Bill Stevenson wrote:Don,
I don't want to get into an argument with you about this, but I do want anyone who might be reading our discussion to think it through before mounting a 20 inch Cee Bailey windscreen on the BMW tall bracket like you have done. Notwithstanding your 10,000 miles experience, the fact remains that the BMW tall windscreen bracket is not as strong as the one BMW offers with the R1150R tall screen, which is similar in size to the 20 inch Cee Bailey screen. This is a clear signal to me that the BMW tall bracket for the R1200R would be heavily taxed and at the very least the safety margin built into it is being used up by the larger screen.
Indeed people should think it through. I did. And I watch mine and see no sign of failure (I'm not sure where you feel the failure would occur - I'm an ex-engineer, now keyboard jock.) The experience I've had, and from what I've seen from others using this shield - is no failures. I suspect there are quite a number of people using the Cee-Bailey screen by now, and I haven't heard of a single mount failure.
BTW - I just took a look at the REALOEM drawing of the R1150R screen mount:
http://www.realoem.com/bmw/showparts.do ... g=46&fg=55
It appears very similar in design and mounting to the bike to the R12R mount, with the exception the R12R mount has a forward lower bar - reinforced - that mounts down to the front of the bike:
http://www.realoem.com/bmw/showparts.do ... g=46&fg=55
Just looking at the drawings of the two, I don't see where the R1150R one is particularly stronger looking, but I'm sure I'm missing something. I'm curious why you feel one is stronger than the other - from an engineering point of view (don't be afraid to be technical.. I have enough background to probably not get too lost..)
We all ride differently. You might be a less aggressive rider than another who could have problems with the weaker bracket.
No argument, but food for thought - the "internet amplifier" (multiple forum reports of ANY failure followed by extensive cross-quoting between forums, see rear-drive and EWS failures for examples) would seem to have turned up any weakness in the CeeBailey 20" on the factory shield mount by now.
I'm sure there are more agressive riders then me using them and I haven't heard of
any failures.. might be a matter of time - perhaps with 100,000 miles instead of 10,000 miles. YMMV. So I tell people what *I* do or what *my* experience has been - not what they should do.
If we could convince ChiTown to use a Cee-Bailey for 10k miles I think we'd have a real acid test of durability.
The most important thing is to have fun.
Bill
No argument. I'm having a great deal of fun with the Roadster..
Keep the rubber side down..
EDIT - one thought occurred to me.. I do have the factory mount that came with the MRA VarioShield. The VarioShield all the way up is roughly 19.5" tall. Due to the two piece construction it is also a bit heavier than the Cee-Bailey 20" shield. The mount that MRA provides relies on single bolt-fastened pivot points that appear to me to be less secure than the factory BMW tall-shield mount. Just a data point. I haven't tried these mounts because I wanted to use it with the Touring mount from BMW. The MRA mount probably is just fine - it does have TUV approval which for me - counts for something.