I broke down and ordered the new larger backrest for the Spyder from BRP. Installation of this accessory was the easiest so far as I have broken bolts on my other mods. Bracket fits into the frame inbetween the brake lights after you remove the back cover. Also have to remove the saddle bags and the saddlebag bracket on the left side to gain access underneath the seat. Then once installed the backrest fits right into the installed bracket and removes with a torx wrench supplied. A top cover then fits over the installed cover when you remove the back rest and everything is nice and clean for those times when you don't have a passenger. I was surprized at the size of the backrest. Definetly in larger than the older adjustable in years prior. It wraps around the side of your back so helps with more secure feeling for your passenger. Very nicely padded as well.