The American Classic 350 wheels have a rider weight limit of 175 for the standard build 28/32 spoke wheelset.

Sprint 350 Wheelset
Regular Build * 24 Frt, 28 Rr28 Frt, 32 Rr * Up to 150 lbs.
Regular Build * 28 Frt, 32 Rr * Up to 175 lbs.
Heavy Duty Build * * Up to 200 lbs.

Road CR-420 Wheelset
Regular Build * 16 Frt, 20 Rr * Up to 150 lbs.
Regular Build * 18 Frt, 24 Rr * Up to 200 lbs.
Bladed Spoke Build * 16 Frt, 20 Rr * Up to 200 lbs.
Bladed Spoke Build * 18 Frt, 24 Rr * Up to 225 lbs.