Hi Spenser999,
It depends more on your stand over height and comfort on bicycles. The Moscow 27.5" has a stand over height of 29-30". We do recommend that your inseam be 1-2" longer than the stand over height. That way, should you lose your balance, your feet touch the ground before another part of your body makes contact with the frame (ouch!). If you are very comfortable on bikes however, you have a bit more leeway. Using the pedals as a platform creates a point of contact and leaning to the left or right reduces the distance to the ground.