I would say S. I am 5'6", riding a S but was previously riding a M, not much difference between the two other than the c. 2cm longer top tube. Was able to run 175 on the M and avoid toe overlap. 165 cranks on a S might help prevent toe overlap but never tried it before.
I would say S. I am 5'6", riding a S but was previously riding a M, not much difference between the two other than the c. 2cm longer top tube. Was able to run 175 on the M and avoid toe overlap. 165 cranks on a S might help prevent toe overlap but never tried it before.