The Sonic Spider IRS is the ultimate rear suspension for sport ATV's. Independent suspension is proven to be more stable and provide a much smoother ride then the solid axle alternative. Although great for racing, most of Sonic's happy customer’s don’t race, but enjoy the smooth ride and added performance the IRS has to offer.
Once you buy the Sonic Spider Kit you will be able to adapt it to any sport ATV you buy in the future. Many out dated components must be sold at a large loss but the Spider kit can be used for years to come.
