You already tried this on the UK Skate Forum and got laughed out of the room.
No one here will have any interest in this product. Honestly your best bet is to go on r/skateboarding or just approach a straight up sporting forum.
Your target audience is likely kids under 10, or people that blindly over accesorize when they try out a new hobby.
Long story short. It is a dumb idea.
I am just working on my thesis trying to gather information from the target group. You are acting like I am trying to force everybody to buy the product. I am asking if anybody in the community would like to help me because I do not have 300 skating friends all over the world. I do not have many options, I just want to graduate. I am also giving away many Bones Reds Bearings because I also want to make it worth to filling in the survey for example, it is not a huge price but it is something which I could give away in a high quantity.
I will also process your opinion in my thesis for example, not every response has to be positive you know, I just want to know what could be the best choice for the company I am currently doing my thesis for. Thank you for the tip to go on Reddit, I will try it, if you have any other ideas how I could receive many respons I would appreciate it.