| Reach | 362 mm | 372 mm | 384 mm | 396 mm |
| Stack | 510 mm | 525 mm | 543 mm | 567 mm |
| Standover height | 704 mm | 728 mm | 750 mm | 769 mm |
| Front center | 574 mm | 578 mm | 578 mm | 592 mm |
Geometry source: X-LAB first-party Basic geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
XS geometry
Archive context: Its reach of 362 mm sits toward the shorter end. The head angle of 70.5° sits toward the slacker end. Its wheelbase of 972.5 mm sits toward the shorter end.
Compared with 64 distinct road geometries in the XS-equivalent size cohort from model years 2024–2027 in the Velopedia archive.S geometry
Archive context: Its wheelbase of 977 mm sits toward the shorter end. Its reach of 372 mm sits somewhat shorter than typical. The chainstay of 410 mm sits somewhat shorter than typical.
Compared with 88 distinct road geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.M geometry
Archive context: Its wheelbase of 978 mm sits toward the shorter end. The head angle of 73° sits toward the steeper end. Its stack of 543 mm sits somewhat lower than typical.
Compared with 88 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.L geometry
Archive context: The head angle of 73.5° sits toward the steeper end. Its wheelbase of 992 mm sits toward the shorter end. The chainstay of 410 mm sits somewhat shorter than typical.
Compared with 77 distinct road geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2026 X-LAB RT9 · Road · Published sizes: XS, S, M, L
Frame and fork
Inspect the frame and fork →Archived: Frame: XDS Carbon Frame, Toray T-1100 + M40X, UDH Compatible · Fork: XDS Carbon Fork, Toray T-1100, 100x12mm Thru-axle · Carbon
Drivetrain
Check drivetrain wear →Archived: Group: DURA-ACE Di2 · Shifters: Shimano Dura-Ace ST-R9270 Di2 · Front derailleur: Shimano Dura-Ace FD-R9250 Di2 · Rear derailleur: Shimano Dura-Ace RD-R9250 Di2 · Crankset: Branta Carbon Power Meter Crankset, 52-36T; 29mm Alloy Spindle, Apple Find My Anti-Theft Technology · Bottom bracket: BSA 29mm · Cassette: Shimano Dura-Ace CS-R9200, 11-34T · Chain: Shimano CN-M9100
Brakes
Inspect the brakes →Archived: Brakes: Shimano Dura-Ace BR-R9270; Rotors: Shimano SM-MT900, F:160mm R:140mm
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700C · Wheels: Branta C50 ULR, Carbon Rims & Spokes, Ceramic Bearings · Front tire: Michelin Pro 5 700x28C; Max Tire Clearance: 30C · Rear tire: Michelin Pro 5 700x28C; Max Tire Clearance: 30C
Controls and contact points
Archived: Handlebar: Branta Carbon Integrated · Stem: Branta Carbon Integrated · Seatpost: XDS Carbon Seatpost, 27.2mm · Saddle: Selle Italia SLR Boost, Carbon Rails
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




