R-Motion X Rails - GEN4/GEN5 137" factory length

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These high strength 7000-series aluminum CNC rails are designed as a drop-in heavy duty replacement for your factory length 137 R-motion X equipped Ski-Doo snowmobile. They feature optimized cutouts, increased strength and a better approach angle to allow your sled to take anything you can throw at it. Available in stock 137" geometry and a 146" extended length for increased float and off-trail capability! Each kit comes as a pair of 2 rails, 2 hyfax, and a hardware kit with all necessary parts for installation. Show more