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SKU: XLRD-AD8BLUT-XS

AD8 Ultegra Di2

$7,999.00 RRP

  • "The best bike I've tested under $5000 USD" - Bicycling Magazine
  • Same wind-tunnel tested aero design as AD9
  • Lightweight yet durable Branta wheelset
  • "Feels like the one riders will circle first" - BikeRumor

Colour

Starlight Blue/White
Frame Size

AD8 Ultegra Di2

$7,999.00
|
Starlight Blue/White
|
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X-LAB AD8 X-LAB AD8

X-LAB AD8

Inspired by the WorldTour-proven AD9, the AD8 brings elite aerodynamic performance to a wider range of riders.

Built with the same racing philosophy but tuned for broader accessibility, the AD8 delivers responsive handling, high-speed efficiency, and the unmistakable feel of a true race platform.

It’s the essence of X-LAB speed—engineered for the real world.

Real Speed, Real Roads
Real Speed, Real Roads

Real Speed, Real Roads

The AD8 is built for riders who measure their rides in efforts, not excuses. It unleashes race-bred aerodynamics that you can feel on everyday roads, from solo tempo days to fast group rides.

WorldTour DNA, Made Attainable

WorldTour DNA, Made Attainable

It’s the same exact frame design and geometry as the AD9, because speed doesn’t need reinvention. The AD8 brings the platform raced at the highest levels into a build meant for serious riders chasing their next upgrade.

T800 Carbon, Dialed for Performance

T800 Carbon, Dialed for Performance

Engineered with Toray T800 carbon to hit the sweet spot: lightweight, stiff, and responsive, delivering that desirable aero advantage without the halo-bike price tag.

The Branta Advantage is Exclusive to X-LAB The Branta Advantage is Exclusive to X-LAB

The Branta Advantage is Exclusive to X-LAB

See Our In-House Components

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Highlights

Key Features

Branta carbon crankset with integrated power meter + Apple Find My anti-theft technology

Branta carbon crankset with integrated power meter + Apple Find My anti-theft technology

Shimano Ultegra Di2 Groupset

Shimano Ultegra Di2 Groupset

Branta C45 UL carbon wheelset with carbon spokes | 1,330 g

Branta C45 UL carbon wheelset with carbon spokes | 1,330 g

XDS carbon frameset with Toray T800 | Full bike 7.41kg

XDS carbon frameset with Toray T800 | Full bike 7.41kg

Technical Specifications

Frame

XDS Carbon Frame, Toray T-800, UDH Compatible

Fork

XDS Carbon Fork, Toray T-800, 100x12mm Thru-axle

Gear Shifter

Shimano Ultegra ST-R8170

Front Derailleur

Shimano Ultegra FD-R8150

Rear Derailleur

Shimano Ultegra RD-R8150

Crankset

Branta Carbon Power Meter Crankset, 52-36T, 29mm Alloy Spindle, Apple Find My Anti-Theft Technology

Cassette

Shimano Ultegra CS-R8101, 11-34T

Chain

Shimano CN-M7100

Bottom Bracket

T47 29mm

Rim

Branta C45 UL, Carbon Spokes

Tyre

Michelin Pro 5 700x28C

Seat Post

XDS Carbon Seatpost, Aero Profile

Saddle

Selle Italia SLR Boost, Carbon Rails

Handlebar

Branta Carbon Integrated

Stem

Branta Carbon Integrated

Front Brake

Shimano Ultegra BR-R8170

Rear Brake

Shimano Ultegra BR-R8170

*Continuous Product Improvement

Innovation never stands still. As part of our commitment to building the best possible bicycles, X-LAB reserves the right to update specifications, components, colors, and other product details at any time without notice. We make every effort to keep our published specifications current, but minor variations may occur between production batches. Please contact your local X-LAB dealer or Customer Support if you would like to confirm the latest specifications before purchase.

Geometry & Dimensions

FAQ

General
The AD8 is a high-performance aero road bike built for serious riders who want speed, electronic shifting, and high-end carbon component spec without paying pro-level prices. AD8 has aggressive race geometry and feels right at home in fast group rides or weekend crits.
Yes, AD8 is easy to assemble. You can refer to the written assembly guide or our assembly video to help guide you through the process. If you have any questions or doubts about assembling AD8 yourself, we recommend having it professionally assembled at your local bike shop.
AD8 has a weight limit of 220lbs (100kg), which includes the rider and any gear or cargo.
At this time AD8 is only available as a complete bike.
Any local bike shop will be able to provide general service for your AD8. For any component customization or warranty issues we recommend going to an X-LAB dealer to receive the best expert guidance and support.
Technical
AD8 has clearance for up to 32c tires.
Yes, the integrated power meter can connect to most major bike computers and fitness devices via ANT+. This allows live power data to be shared directly to your device. Live power data can also be shared via Bluetooth to the X-LAB Bikes app on your mobile device. At this time, live data can’t be shared to third party mobile apps via Bluetooth.
Yes, the AD8 frame is compatible with most wired and wireless electronic groupsets from all major drivetrain brands.
Yes, AD8 uses a UDH.
Yes, the aero cockpit is compatible with standard 2-bolt under-handlebar bike computer and combo mounts. A basic bike computer mounting kit is also provided with the bike.
AD8 can fit up to 56-43T 2x front chainrings or a 68T 1x front chainring.
Yes, X-LAB has 18 different size options for the integrated aero cockpit on AD8.
Yes, X-LAB offers numerous crank length options for the Branta carbon power meter crankset.
The Branta power meter crank is dual-sided, meaning it measures power from both left and right legs separately.
Yes - the rims and tires on AD8 are tubeless ready and tubeless rim tape is already installed. Tubeless valves and sealant must be purchased separately.

Manual Downloads

Unboxing & Assembling

Unbox and Assemble your AD8

Unbox and Assemble your AD8

Media Reviews