X-LAB AD8 Ultegra Di2
X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black - Image 2
X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black - Image 3
X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black - Image 4
X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black - Image 5

X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black

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$7,999.00

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Description

X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black : Stock is limited, Contact us in store for more information on availability and pricing!

Pure racing DNA, refined for the real world.

Let’s take a look at the X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black:

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.

X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black

X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black: 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.

X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black

WorldTour DNA, Made Attainable

It’s the same exact frame design and geometry as the AD9, because speed doesn’t need reinvention. The X-LAB AD8 Ultegra Di2 (2026) Sunspot Red/Black brings the platform raced at the highest levels into a build meant for serious riders chasing their next upgrade.

X-LAB AD8 Ultegra Di2 Sunspot Red/Black - Bike

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

The AD8 pairs its Ultegra Di2 drivetrain with X-LAB’s own Branta carbon crankset, built in-house so the power meter isn’t bolted on as an afterthought but engineered into the crank spider from the start.

Direct-drive, dual-sided measurement reads left and right leg power independently, giving a genuinely accurate picture of effort and pedaling balance rather than an estimate doubled from one side.

Data is validated across millions of ride data points and transmits with a 1.8-millisecond response time over ANT+ or Bluetooth, so it drops straight into your head unit, the X-LAB Bikes app, or any major training platform with no lag between effort and readout.

Shimano Ultegra Di2 (R8100) Groupset

The X-LAB AD8 is equipped with Shimano’s Ultegra Di2 R8100 groupset, the same 12-speed electronic platform Shimano built to bring Dura-Ace-level performance within reach. – Ultegra Groupset

Shifting is semi-wireless, with the derailleurs communicating wirelessly to the shifters while drawing power from a single internal battery, so gear changes land instantly and silently under load, in the wet, or mid-sprint.

Shimano’s Synchronised Shift logic manages front and rear derailleurs together for seamless transitions across the range, while hydraulic disc brakes with Servo Wave technology deliver strong, modulated stopping power in all conditions.

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

The AD8 rolls on X-LAB’s own Branta C45 UL wheelset – carbon rims paired with carbon spokes rather than the steel or bladed-aluminium spokes most wheels in this class still use.

Swapping to carbon spokes cuts rotating weight right at the rim, where it matters most for acceleration and how quickly the wheel spins back up out of a corner, while also damping road buzz better than metal spokes can.

The whole wheelset comes in at 1,330g, and carries over the same “Branta Advantage” philosophy as the rest of the range: high-modulus T800/T1100 carbon construction, ceramic bearings, and a titanium alloy ratchet hub internals, engineering that’s been validated racing with the Laboral Kutxa–Fundación Euskadi UCI Women’s ProTeam rather than just on a bench.

XDS carbon frameset with Toray T800 | Full bike 7.41kg

The AD8’s frame is built from Toray T800 carbon, the layup X-LAB chose specifically to trade a little of the flagship AD9’s ultra-high-modulus material for extra durability , the sweet spot between light, stiff and responsive, without the fragility that can come with chasing the absolute lightest layup.

What you’re not giving up is the design: the AD8 shares the exact same wind-tunnel-tested aero shape and geometry as the WorldTour-raced AD9, so the aggressive tube profiles, aero-section seatpost, and fully integrated Branta carbon cockpit that cut drag on the team bike carry straight over.

It’s UDH compatible, and despite the aero focus there’s clearance for tires up to 32mm, so the race geometry doesn’t come at the cost of being able to run something more comfortable on rough roads.

Please note: Images are for illustrative purposes only, actual specification may differ. 

Frame Specs
  • Sizes | XS, S, L, XL
  • Colors | Sunspot Red/Black
  • Frame | XDS Carbon Frame
  • Fork | XDS Carbon Fork, 100x12mm Thru-axle
Components
  • Handlebar | Branta Carbon Integrated
  • Seatpost | XDS Carbon Seatpost, Aero Shape
  • Saddle | XDS Carbon Seatpost, Aero Shape
  • Pedals | N/A
Drivetrain
  • Shifters | Shimano Ultegra ST-R8170
  • Front Derailleur | Shimano Ultegra FD-R8150
  • Rear Derailleur | Shimano Ultegra RD-R8150
  • Brakes | Shimano Ultegra BR-R8170
  • Cassette | Shimano Ultegra CS-R8101, 11-34T
  • Chain | Shimano CN-M7100
  • Crankset | Shimano Ultegra Crankset, 52-36T 170mm
  • Bottom Bracket | T47 29mm
Wheels
  • Wheelset | Branta C45 UL, Carbon Rims & Spokes
  • Tyres | Michelin Pro 5 700x28C
Other
  • Extras | WEIGHT: 7.41 kg / 16.3 lbs (Size L)
PMC is a specialist road store with the highest bike build standards and customer service record in the industry. Please contact any of our friendly staff if you are in need of any expert advice or answers to any queries you may have, or to take advantage of a test ride and experience the PMC advantage.
Our bike fitting service is done at time of purchase but is not limited to this only. We offer an on-going free bike fitting service within the first year to accommodate possible changes in your fitness, flexibility and performance. We can also assess current riding techniques such as pedalling efficiency, correct posture etc. and offer any advice on an individual basis in order to advance your cycling comfort and performance. This includes free head stem swap overs at any time within the first year. Our opinion is that the perfect bike fit is something that grows with your riding and can be fluid as you progress or adapt to your riding level. Every bike fit is individual to a riders certain requirements and correctly fitted, can turn a good bike riding experience into a great one. We also offer a free follow up service and highly recommend this is done within the first 6 months or the 500-1000km mark. This is the most important service a bike can get, with it getting the full treatment to ensure everything has bedded in well, ensuring your ride is maintained and performing at it's optimum level. Our service goes over and above the normal adjustments required with any issue arising being rectified free of charge unless due to normal wear and tear.

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