XDS X-LAB
X-LAB is the culmination of three decades of engineering expertise, bringing together XDS’ most advanced technologies into an elite cycling platform. Founded in 1995 in Shenzhen by an engineer driven more by curiosity than convention, XDS has always prioritized materials science and structural integrity. That philosophy has evolved into one of the world’s most advanced vertically integrated bicycle manufacturing ecosystems.
With more than 15,000 employees, multiple global production hubs, and the capacity to produce millions of bicycles annually, XDS combines scale with precision. Its dedicated 80,000-square-meter carbon manufacturing facility and team of more than 200 R&D engineers allow for complete control over production—from frames and wheels to handlebars—ensuring uncompromising quality and rigorous testing. The result is equipment trusted at the highest levels of the sport, including the WorldTour.
Designed with carefully refined tube profiles to minimize drag and maximize speed, the AD9 is a WorldTour-worthy aerodynamic machine built to slice through the wind with remarkable efficiency.
The RT9 is the lightest production road bike in the world, featuring an astonishing 550-gram frame and a complete bike weight of just 6.2 kilograms—delivering that unmistakable sensation of flying uphill.
Equally suited for race events, weekend training rides, and daily commutes, the RS7 brings high-performance road cycling to everyday riders at an accessible price point.
Contender is proud to carry X-LAB’s premium road lineup, and our team is ready to help you find the perfect bike for your ride.
Performance Built With Purpose
New to the US market, X-LAB combines advanced carbon construction, thoughtful design, and strong overall value across its performance lineup. Raced at the highest level by the XDS-Astana Team, the brand brings together refined spec, clean integration, and a premium ride feel for riders looking for something fresh in the road and gravel category.
X-LAB AD8
The XDS X-LAB AD8 is a performance-focused aero road bike built to deliver race-inspired speed, efficiency, and modern technology to ambitious riders. Drawing directly from the WorldTour-tested AD9 platform, the AD8 shares the same aerodynamic frame design and geometry, offering responsive handling and proven aero performance for fast rides, hard efforts, and everyday training. Constructed from lightweight Toray T800 carbon, the frame balances stiffness, low weight, and ride compliance for efficient power transfer without sacrificing comfort on long days in the saddle. Shimano 105 Di2 electronic shifting provides precise, effortless gear changes, while the Branta carbon crankset features an integrated power meter and Apple Find My anti-theft technology. Finished with the lightweight Branta C45 UL carbon wheelset with carbon spokes, the AD8 delivers premium performance built for riders chasing speed and progression.
X-LAB AD9
Built for the demands of the WorldTour, the AD9 is X-LAB’s take on a modern aero race bike—fast on the flats, efficient on the climbs, and confident on the descent. Rather than chasing aerodynamic gains in isolation, the AD9 focuses on usable speed. The frame is constructed from Toray T1100 carbon fiber, one of the most advanced structural materials available, delivering a high stiffness-to-weight ratio that translates into the kind of responsiveness and control you want in a race bike you’ll ride all day. The AD9’s tube profiles are carefully developed to reduce resistance and maintain momentum. The result is a bike that slices through the varied terrain and less-than-ideal conditions you find in the real world. Raced by the XDS Astana WorldTour Team, the AD9 has proven itself in the demanding environments it was built for. X-LAB’s AD9 is a race bike for every challenge—it cuts through the wind as if it weren’t there, meeting every challenge with consistent, efficient performance.
X-LAB GT8
The XDS X-LAB GT8 is built for riders who see adventure beyond the pavement, combining speed, control, and confidence across changing terrain. As X-LAB’s first dedicated gravel platform, the GT8 is engineered to transition seamlessly from smooth roads to rugged trails without sacrificing performance. Constructed from advanced Toray T-800 carbon, including a full carbon frame, fork, seatpost, and semi-integrated cockpit, it delivers lightweight efficiency with all-day comfort. A generous 55mm tire clearance enhances grip and capability on rough surfaces, while integrated frame storage and multiple mounting points make it ready for long-distance exploration. Equipped with Shimano GRX 717 Di2 electronic shifting, a Branta C45 carbon wheelset, and a power meter-equipped crankset with Apple Find My tracking, the GT8 is built for riders who refuse limits.
X-LAB RS7
The RS7 is a race-influenced road bike that brings top performance to everyday riding at an unbeatable price. Built around the fundamentals—speed, responsive handling, and an efficient carbon frame that feels quick under power, it’s equally at home during weekend training sessions, commutes, or fast group rides. Its carbon construction, fully integrated carbon bar, Branta alloy power meter crankset, and 105 groupset bring a level of performance you’d expect from higher-ticket race bikes. The RS7 delivers a refined ride quality that stays consistent across changing terrain for a fraction of the cost of similarly-appointed bikes. The RS7 keeps things simple—it’s a fast, versatile, affordable road bike that doesn’t ask for attention but will undeniably get it.
X-LAB RT9
At only 550 grams for the frame and 6.2 kilograms for the full bike, the X-LAB RT9 is the lightest production road bike in the world. Built using a blend of Toray T1100 and M40X carbon fiber, it reflects a clear priority: reduce weight wherever possible while preserving the structural integrity needed for elite competition. With a purposeful round-tube architecture, the design reflects engineering purity at its finest. Its instantaneous responsiveness and climbing efficiency needs to be experienced to be understood—it just feels effortless. The RT9 is built for riders who want the incredible feeling of flying uphill—only attainable with the lightest bikes in the world.
XDS X-Lab SP5+
Wheel Size: 700c | Battery Size: 339Wh | Drive Unit: XDS Mid-drive X800 Motor
The X-LAB SP5+ is a lightweight, fitness-focused electric bike designed to make everyday riding faster, smoother, and more enjoyable while preserving the natural feel of a traditional bicycle. Weighing approximately 37 pounds, it delivers a more agile and responsive ride than typical commuter e-bikes, pairing a sporty yet comfortable geometry with fast-rolling 700c wheels and versatile all-terrain tires for confident handling on pavement, bike paths, and mixed surfaces. Powered by the XDS X800 mid-drive motor with up to 85Nm of torque and a Class 2 throttle system, the SP5+ offers smooth, intuitive pedal assistance for commuting, fitness rides, and weekend adventures. Shimano CUES 9-speed shifting, integrated lighting with brake light functionality, Apple Find My compatibility, and smartphone connectivity complete a sleek, practical package built for modern everyday riding.
X-LAB ST5+
Wheel Size: 700c | Battery Size: 619Wh | Drive Unit: XDS Mid-drive X800 Motor
The X-LAB ST5+ is a modern urban electric bike designed to bring comfort, capability, and smart performance to everyday riding. Built around an XDS X6 alloy frame with UDH compatibility, it combines an upright yet sporty geometry with an 80mm suspension fork to smooth rough pavement and city streets. Powered by the in-house X-LAB X800 mid-drive motor, the ST5+ delivers responsive pedal assistance with up to 95Nm of torque and a 619Wh integrated battery offering up to 75 miles of range. Shimano CUES 9-speed shifting and Branta four-piston hydraulic disc brakes provide confident performance across varying terrain and city conditions. With integrated lighting, a clean cockpit design, Apple-connected app functionality, and Class 2 operation unlockable to Class 3, the ST5+ is built for smarter, more versatile commuting.
At Contender Bicycles, our best tools for selling bikes are the people who ride them. Everyone at Contender Bicycles has extensive experience riding bikes across many brands. If you have any questions or want to discuss build options, we are here to help.