What's been changed:
Fixed Franco Max script scale for 13" & 14" rims.
How to install:
Extract the contend of this .rar inside your 3DS Max folder
How get correct scale for 13" and 14":
Use custom size button
Other credits:
Franco - for original Max script
BigBoss93 - for updating original script
Difference between old scale and new scale:

Archived external download: Download (external link)
Archived from VStanced • Modding Tools • 2017-06-14