Glen Rwrote a review of Mercury Wheels X1 Carbon Enduro 29in Boost Wheelset on September 5, 2019
Familiarity: I've put it through the wringer
I am a stickler for attention to detail and the first thing I noticed was the box they ship them in is twice as thick as any other wheels I have received.
The Fiber-X (silver band in the middle) is eye catching, but what I noticed was the offset spokes. It seems like they did this to even the spoke tension creating the benefits of and assymetrical rim.
The hub has some fast engagement, but isn't really loud.
I mounted them up on my Santa Cruz and rode them on my favorite trail that has some nice rocky sections. I have broken a few hoops on this trail before, so it was a relief that the wheels took some abuse and are still straight. I ride at ~25psi and am 210 pounds, so there were a few instances where I kissed a few rocks on the rim.
These are some high end wheels and like the attention to detail they have engineered into the wheels. They even embossed their logo's into the sidewall, but blend in nicely until you get some dust from the trails on them.