The XDS X-LAB AD9/RT9 is a lightweight, high-performance aero road bike that offers exceptional value and top-tier components, but it faces criticism for harsh ride quality, limited fit options, and availability challenges. Overall, it is seen as a competitive option against established Western brands, though it may lack the emotional appeal and refinement of some rivals.
Pros
- Excellent value for money: high-end spec (Dura-Ace, carbon wheels, power meter) at a price significantly lower than comparable Western brands.123
- Very lightweight: frame 550g, complete bike as low as 6.39kg.32
- Stiff and direct ride, with good handling and stability at high speeds.324
- Aerodynamic design, tested faster than some competitors in wind tunnel.14
- Threaded T47 bottom bracket and UDH hanger for easy maintenance and compatibility.123
- Race-ready out of the box with integrated power meter and carbon wheels.12
- Good build quality and finish on par with established brands.42
- Round tube design reduces crosswind sensitivity.3
Cons
- Harsh ride quality, especially on rough roads, attributed to stiff frame and carbon-spoked wheels.32
- Limited size range and fit options: only four/five sizes, and stock cockpit/crank lengths may not suit all riders.32
- Frame finish easily scratched (though later batches improved).3
- Cockpit cannot be swapped at point of sale, limiting adjustability.42
- Availability is limited and international distribution unclear.54
- Not the most exciting to ride; lacks emotional appeal.24
- Wheels have branding similar to Zipp, causing confusion.3
Key Facts
- Claimed frame weight 550g, total bike weight ranges from 6.39kg to 7.79kg depending on build and size.34
- Price varies: $8,000-$9,150 for complete builds, $3,751 for frameset.234
- Equipped with Shimano Dura-Ace Di2 groupset and carbon wheels (Branta C50, ~1230-1300g).123
- Uses T47 threaded bottom bracket and UDH derailleur hanger.123
- Frame material: Tore T1100 and M40X carbon fiber.3
- Available in sizes XS, S, M, L, XL (largest equivalent to 56cm).34
- Wind tunnel testing showed it faster than Canyon Aeroad and Scott Foil, but placed middle of the pack in another test.14
- Tire clearance up to 32mm (fork clearance tight with 30mm tires).14
Sources
- 1GC PerformanceThe BICYCLE INDUSTRY is NOT Ready for This BIKE *XDS AD9 X-LAB*
- 2David Arthur - Just Ride BikesAre Chinese Superbikes Finally This Good? (X-Lab AD9 Review)
- 3CADE MediaI Had Problems With The Worlds Lightest Bike... X-LAB RT9 First Look
- 4cyclingnews.comX-Lab AD9 review: Holds its own against WorldTour competitors, but it isn’t as cheap as you might expect
- 5Weight-WeeniesXDS X-Lab RT9 Review
Reviews & Ratings
13:47The reviewer discusses the XDS X-LAB AD9/RT9, a new aero road bike from a Chinese brand, highlighting its competitive pricing, high-end components, and performance. They note it is a fast, stiff, and well-equipped bike but lacks emotional appeal and has some minor fit and finish issues.
15:51The reviewer tested the XDS X-LAB AD9/RT9, a lightweight carbon road bike with disc brakes. They praised its low weight (6.39 kg) and stiff frame but criticized the harsh ride quality, which they attributed to the carbon-spoked Branta wheels. The frame finish was easily damaged, though XDS claimed to have addressed this in later batches. The bike's limited size range and the wheels' resemblance to Zipp were also noted as negatives.
17:24The reviewer presents the XDS X-LAB AD9 as a new 2026 model race bike that he believes will challenge the bicycle industry. He highlights its professional specifications, competitive pricing under $9,000 USD, and performance features, noting it is used by Team Astana in the pro peloton. He shares his initial riding impressions and details the bike's components, aerodynamics, and design.
The reviewer states that the XDS X-LAB AD9 is an extremely competent aero road bike that performs comparably to WorldTour competitors, with neutral handling and good sprinting capability, though it is not the most exciting ride and has some purchasing limitations.
The XDS X-LAB AD9 (also referred to as RT9) is a lightweight carbon road bike discussed by forum users. It's compared to the Specialized Aethos, with users noting its competitive weight (around 6.1kg in a ready-to-ride setup with 50mm aero wheels) and potential as a more affordable alternative. Key attributes mentioned include its use of high-modulus carbon fiber to achieve low weight, IS52 headset standard for compatibility, and mixed signals about international availability. Users debate whether it's a direct Aethos competitor or knockoff, with some noting limited production and high costs.
AI Summary
Pros
- Competitive lightweight performance similar to high-end bikes like Specialized Aethos
- Potential price advantage over comparable lightweight bikes
- Uses standard IS52 headset for easy component compatibility
Cons
- Limited availability and unclear international distribution strategy
- Proprietary handlebar/spacer system that may limit customization
- Reportedly high production costs leading to limited production
Key Points
- Weight around 6.1kg in ready-to-ride setup
- Uses high-modulus carbon fiber construction
- IS52 headset standard
more key points in the review
Where to Buy
XDS X-LAB AD9
AD9
Specifications
Included Components
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