For my Haibike Full FatSix frame, I'll wax it with a good car wax several times a year. After most every ride, I'll use an auto detailing spray from Griots Garage and wipe it off; trying to avoid hitting the brake rotors. If I do, a quick wipe down prevents any brake issues.
For the chain, I found a dry lubricant, either DuPont Chain Saver (formulated exclusively for motorcycle chains) or Finish Line Dry Lubricant with Teflon, works the best for me. BTW, both products are pretty much one and the same as DuPont licensed this product to Finish Line to manufacture. It drys to a wax-like coating that sheds dirt and grit very well. A wet oil on the chain will quickly gather dirt on the links.
All of these products are based out of the American market, but I'm sure an equivilant product can be found in your homeland. For the record, most everyone has their own favorite brand of chain lube that provides them with good service.
Best of luck with your H-Bike. I love my 2016 Full FatSix, still going as strong today as when I picked her up back then.