As far as I'm concerned, this I'd the best tail bag made. It fits my Buell Cyclone perfectly, allowing me to take extended length trips as if I'd taken my ST1300 due to its large capacity. It held enough clothes for an entire week long rally, with an extra pair of boots, swim trunks and casual wear for the evenings. It's enough bag to support a couple on a weekend trip. So easy to mount and keep taut. I had 60 lbs of stuff in mine and had no problems. The expansions on the side help balance the contents and conform to the bike's tail to prevent shifting. This is the one bag that can do anything you need for trips. The quality is excellent, with tough nylon straps with quick disconnect buckles. Don't cut the length off the straps - use double sided Velcro to roll them up and double over the Velcro to keep them from unrolling. That way you can use them on any bike you want.