River Shadow Glide Wheels 30mm Wide - Premium Skateboard Wheels for Smooth Cruising & Street Performance" 优化说明（仅示例，实际只需返回标题）: 1. 包含核心关键词"Skateboard Wheels"提升SEO 2. 30mm宽度作为规格亮点保留 3. 添加使用场景描述（Cruising/Street Performance） 4. 品牌名"River Shadow"前置保持识别度 5. 形容词"Premium"增强吸引力 （根据要求，实际只需返回以下优化标题） **River Shadow Glide Wheels 30mm Wide - Premium Skateboard Wheels for Smooth Cruising & Street Performance**

River recognizes that as decks get wider and wider, larger wheels are required to sustain an optimal carve angle and prevent scraping on the left and right side of your deck. This is why River is introducing their largest wheels yet. These wheels have a diameter of 115mm and will automatically gain 2-3.5° on your carve angle over the industry standard 110mm. This means that your deck will scrape less on the left and right during various activities. These wheels are also 30mm wide and will have a larger contact point with the ground for increased grip, and a larger balance point for manuals and fakies. "Glide" refers to the urethane compound that River created and performs best in smoother park terrain. The urethane is softer, provides more grip, and will absorb impact better compared to River's Rapid urethane compound.