The Ratchet DF Race Upgrade Kit extends Degrees of Freedom technology to even more Ratchet freehub systems opening the door to more riders than ever before. For those already riding Ratchet DEG DF hubs the Ratchet DEG DF Race Kit delivers additional tuning options allowing you to dial in the perfect level of freedom for your riding style. Easily adjustable low maintenance and adding no weight the DF Technology offers additional degrees of freedom in tuning the riding characteristics of your bike. By allowing the freehub to rotate a specific range before engaging the influence of the chain on the rear suspension is reduced allowing the suspension to work freely. The system gives you the freedom to find the right setup for different types of terrain or bikes without using any tools.Achieve even more freedom to tune your perfect setup with race kits compatible with Ratchet DEG DF hubsAn anti-pedal kickback system upgrade works without additional parts and requires no more maintenance than a classic Ratchet systemUpgrade kits are available with or without installation tool