The all new radar halo is a brand new 59mm high end wheel designed for derbythe 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 controlthe halo features an innovative signature h shaped hub more than simply a larger core the halo hub is designed for optimal performance with excellent feelon previous wheels the hub or core of the whee