OEM UTV Roll Bar Tube Diameters:

POLARIS

Pro 2 seat and 4 seat 2.0″

Turbo S 1.75″
XP1000 AND XP4 1000 1.75”
XP Turbo and XP4 Turbo 1.75”
RZR 900 2015 and up 1.75”
2014 and older RZR’s Perimeter 1.75”
2014 and older Polaris Ranger and RZR and RZR S and XP Rear Harness Bar and Rear Bumper crossbars 1.5” (4 seat versions have a 1.25” rear top crossbar as well)

General (Pro Fit cage NOT ROUND use PF-OUT & PF-IN clamps)1.75” top crossbar only (rearview mount)
Ranger (Pro Fit cage NOT ROUND use PF-OUT & PF-IN clamps)1.75” rear harness bar only
Ranger Crew (Pro Fit cage NOT ROUND use PF-OUT & PF-IN clamps) Use 9” Bolt On mirror for rearview

Polaris RZR 170 1.25″

YAMAHA
YXZ 1000 1.75″ Perimeter Top crossbars 1.5”
Rhino Perimeter 1.75” Top Crossbars 1.5”
Rhino Steering column 1.5”
Viking and Viking  6 seater  2.0”
Wolverine Perimeter 2.0” Top Crossbars 1.5”

KAWASAKI
Kawasaki Teryx / Teryx 4 Perimeter 1.875” Top Crossbars 1.7”

HONDA

Talon 2.0″
Pioneer 1000 1.75”
Pioneer 700 1.625”
Pioneer  500 1.625”
Big Red 1.625”

ARCTIC CAT

XX 1.75″
Wildcat / Wildcat 4 1.75″
Prowler (must have aftermarket cage installed)

CANAM

Maverick X3 Perimeter 2 seat and 4 seat 1.85″

Maverick X3 Some top crossbars are 1.5″

Maverick X3 Rear harness bar 2.5″

Maverick Sport X XRC (Pro Fit cage NOT ROUND use PF-OUT & PF-IN)1.85” on all other round tubes on cage. 1.5″ on bumpers

Maverick Trail (Profile cage NOT ROUND use PF-OUT & PF-IN)1.85” on all other round tubes on cage. 1.5″ on bumpers

Commander 2.0”