What is the difference when trying to read these two types of tire sizes?

33X12.5RR16.5 (32.6") vs 285/75RR16 (32.8")

Will the first fit the Moabs?

_________________
===
New KJ Gear - Desert Armor Flak

2004 Renegade Light Khaki - 4" JBA Lift - Rock Lizard Products: Komodo Dragon Rear Bumper, Prototype Winch-mount Front Bumper, Super Skink Sliders - All J's Super Tranny Skid II - 31" Firestone Destination AT's on Moab wheels - Cobra 75W CB w/ stock Antenna mod

[b]Retired, US Military

16.5 inch radius will NOT fit a 16 inch rim, the difference is measurement system, US vs. metric

_________________
2006 TJ Rubicon
OME ZJ/LJ - JKS BL - MORE MML
Khaki 6 speed

Standard tire size---33x12.50R16.5 = 33" tall,12.50" section width,"R" is radial tire,and 16.5 is the rim diameter.

Metric tire sizes----285/75R16 = 285 is the tread width in MM,75 is the sidewall height given in a % of the tread width(75% of 285mm),"R" is radial tire,and 16 is the rim diameter.


So no the first tire you listed will not work on your 16" MOAB's.