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Polaris RZR Chassis Ribs

New from All Terrain Research – Polaris RZR Chassis Ribs add strength to the rear of your chassis by bracing the sides of the chassis together with the existing factory holes and by also tying into the upper and lower A arm mounting points. The Chassis Ribs are CNC laser cut from 3/16″ steel plate. For the upper A arm mounts instead of simply welding a washer to a chopped tube like some manufactures may do ATR CNC machines a stair stepped end piece that centers itself inside the tube and provides us a gap for a flush TIG weld that evenly penetrates both pieces. Chassis Ribs come in a durable black powder coat finish.

ATR is a group of engineers, designers and motorsports enthusiasts set out to develop the most advanced off road vehicle performance products possible. Bringing years of experience ATR serves as a full service prototyping and manufacturing company developing products for some of today’s leading off road vehicle manufacturers. For more info they can be reached at 877-581-0041 or on the web at

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