My sled came with it installed but the center plastic on the tank below the fill is trimmed (a little rough looking), body plastic / tank seams are not up to Yamaha standards and the body work bolt holes in the plastics are elongated to reach the nuts built into the new tank. I have read here on a few threads about using ratchet straps and cum alongs to pull the tank into position so seems like tight is the norm, whether from expansion or heat not sure. All said, still great to have another four gallons in basically the same real estate. I carry a 1.5 gal tank on my rack for those longer rides between fills but happy w trail tank range all by itself. I will take some pics of mine next time out to trailer. I covered it all with a Yamaha tank bag so looks great!