I've mounted them on both a Mark's rack and a Nitto mini-front. My methods were a bit kludgey and the aesthetics may displease the rando crowd but I can tell you they work fine.
For the mini-front I bolted the Supernova multimount to the hole in the front tab of the rack. That gives a great light position and I don't think water spray has been a problem because I have the long Berthoud fenders. It's also protected from bumps by the tyre. Photo here<http://flic.kr/p/bvSBMV>. The downside is that it's highly visible when the bike is parked and I'm a bit worried it will get lifted. On the Mark's I made a little mount by bending some stainless steel. It worked out a quite similar shape to the mount VO sells<http://store.velo-orange.com/index.php/accessories/lighting/dynamo/vo-rack-to-light-bracket.html> but obviously heavier (maybe stronger too?). If I'd known about the VO mount before I made it I probably would've just bought one of them. I attached the mount to the right hand rack stay by using a spare daruma bolt, or you can piggy-back it where the stay attaches to the rack (like in this photo<http://flic.kr/p/aDTmeD>). In this case the light is less visible and better protected under the basket, but you have to put up with a bit of tyre shadow. Good luck, I'd be interested to see some photos when you're done! -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/xXtHoX_a8NMJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.