Wheel diameter

A home owner from New Hampshire says:
August 7, 2010
Hello! Do I measure the wheel diameter at the bottom of the wheel groove, where the wheel rolls on the track, or on the outside rim of the wheel?
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 9, 2010
I believe all the wheels are measured by the outside diameter of the wheel, not the inside groove.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.