I bought my Wheeltop EDS GeX Gravel 1x12 in July 2025 via AliExpress. Until the failure, I was actually quite happy with the groupset.
At the beginning of August 2026, the right shifter failed. The two buttons are no longer recognized separately. No matter how I assign them in the app, both buttons always perform the same function. The shifter is still detected correctly, the batteries are new, the firmware is up to date, I re-paired everything, performed a reset. The problem remains fully reproducible. I also sent Wheeltop videos showing the problem.
I contacted Wheeltop but the response was simply: warranty expired. Yes, but by like 5 days. No exceptions, no goodwill gestures, they still didn't even attempt to analyze the technical problem.
No proper troubleshooting, no further assistance, no offer of a replacement shifter. Basically: buy a new groupset.
I actually liked the groupset itself. But what's the point of an affordable electronic groupset if a single shifter fails after just over a year and the manufacturer shows no interest in helping to resolve the problem?
Based on this experience, I cannot recommend buying a Wheeltop groupset. I would rather spend more on Shimano or SRAM and have proper spare parts availability and customer support.
It's a shame, because I actually found the product concept very interesting.