Yeah, there are four bolt-on parts (brackets) per side that are model-specific and come as a kit along with the plate that quick-release snaps onto them. The plate is available in Givi flavor, or the others, depending on your needs. The brackets might be order able separate. I lost one and they replaced it for $20. The whole kit runs a little over $200, so that plus cases gets into discretionary income territory. One of the main reasons I bought a bike was to do bike camping, so life without cases was never an option for me. I wanted hard cases so I could leave the safety gear secure and weather-proof and could travel a bit away from the bike if desired. But the whole setup was not cheap, and it's hard to find on sale. Somebody got a great deal on a set of E21s here a while back, but those wouldn't be quite big enough for me. Though I do often wish I had top-loaders. Twisted Throttle is the most informative site to look at, and if you call 'em they're real helpful. I called about the PLX SW Motech QR kit for the S1.