WHEELTOP EDS OX 2.0 Review: Can This Wireless MTB Groupset Really Rival SRAM?

I just finished my first proper trail ride with the new WHEELTOP EDS OX 2.0 wireless electronic rear derailleur, and honestly, I am thoroughly surprised. Having already put countless kilometers on the version 1.0 and also using their gravel version, I was eager to see how this upgrade performs. Right out of the box, the packaging is premium—no bubble wrap here, just high-density foam. The shifter/remote feels a bit bulky, but the construction, materials, and overall design of the rear derailleur itself have absolutely nothing to envy from the big brands. Compared to the 1.0, the design is completely revamped, and it looks very similar to their gravel GeX counterpart, much like how Shimano or SRAM keep their mountain and gravel architectures nearly identical.

The absolute best part about WHEELTOP is its high compatibility. You can configure it from 3-speed all the way up to 14-speed via their app. I have it set to a 12-speed Shimano cassette. Installation was incredibly straightforward (just remember to route the chain correctly through the bottom jockey wheel). On my first run, even before doing any micro-adjustments, it successfully shifted all the way to the 12th cog on the first try.

To give you an honest perspective, I did a highly unscientific, real-world comparison between my EDS OX 2.0—which costs around €399 on their website—and a friend's top-tier SRAM XX T-Type drivetrain mounted on a high-end e-MTB. Now, it's not a perfectly fair test since my bike is five years old and pretty beaten up, but looking at the systems themselves, the value proposition is night and day. The SRAM XX T-Type costs significantly more, and standard options like the SRAM GX AXS often don't even include the shifter or the battery and charger in the base price, forcing you to spend more. Furthermore, with SRAM T-Type, you are completely locked into their specific ecosystem—you must use their T-Type chain, chainring, and cassette. WHEELTOP, on the other hand, is compatible with nearly 90% of the drivetrains on the market, working flawlessly with cassettes ranging from 10 to 52 teeth and various chain brands.

Out on the rocky, brutal descents, the performance spoke for itself. I was worried about chain bounce, but the steady chain device (chain stabilizer) holds up phenomenally well against heavy vibrations. The shifting is incredibly fast and crisp—not just when climbing under load, but it drops gears instantly and precisely when you need to pick up speed on fast sections. Even after taking a massive crash during the test ride, the derailleur kept working flawlessly. Also, keep in mind that WHEELTOP recently acquired Rotor, and Rotor sells a high-end variant of this tech; if Rotor's system is praised for its quality, it proves the underlying WHEELTOP engineering is rock solid. I am not here to force anything on you—if you want to stick with SRAM, go for it. But after running their version 1, the gravel kit, and now this version 2.0, I can confidently say it offers unbelievable value for the price.