Single speed White Indust. G30 or M30 questions.
 

So looking to get rid of my old crank BB setup and trying to decide on the G30 or M30
I ride street and trails and im not out here mashing it out when I'm on the street either. leisurely riding from place to places unless its trail.

is there any benefits or cons to either the G30 or the M30?

why the G30

&

why the M30

I'm rocking a Nature Boy Zona 130mm rear.

Thanks.

AHHHHHH... NVM I see that the Gravel is for 68 and the Mountain is for 73 for mountain.

Yes, the crank arms are the same; only the spindle is different.

If you prefer a lower Q factor, I’m pretty sure that you could run the R30 on a CX frame. The Zona NB is a great bike and deserves good components. I have the NB 853 and love it.