There is no shortage of wheel manufacturers in the United States, which is a good thing, but there are very few carbon wheel manufacturers here so when a new one pops up, we have to share it. Gulo Composites is from Western North Carolina and make their wheels – road, MTB, gravel – in-house. Their GRX-SL is an Allpavé wheel meant for road, gravel, trail, and everything in between. These superlight, 22mm internal width rims were designed with a 2mm spoke hole offset which helps create a very balanced wheel and the spoke hole angles were optimized at each point to work in perfect conjunction with Gulo’s ETI hubs and their unique GIS – Gulo Integrated System – spoke system. Let’s look at this system in detail below.
