Over the past few years, Spinergy has been mounting a comeback. A big part of that has been their entry into the world of gravel. First with the GX, and most recently the GXX, now Spinergy is taking things to the extreme with the GX MAX.
As the world of gravel evolves, so must the wheels and tires. Along with the super light bikes built for racing, there’s also a segment of gravel where people are riding their bikes more like mountain bikes than gravel bikes. That’s where the GX MAX comes in.
Using the same 24mm inner rim width as the GXX (but with a different profile), the GX MAX is built for the wider tires popular with this segment of the market. The wheels also get stronger with more spokes and thicker axles to withstand jumps, drops, and any other shenanigans you plan to pull on your “gravel” bike.
Concerned about the strength of the Spinergy PBO (Polyphenylene Bensobisoxazole fiber) spoke? Spinergy points out that the same technology is used on their motocross wheels – so it should be more than capable of holding up to gravel duties. Their PBO spokes have been used for years and claim 3x the strength of steel, half the weight, and offer vibration damping not found with metal spokes.
Offered in 700c and 650b sizes, the GX MAX wheels are built with welded aluminum rims that measure 24mm internal, 28mm external, with a 20mm depth. Each wheel uses 28 PBO spokes with a radial/2x lacing pattern. Those spokes are offered in a range of colors, including custom patterns. Hubs are available with QR, 12, or 15mm thru axles up front, and QR or 142 x 12mm thru axles out back, and Shimano HG or SRAM XDR freehub bodies with CenterLock brake mounts. Claimed weight of the 700c set is 1,622g, and the wheels are priced at $699 per pair.