Yes they are a substantial difference over stock if setup properly. The stock walkers are ok, if you want to settle for average OEM shocks. I effectively built a custom XCR in 2019 before they released the factory indy XCR in ‘20. Im located in Pennsylvania.
From Polaris Race Team:
The biggest improvement on these shocks over the standard WEs is the position of the piggyback resevoir. Mounted much lower on the shock body, the resevoir is now below the full travel of the shock piston. This allows the shock to have two very different performance ranges; plush for the first bit of travel to be compliant in the small chatter bumps but stiff once the piston has travelled past the resevoir orifice. Imagine a shock that can be set up soft for comfort and ease of powder carving but still has the ability to absorb the big hit from that drop you just pounded without bottoming
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