platty said:
Eric
Thanks so much for your various information posts and PM's. The more I read - the more the RumBux seems to be the correct option and I'm amazed that other manufacturers haven't taken a similar path. I plan to use the RumBux lower unit in conjunction with a set of Alt-Rider crash bars up top ::013::
One minor point that doesn't seem to have been addressed previously - I assume the flat plate material is powder coated aluminium attached with low profile bolts ..... but is it 3 or 4 mm thick ?
I am really looking forward to seeing some pictures of the various combinations that people intended to use with the Rumbux Lower, and hearing how these fit, if mods are needed, or if they just stack up nicely. On some of the upper bars I can see that the Rumbux may need to go on top of, or under the other bracket, but in every case I've looked into, it appears that there is no interference with the angles of the two different bar sets. I do hope that to be true. Some of these combos will be very, very cool looking and offer the protection that the owner wants, while giving them the look they prefer too. All of the lower only sets ship with spacers as well, just in case they are needed.
To answer your question, yes the flat skid plate material is powder coated aluminum. It is 3mm thick.
(note that current Rumbux kits ship with a 4.5mm thick aluminum skid plate as of 4/1/13) The way the plate spans and is supported by the crash bars, a thicker plate is a bit overkill. That said, at least one world traveler type had a stainless steel plate fabricated for his bike. That will add some weight, but for that type of journey, overkill is a good thing.
(
Note added 11/17/14 - Rumbux did some lab and real world destructive testing and found that there were not any advantages to stainless steel over 4.5mm thick aluminum until you got to the thickness level on the S/S that it became prohibitive to work with and added significant weight)