Top quality, fully adjustable steering damper, ready to bolt on all 1986 to present Evolution Sportster models with 39mm forks. A must for fast riders who want to reduce the risk of "speed wobbles" drastically. Apart from being adjustable, Hyperpro steering dampers feature an active speed sensitive damping system. The steering damper has an anodized aluminum body in your choice of Hyperpro-purple or black. Mounting brackets are made from billet aluminum with an anodized finish. Steering damper and mounting kit are sold separately.