Rider Approved Designs introduces the Jimmy Riha Influence. The Rider Approved Designs Jimmy Riha Influence Pro-model wheels feature a proprietary urethane to maximize the ease of sliding. The smaller versatile shape is ready for anything from downhill freeriding to city crushing. It features the Crown Core with a 63mm diameter, 34mm Contact patch, and 80a durometer. This wheel is designed to have fun wherever you find yourself skating. Look for features and have fun on the Jimmy Riha Influence.