Rear Independent Suspision IRS versus Solid Rear Axle SRA comparison

The advantages of a rear independent suspension (i) versus a solid rear axle (SRA).  A solid rear axle can be a lot of fun and there are advantages to both rear suspension types.  This article will explain the differences and what you can expect out of both.

The solid rear axle has been around since the first ATV rolled off the assembly line.  It's tried and true and has some unique advantages over the newer independent rear suspension.  The SRA offers a solid more stable ride and is a top choice for folks who enjoy riding their quad aggressively.  The SRA doesn't load up when quickly spinning the quad around like the independent suspension tends to and is a top choice for those who race their quad.  It also serves as a great utility quad platform where hauling and pulling heavy loads is the ATV's primary purpose.  It is a bit less forgiving on the trail, but defiantly has its advantages.  Less moving parts involved in this setup, which means less to tear up.  The solid rear axle just makes the atv fun to ride.  Unfortunately the SRA is being phased out on the big bore sport utility quads and to own one you'll have to buy used.

Independent rear suspension has been around for some time now in the ATV industry and has became quite popular with folks.  If trail riding is you're primary use for the quad, independent rear suspension offers a superior ride quality.  Unlike the SRA, independent rear suspension allows each rear tire to react independently to the terrain.  Most all independent rear suspensions incorporate a sway bar that lightly mimics the characteristics of the SRA and allows sportier more aggressive cornering, but not near the solid feel of the SRA.  Independent rear suspension setups will cost more when purchasing your quad, but after a 50 mile trail ride you'll be glad you paid a bit more.  More moving parts to tear up in this setup, but manufactures continue to improve on their designs.

Having put many miles on both setups I can say that both get the job done.  It will really boil down to what your major purpose for the ATV will be.  If your in the market for a big bore atv you're only choice will likely be the (i) rear suspension setup.Watch SRA ATV in Action