There's been a lot of discussion about not using tubes, these wheels are the composite type not the snowflake .
From what I can remember the composite wheels were used on the first examples of the K series bikes an they were tubeless from the factory .
I don't know if this is true or not, but I've seen this countless times in print .
I had tires replaced on my '84 LS shortly after I got it, it's since turned into a parts bike not the original intention when I bought it .
I questioned the shop that replaced the tires why there was no charge for tubes, I was told that it didn't have tubes when the tires were removed .
I've had the rear wheel/tire from the '84 LS on my '81 R65 for 6 years now no issues, tire doesn't lose as much air as the front that has tubes .
I'm going to order the tires next week and talk to the owner of the shop about this, I've also heard and seen problems with the composite wheel and the valve stems on inner tubes not being long enough, can't get a nut to secure the valve stem and place the valve cap on the valve stem .
So to answer your question ( finally
), I'm leaning toward going tubeless .
Here's a link to Snowbum's BMW tech site .https://bmwmotorcycletech.info/section6.htm
The wheel section is lengthy to say the least !!
The composite wheels are not mentioned in this article .