Spinergy is best remembered for its pioneering wheelsets of the 1990s, which featured full composite construction.

This latest offering from the American brand is more conventional in appearance, but stays true to Spinergy's business of applying advanced technology to its products.

Gravel riders looking for a wheelset with special terrain damping characteristics will find Spinergy's GX carbon line of great interest.

The design combines premium parts with a special rim design that is claimed to offer superior ride quality.

The GX Carbon wheels, sized for 700c tires, have a rim inner diameter of 18 mm, which is generous for the purpose. This inner diameter dimension should ensure casing stability with any new generation gravel tire.

You will notice that the profile of this GX gravel wheel is also 32 mm deep. For the rim construction, Spinergy has successfully molded a special foam with vibration-absorbing properties.

Besides the foam inlays on the rims, Spinergy's GX wheels use 24 PBO polymer spokes, which are lighter and stronger than steel. These spokes are mounted on a custom machined hub with Hadley freehubs and enduro bearings.

Spinergy's GX wheels can be ordered with a variety of compatible freehub bodies to suit your gravel drivetrain preference: Shimano/SRAM/Campy 9/10/11 or SRAM XD/XDR.

Carbon rim Considering the construction, PBO spokes, and custom hubs, the $999 price tag for Spinergy's GX wheelset is notably competitive and weighs only 1495g.

If you want the benefits of rim design and PBO spoke tension, but want a more affordable option, Synergy also offers the GX in aluminum. The price drops to $599 and sacrifices the vibration-absorbing foam inlays of the GX carbon, but the internal width increases from 18mm to 24mm.