This is my first fixie bike ,it’s a crew district 2017 carbon fiber fork, aluminum frame 46 t

What’s the size of the rear cog? It looks big, but also looks like a single speed freewheel.

Edit to add that as your first fixed gear bike you should install a front brake, at least until you have an understanding of the bike’s dynamics.

Looks nice! How much experience do you have with clipless pedals? Don’t bmx racers use clipless now??