Strong, responsive and durable. The River Rapids will have you shredding the streets while keeping your flow. Featuring BUFF Core Technology to reduce dehubbing. All River Wheels come with bearing removal slots for taking bearings out with ease. These wheels come with High Quality River Flash Flood Bearings Pre-installed. All River Wheels come with a 90-day warranty against chunking. 110 MM Wheel-River Glides are soft and smooth. Anodized 6061 T-6 Aluminum Core for Durability. 100% Made In California.