Rama gothic medium semibold? http://myfonts.us/td-DjcCEz

I'm not sure that's it, the 'S' is slightly different but it's very close, thanks!

I'm not 100% with rama gothic though, because the G and 'R' leg seems different.

I know what you mean, it's closer than other ones I've compared it to.

Knockout.

Brilliant, thanks Jan!