The nerf bars mount in the two open end tubes with expanding bolts. If you are using the allen head bolt right ahead of the rear tube for your door mount the nerf bar trim may have to be opened up for access.
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I have had my nerf bars on order since i purchased my Ace, they came in yesterday. It took me 7 minutes to install them, after reading the instruction sheet beforehand. Most times I just look at how something goes together before I even look at instructions, Instruction sheet said it would take 20 minutes to install, Its only 4 bolts! They seem like a very sturdy addition to the Ace, maybe it will help deflect some mud! I did lose 1 inch of ground clearance , I still have 10 inches measured from the center of the nerf bar. I have Maxxis Bighorn 26's on Factory Polaris 14's. Air pressure in your tires will vary height. I run 10lbs for the terrain i ride.
When I installed mine, I had a little trouble on the right side. The poly panel along the floor and side of the Ace that the nerf bar fits next to partially covered the front bolt hole. The panel has a round hole that the nerf bar bolt goes through to mount to the frame. The panel covered about 1/8" of the mounting hole. I had to loosen the torx screws that held the panel on and push the skin forward to uncover the hole. I never could get the bolt hole in the frame completely uncovered and had to tap the bolt into the hole with a hammer and the bolt deflected the panel a bit. It took a few minutes to get this bolt installed. As Luge says, they are very sturdy and I think they look great. The mounting bolts require a 17 mm socket. I hope that they deflect some of the floppy pine roots and briars that are still protruding from my trails. I am getting a small amount of damage to the black panels on bottom of my rear fenders. I am in the process of cutting the roots but at my age it is taking a while. I had much rather drive my Ace that cut roots.
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