So, I made a site for downloading SVG numbers

[Rangeraus]

This is excellent, thankyou.

As far as motorcycle racing fonts go, Tipemite italic or Tipemite oblique is probably the most instantly recognisable - I'm not sure if these are covered by copyright but it would be a cool addition if you're adding more fonts to this page!

 

[Gintonyx]

I found this font that makes excellent numbers for number plates:

Hemi Head Schriftart | dafont.com

Hemi Head Schriftart | dafont.com

www.dafont.com

Just the right thickness / boldness imho.