New trekking bike for men 5.6" (1.76cm)

So many questions still.... 

It seems like you really just need a basic bike to get about on, a Dutch bike style would be grand.

Take a look at these https://www.decathlon.co.uk/C-780581-leisure-bikes

Decathlon are huge, they supply affordable decent stuff in the main. I personally would not buy an unknown bike/brand from Amazon. Decathlon have shops all over Europe, you should be able to try one instore.

That or buy second hand, google is your friend in your local. 

I'm a bit of a fan of the old postal bikes used, quality made and being sold off as refurbished for £250 - https://elephantbike.co.uk/ 

Best of luck, ta taa!

The one you've linked to looks like a womens bike to me, they make a mens version in the same range.

https://www.amazon.co.uk/Ortler-Lindau-Trekking-black-Bicycle/dp/B019H7H...

Good news is that it's a 'cheap bike' but that's about all it's got going for it for my eyes.

What are you looking to use it for specifically?

You might be better of on a single speed if it's city riding, or one without all the panniers and stuff on it if you're looking at occasional use.

I'd take a look at the Specialized Sequoia, well regarded by friends

http://www.specializedconceptstore.co.uk/product/5646/2017-sequoia/