The RZR F-18 iShocks are the result of numerous tests utilizing experienced iShock technicians, data acquisition, and a shock dyno. The result is an extremely competitive shock designed specifically for the Polaris RZR offering greater performance and more travel than the competition.
In addition to externally adjustable spring pre-load and rebound damping controls, the F-18 models also benefit from a piggy back style reservoir and both high and low speed compression adjusters making it the most high performance RZR shock on the market; 5 way adjustable! As with all iShocks, the RZR F-18 is completely tunable, totally rebuildable, and backed by a lifetime warranty and a 100% satisfaction guarantee.
The Rear RZR iShocks also feature Dual rate springs featuring a "progressive rate" main.