Need help in identifying bike
Based on their website - they don't sell fatbikes.  The two models of full-squish bike are called &quot;wild cup&quot; and &quot;wild one&quot;
https://www.bullsbikesusa.com/wild-cup.html

But the images show &quot;normal&quot; sized tyres, and distinctively different top-mount for the shock.
So either its a model no-longer sold, it's from a different company with a similar name, or it is a knock-off.
Ask the giver for the paperwork so you can &quot;register the warranty&quot; and do enjoy your new bike.