New to the world in 1994, the Oilhead was a revolutionary update to the trademark BMW boxer. R-Bikes, from R1100RS to the R1200GS Adventure, can be found here.
Launched in 1983, discussion of all BMW K-Bikes, from K75 to the new K1600GT, can be found here.
Discussion about the F650 Funduro and the The "Other" F650GS (the one missing a cylinder!) can be found in this forum.
Triumph, Ducati, and yes, even Harley Davidson. If the topic is another brand of motorcycle, it belongs here.