I just bought 4 37" bfg km2 and they measure 36.6"s will they look smaller than the cooper stt's that i decided to not go with that measured 36.4"s? if they are the same width why does everyone say that the km2 will look smaller and it measures almost the same height? thanks

 

The Coopers are fatter and heavier (and slower).

Cooper Discoverer STT 37x12.50R17/D 124P
OA Diameter: 36.9
Revolutions per Mile: 563
Tread Width: 10.0
Section Width: 13.0
Tread Depth: 23/32
Weight: 83

BFG M-T T/A KM2 37x12.50R17/D 124Q
OA Diameter: 36.8
Revolutions per Mile: 566
Tread Width: 9.7
Section Width: 12.5
Tread Depth: 20/32
Weight: 70

But the diameter is virtually the same.

I like your choice!
But why not 5?

 

Who cares about small discrepancies in size...what do they ride like?

 

Did you measure after they were put on because my 37's measured only 35.5 when I measured for my procal. My friends coopers did measure almost 1 inch taller. It was a bummer too.

 

Good question

 

They get put on tm..I'll measure then. I spent more on four bfgs than 5 stt's (all they had was four) but to tell u the truth I was set on the stt's for the longest but then I just like the un-heaviness of the bfgs and I've had no problems and almost zero wear outa the stock bfgs after 18k miles. I don't rock crawl but ride these muddy field roads some. If im just real unhappy at the actual size I'll put up the $137 to ship back.

 

Can anyone help out with real world numbers on these km2 37s please list rim width, tires psi and 2 or 4 door. thank you.

 

Mine measure at 36" mounted with 30 psi on 17x9.5" Spyderlocks and on a 4 door JKUR

Mine next to one with the 35" KM2's

 

My KM2's didn't even make 36 mounted/installed//brand new, when measuring for the Procal

on ProComp 17's @30PSI

 

They are one of the lightest mud tires out there that are popular. This is also why measured size mounted is a bit larger of a change then a heavier tire. This will be even more noticed on smaller wheels with large tires as there is more sidewall showing and they are built lighter. This is the trade off you give up when buying these to save weight. Also dont be super surprised when you tear your sidewall on a rock or tree stump.