BONES WHEELS takes great pride in their unique formulas, which are meticulously developed and produced exclusively at their manufacturing plant in Ventura, CA. Through extensive research and experimentation, BONES WHEELS has created a range of urethanes that possess distinct physical and engineering properties, catering to specific skateboarding needs. One of their standout formulas is the BONES Street Tech Formula® (STF), which powers the renowned BONES STF wheels. These wheels are designed to provide an exceptional skating experience, delivering remarkable speed, reliable grip, and effortless slides, all without the worry of flat spotting. Another remarkable formula by BONES WHEELS is the Skatepark Formula™ (SPF). Crafted with utmost precision, this high-quality urethane is specifically engineered to resist flatspotting on slick or smooth surfaces. Despite its resistance to flatspotting, the SPF maintains a higher rebound, ensuring a quicker response and a faster roll. Skaters can confidently conquer any skatepark with the reliable performance of BONES SPF wheels. The BONES WHEELS factory has recently introduced yet another groundbreaking innovation, the X-Formula™ (XF). This remarkable formula combines the best of both worlds, allowing the wheels to roll smoothly over rough terrains like softer wheels, while also offering the sliding capabilities of harder wheels. The X-Formula™ is a testament to BONES WHEELS commitment to pushing the boundaries of skateboarding technology. BONES BEARINGS have the best reputation in the skateboard industry due to their performance and quality. Bones Reds, Swiss and the multiple variations upon those are perfect for any skateboard set up.