Unveiling the Truth: Can China's X-Lab AD9 Challenge the Elite WorldTour Bikes?
In a groundbreaking move, the XDS Astana WorldTour team has chosen the X-Lab AD9 as their race bike, marking a significant milestone as the first Chinese bike brand to sponsor a WorldTour team. This bold step sets the stage for a direct competition with renowned brands like Cervélo, Colnago, Specialized, and Trek.
XDS, the carbon experts behind X-Lab, boasts that their bike has been meticulously designed in a wind tunnel, claiming it 'rivals the top aero bikes on the market'. However, the AD9 differs from its competitors in some key aspects. Unlike the Wilier Filante SLR ID2 or Trek Madone, it doesn't feature integrated bottles, and its down tube, while wide, doesn't quite match the depth of tubes on bikes like the Ridley Noah Fast 3.0 or the Cervélo S5.
But here's where it gets controversial: looks can be deceiving. We've seen in our tests that an unconventional design doesn't always guarantee superior performance. Some wild designs have produced lightning-fast frames, but the addition of a rider can drastically change the outcome.
One intriguing aspect of the AD9 is the lack of available data. XDS hasn't released specific details about the bike's speed or aero benefits, leaving us to wonder how it stacks up against its established competitors. So, we took it to the wind tunnel to uncover the truth.
Our test protocols were designed to ensure maximum accuracy and comparability. We followed the same method used in our previous wind tunnel tests, pitting the AD9 against a baseline bike, the 2015 Trek Emonda ALR. By keeping the baseline bike consistent, we could accurately measure the 'delta' or difference in performance, regardless of atmospheric conditions.
We tested the AD9 at various 'yaw angles', representing different wind directions, and at a speed of 40km/h, a typical average for amateur road races and pro peloton breakaways. We measured the bike's performance with and without a rider, and also tested it with standardized wheels to isolate the frame's aero benefits.
The results were intriguing. When comparing the raw CdA data, the AD9 showed a more consistent performance across different wind angles compared to the Factor ONE, which excelled in lower yaw angles but struggled with crosswinds. With a rider onboard, the AD9's performance improved, even outpacing the Factor ONE at a 15° yaw angle.
When looking at the overall bike-only tests, the AD9 ranked in the bottom third, but with a rider, it moved up to the middle of the table, competing with established brands like Van Rysel and Pinarello. This consistency in performance, regardless of rider presence, suggests a well-designed frame.
The AD9's supplied wheels, the XDS Branta carbon wheels, performed admirably, only slightly behind the high-performing Enve SES 4.5 wheels. This suggests that the AD9's wheels are a solid choice and may not require an upgrade.
In conclusion, the X-Lab AD9 proves that Chinese bike manufacturers can hold their own against European and American giants. While it may not match the speed of top players like Factor ONE or Cervélo, it certainly competes with, and in some cases outperforms, several well-established WorldTour brands. And with its relatively affordable price tag, it's a compelling option for riders seeking a high-performance bike.
So, what do you think? Is the X-Lab AD9 a game-changer for Chinese bike manufacturers? Will we see more Chinese brands making waves in the WorldTour? Join the discussion and share your thoughts in the comments!
