BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

Looks like there will be lots of 1200's on sale at dealerships and more on the used market.

http://translate.google.com/translate?p ... ry_state0=

The cylinder head keeps getting uglier with each incarnation.

IMBO, the best looking cylinder head was the first generation one, the oilhead, single spark, non magnesium, aluminum cylinder head like the one on the top righ hand corner of this page.

Hmmm....I'm a bit taken aback with the valve operation design as it apears that the cams have to come out to set the valve gap.....assuming I'm looking at it correctly.

Personally, I would have eliminated the followers (added complexity) and made it shim under bucket like the Japanese counterparts.....much easier to adjust.

Of course I'm not a BMW engineer.......

Might be sooner than you think.

In the UK, BMW are starting their run-out models with the introduction of both a GS1200SE and an R1200RT LE (the only RT showing on the BMW website) with just about every option available bolted on.
According to a dealer I spoke to last year, he was expecting an announcement at last years Munich or Milan show about a twin overhead cam engine similar to the HP versions but without the exotic materials. The "next" RT was supposed to be the first model to become available with the new engine/capacity (1300cc ?).

So RT owners get to be the chosen BMW R & D guinea pigs for the rest of us should be all sorted by 2018 if recent models are anything to go by

The clearance adjustment looks like they'd just pop off the circlip and slide out the rocker arm shaft to change the captive shim at the valvestem end of the rocker. It'll be nearly as easy as threaded adjusters, except for the fact you'll either need a small selection of shims (currently @ $5.79ea) -or- a trip to your nearest dealer.

Noteworthy in the pic below is that the valve axises are radial. Notice the camlobe surfaces aren't parallel to the shaft axis . . . they're tilted to align with the radial valve axises.

http://www2.solomoto30.com/fotos/45/R12 ... lteral.jpg

The other BMW's with this similar cam over end pivoting rocker valvetrain have 12K adjustment intervals and usually do not need any shims changed for the next few 12K checks. This newer radial splayed design with side loads on the cams and rockerarms may not have those attributes.

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Love the Google translation:

" to dispute its mouthwatering cake portion of the market."

This has been discussed as the likely transition since the HP motors came out. It helps spread the R+D costs of these motors from a very small application to the numbers represented by all the R bikes. It's also likely that BMW (along with the other OEM's) need's updated designs as they will continue to struggle with "air/oil cooled" motors meeting emission and noise standards while still providing customers with acceptable performance. I'm looking forward to see what they offer up.

Cheers

Bearing in mind the past model policy the R model was usually one of the last models of a new generation (the HP's are a totally different set). In Germany there have been speculations about a new generation appearing somewhen in late 2010 (speculation about a new R1250GS being the first to roll out). However BMW has denied such plans and said they will do some facelifting on the present generation and consider a new generation somewhen in 2012 ...

However this remains crystalball reading. I am pretty certain that works are being done on a new generation and I am also certain that new technology such as shown in the HP's will be implemented to some extent in a new generation. But when this will come only the oilhead-godfathers (technicians and designers) at the factory will know. And they will certainly not share this info with us in order not to hamper sales of the present generation.

Kind regards from Germany
Oliver