Shown here is the R1 that requires drilling (2) holes in the frame where the outboard feet support the frame bracket. We machined this bracket precisely to fit and clear all the hurdles that made this kit a wait in the making, yet still giving good support for the frame bracket. We supply the drills and taps and the operation is relatively easy. Pictured instructions and all hardware included in the kit. The R1 is vastly improved from the addition of this kit.