Looking at this diagram from the Bridgestone website, what does FR and RR mean?

Front RadialReally? That's a stupid abbreviation for "rear".
Thanks for clarifying!
Front Radial
Rear Radial
Front Radial
Rear Radial
French Rider
Russian Rider
just a guess
tires (or tyres) are commonly referred to as radials. ever hear someone say "just slapped some new radials on"Don't see what "radial" has to do with that graph. I'm sticking to front and rear.
tires (or tyres) are commonly referred to as radials. ever hear someone say "just slapped some new radials on"
I wouldn't put too much faith in those graphs, they look like marketing gee-wizardry to me.
....ever hear someone say "just slapped some new radials on"