The all new Radar Halo is a brand new, 59mm high-end wheel designed for derby. The Halo is a culmination of nearly 2 years worth of research and design, to create the most advanced core on the market, the startlingly light Halo provides great access to edge work without loss of grip and control. Other wheels may look like the Halo wheel but the Halo is a brand new design of wheel and Radar Wheels are once again leading the way again and are adapting to suit the needs of modern roller derby. The Halo features an innovative, signature H-shaped hub that is radically different to anything offered by any other brand on the market. More than simply a larger core, the Halo hub is designed for optimal performance with excellent feel. On previous wheels, the hub or core of the wheel has been smaller with a thicker layer of urethane. The urethane tends to build up around the edges and whilst this is great for grip and smooth rides across all hardnesses it\'s not so good for hockey and plow stops or for edge work. At the other end of the scale you have wheels with a bigger hub that have less urethane, which is perfect for stopping and edge work - but then you sacrifice on grip! Radar Wheels have designed the inner and outer rings of the Halo hub to be oversized, which reduces the amount of urethane on the edges of the wheel. This is the EXACT OPPOSITE to older speed skating wheels and makes it easier to perform stops while offering excellent response. The middle of the hub is smaller, or \'dropped\' and has room for more urethane, which offers grip, increases control and improves ride, giving skaters the best of both worlds! Available as a 59mm wheel and in nine hardnesses; 84a - Charcoal / Purple 86a - Charcoal / Orange 88a - Charcoal / Teal 91a - Charcoal / Yellow 93a - Charcoal / Pink 95a - Charcoal / Blue 97a - Charcoal / Green 99a - Charcoal / White 101a - Charcoal / Black