You might not be, I wrongly assumed that since Marin had picked a deprecated fork end they might have been a decade behind the times at the other end and you'd be hunting high and low for a straight-steerer replacement. As it is, the lower headset is 1.5" so you shouldn't have too much trouble finding a fork to fit.
Yes, because for a given horizontal force at the ground contact, the smaller wheel requires less brake torque. For the same reason, a larger rotor has less reaction for a given brake torque
https://diskbrakesqr.wordpress.com/
You might not be, I wrongly assumed that since Marin had picked a deprecated fork end they might have been a decade behind the times at the other end and you'd be hunting high and low for a straight-steerer replacement. As it is, the lower headset is 1.5" so you shouldn't have too much trouble finding a fork to fit.