I used this to mount an XS1 650 front drum brake on my SR500. The Motolanna bracket a beautifully machined piece. The slot the bracket fits into on the XS1 is narrower than on the SR500 drum brake. I had to cut and file the block on the bracket narrower to fit. The slot is also slightly deeper on the XS1 brake so the Motolanna bracket doesn't quite extend in all the way to the bottom of thew slot. I wish Motolanna made a bracket with a slightly narrower and taller block to fit the XS1 brake.