GPR V5 Stabilizer Kits. The GPR v5 is the fifth generation steering damper with two variations V5D and V5S designed for dirt bikes, adventure bikes, Harley-Davidson and sport bikes but is also used on several of hybrid applications. Its compact and slim design allows for the damper to be mounted below the handlebars, out of harm's way, without raising the bars more than an inch. Frame mounts are machined steel or Cryogenic treated billet aluminum with stainless steel pin, and billet aluminum machined bar-mounts. Sport Bikes / Street Bikes: