K100 4 valve question

[Lone Amigo]

Does the 4 valve head motor appear in the models with the monolever rear of my '85 K100.

There is a '91 for sale in ABQ that is called a K100. It has the half fairing, but no lowers. But I cannot tell which rear end is on the bike.

Any notes or comments?

[Lone Amigo]

Bump:

The bike in question is a '91 K100RS, with the 16 valve motor and ABS.

What rear end does this bike use, that is, is it the same suspension as my '85 K1oo?

[Scott_]

Are you asking if the rear drive is the same? no. The '91 will be a paralever rear drive. According the BMW parts fiche.