Specdog
XS400 Addict
When you see oddball tire sizes such as 3.60, 4.10, 4.60, 5.10 this is NOT their inch size. A 3.60 actually correlates to 3.00 in standard inch category and 80 in metric category.. These oddball tire sizes are in a category of their own called Low Profile Inch. I know, it's confusing.
https://www.denniskirk.com/help_center/tire-sizes.jsp#lowprofile
https://www.denniskirk.com/help_center/tire-sizes.jsp#lowprofile