Cycle Gear is the best shop in Las Vegas for accessories, gear, and parts. The next best option will always be online sites, but with Cycle Gear they have people to talk to about your needs and inventory so you can see it first hand.
They are the only shop in Las Vegas that carries Dainese, high quality riding gear.
The staff is awesome! A few years ago I wanted to get a pair of Dainese Rossi Replica Boots. I went into the store and James had to try and track them down as they were a limited release. He found out they didn't have any more left, but still took the initiative to dig a little deeper. He asked for my info and the size I was looking for, I left and a while later he called to say that he did find one pair of the size I needed, it was at a warehouse location, but it wasn't in the system (which is why he said they didn't have any more). I told him I definitely wanted them and he had them shipped to the store, I picked them up a few days later.