The two sets I ordered arrived: I ordered two of set #1 because it was the only one available and I prefer the bikes in that set slightly over the others anyway. I think these are really fantastic models - very detailed - and yes, a bit too modern for my layout, but . . . I'll put them on the layout this afternoon anyway.
It is surprising how many bikes you can put on a layout and it doesn't seem enough: I have two sets of these Harleys that have been on the layout for a couple of years already, the three bikes that came with Woodland Scenics bike shop (these are great looking, and I moved two elsewhere), three of the small single cylinder bike that came with the Bachman "City People with Vehicle" figure set, and three Vespa scooters on the layout two. When the other MTH set comes out I will get one of those and with the Norev BMS below, have 30 on the layout - about one for every seven cars or so, which hopefully will look somewhat realistic.
A couple of weeks ago I stumbled upon this Norex BMW R60 which is quite nice, if expensive and not too far out of the right timeframe, either