[Petrichor]

See title. Bike is an MC19 with MC22 front forks. It looks like there's supposed to be a cotter pin in the hole in the front axle but I'm not sure.

 

[Dannoxyz]

No cotter because there's no nut to retain.
That's so you can put pin/screwdriver in it to hold steady while spinning other side.

 

[Petrichor]

Perfect, cheers man.