Decided to make a new Impact font for the game. Managed to make it work for 1-3 digits even! Enjoy
Comes in Black and White variant of course
https://www.mediafire.com/file/pbmqv3bwi1mzioi/Impact.zip/file
*Note: This will override Pay's Impact Font, sorry dude
Instructions: extract directly into install directory
Longer instructions: bike fonts go in ...Steam\steamapps\common\MX Bikes\misc\fonts folder