River Wheels is the sister company of Proto, which should lend to their credibility. Proto, of course, is the OG wheel manufacturer and makes some of the best pro scooter wheels in the world. River is no different. They have their Rapids, which have a harder polyurethane than the Glides, which have a softer polyurethane. Sounds familiar, huh? Kind of the Proto Grippers and Sliders. Sometimes imitation is the sincerest form of flattery. With some wicked cool designs and durability to boot, River Wheel Co cranks out some of the finest trick scooter wheels in the industry.