The eight clamp options provided with the Quad Taillight - for different sizes or shapes of seat posts and seat stays - are similar to what I got a few years ago with my 300R. I've mounted the 300 on the seat stay or on the lowest exposed part of the seat post (after I found an accommodating seat bag). I don't use the "clip" mount; I use the four-screw mount so if I want to leave the 300 behind I would need to unscrew the seat post clamp.