yup this is the ancient MRC/Tamiya (yes back when MRC was teamed up with Tamiya) Zundapp KS750 BMW R75 2 pack. I have no idea exactly how old it really is but it is definitely OOP but I guess it is rare and it smells old too. I got this on Ebay for $7.99 + $7.99 shipping which is definitely a good deal.
I’d have to agree with Roy…unless you picked those up as a collector’s item (and if they are rare and OOP you might be better off hanging on them for that purpose), the Lion Roar kits are far superior. They offer the two-pack as a bike-only option or you can get one with sidecar, both are priced the same.
They are interesting but something bothers me about that kit the tires are fine for a bike without a rider (having no figures with the kit makes one wonder) but if you do build it and add “riders” the tires they provide (which are excellent looking) lack the bulge of a weighted down bike. Now only if LR would release a R75 in the same quality. Now which company makes German WWII motorcycle riders?
Looking at both I think the best way of painting would be to build the wheels first paint the tires then seal with testors dull coat. Then mask and build the bike around the wheel assemblies then paint whatever color you wish.
The lionroar cycles should only be recommended to experienced and avid modelers. The finished products are of course light years ahead of the tamiya, but getting there isn’t cake walk. It’s not just a matter of working with small plastic and PE parts, but also a lot of modification and corrections on square and round tubular joints.