With the wide acceptance of the new Pro-CC rear suspension on the Indy XC models, we also find the Velocity shocks now on the new RMK Khaos and Indy XCR models for 2020. This makes us believe that Polaris will be coming with even more models, at least during Snow Check, that can be ordered with Velocity Series shocks.
What makes them so special? First found on the Polaris race sleds, they relocate the piggyback reservoir to a lower position on the shock body. This creates more of a zonal damping profile, in that for the first part of shock compression some of the fluid is bleeding off into the reservoir. Once the IFP passes the position of the reservoir mid-stroke, the shock damping becomes much firmer. This in effect gives us a position sensitive damping curve – initially softer, then firmer. But, here’s the twist – the high pressure gas charge is in on the other side of the internal floating piston, so now that pressure pushes on the compression valving making it hard to overcome and able to better resist the big hits. Kind of the best of both worlds.
For this reason, we look forward to the 2021 model line with anticipation. In fact, we’re not going to wait as we have been working towards using the popular Velocity Series shock absorbers on our Switchback Assault sleds to broaden their suspension compliance. We have already obtained a complete set of four Velocity Series XCR shocks to be installed onto a Switchback Assault. This set of four should soon be available directly from Polaris as an accessory package, so owners of previous model year Switchback Assault sleds can make the upgrade.
For owners of these sleds just looking to improve the ride comfort of the rear suspension, there have already been riders who have installed the rear shock from the Indy XC onto their Switchback Assault and experienced impressive gains in ride compliance. This is not only from the shock valving itself, but from the bypass design of the Velocity Series that allows for the softer initial damping with great bottoming to resistance at the end of the stroke.
This means we have two options for the Switchback Assault – going with the XCR calibration Velocity Series (all four) or going with the more compliant INDY XC calibration Velocity Series (rear track shock). We’re going to try both of them!
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