Rabaconda Street Tire Changer

[Grumpy Goat]

Yes it is. You need that, or, I think they have a universal single-sided-swingarm-wheel adapter that might work. 
You could call and ask them to add it to your existing order so you don't have to pay another shipping charge. They are very accommodating; it is worth a shot.
UPDATE: Having just had a quick look at the universal adapter, I don't think it will work for the BMW.
UPDATE2: Maybe it would; it specifies up to 68 mm, so might be fine for the RS (62 mm) but not for a K16 (72 mm). Ask them!

Thanks Michael. I called the number but got a voicemail so I emailed them asking whether the Universal Adapter could be included in the original order. Let see what they say. Worth a shot to save the US$12 shipping.