Bachmann's recently released blue Peak 45114 is not supplied with the air reservoir tanks which should be fitted below the battery boxes. All class
45/1s carried these throughout their working lives after conversion to dual braking.
Ironically Bachmann have fitted these air tanks to their green Peak models, none of which should have them as far as I can ascertain.
I believe that Bachmann are to source the missing air reservoir mouldings from their Chinese factory, but it may take a little time. Contact your retailer if you've bought one and want the missing parts.