What's the Middle Number in Tire Size

I've got about 52k miles on my car and I know that in the very near future i'll need to consider completely replacing all 4 of my tires.  I'm actually a little worried that one of the tires has a slight cupping effect, but that's a story for another day. I guess no one really cares about slight cupping when they'll be replaced within the next few months.

In any event, that lead me to look at the tread on my ATV tires and see what kind of potential life span they have left.  This post will help you understand more about tire sizes and understand which ones fit your vehicle, you'll also get an idea for how different tires sizes affect the riding of your ATV.  If you are looking for a comprehensive guide on tires, in general, then you can check out my previous post.

ATV Tire Sizes Explained

How to understand the measurements of your tires has to be one of the most frequently asked questions about ATVs in general, it probably gets asked more often than how to purchase the right ATV (extremely important by the way).

So how are tire sizes displayed?

They come in a set of three individual numbers like the image below:

First number : represents the height of the tire when it's properly inflated.  The unit of measurement is in inches.

Second number : represents the width of the tire when it's properly inflated.  The unit of measurement is in inches.

Third number : represents the diameter of the rim this tire will fit.  The unit of measure is in inches

Below are the tire sizes for all makes, models and years.  This chart also includes corresponding bolt patterns and sizes.

ARCTIC CAT OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
250 2WD/4WD, 99-07 (F) 23x8x12 12x7; 4/115
250 2WD/4WD, 99-07 (R) 24x9x12 12x7; 4/115
250 2WD/4WD, 07-08 (F) 22x7x10 10X5; 4/110
250 2WD/4WD, 07-08 (R) 22x10x10 10X8; 4/110
DVX 250 2WD/4WD, 07-08 (R) 22x7x10 10x5; 4/144
DVX 250 2WD/4WD, 07-08 (R) 20x11x9 9x9; 4/110
DVX 300 2WD, 09-12 (F) 21x7x10 10x5; 4/144
DVX 300 2WD, 09-12 (R) 20x11x9 9x9; 4/110
300 2WD, 98-03 (F) 23x8x12 12x7; 4/115
300 4WD, 98-00 (F) 24x9x12 12x7; 4/115
300 4WD, 01 (F) 23x8x12 12x7; 4/115
300 2WD/4WD, 98-00 (R) 25x10x12 12x7; 4/115
300 2WD/4WD, 01 (R) 23x10x12 12x7; 4/115
300 4WD, 02-03 (F) 24x9x12 12x7; 4/115
300 2WD/4WD, 02-03 (R) 25x10x12 12x7; 4/115
366 2WD/4WD, 07-08 (F) 24x8x12 12x7; 4/115
366 2WD/4WD, 07-08 (R) 24x10x12 12x7; 4/115
400i 2WD/4WD, 02-08 (F) IRS * 25x8x12 12x7; 4/115
400i 2WD/4WD, 02-08 (R) IRS * 25x11x12 12x7; 4/115
DVX 400 2WD, 04-08 (F) 22x7x10 10x5; 4/144
DVX 400 2WD, 04-08 (R) 20x11x9 9x9; 4/110
450i 4WD, 11-13 (F) IRS * 25x8x12 12x7; 4/115
450i 4WD, 11-13 (F) IRS * 25x10x12 12x7; 4/115
500i 4WD, 02-13 (F) IRS * 25x8x12 12x7; 4/115
500i 4WD, 02-13 (R) IRS * 25x11x12 12x7; 4/115
650i 4WD, 04-13 (F) IRS * 26x8x12 12x7; 4/115
650i 4WD, 04-13 (R) IRS * 26x11x12 12x7; 4/115
700i 4WD, 07-12 (F) IRS * 26x8x12 12x7; 4/115
700i 4WD, 07-13 (R) IRS * 26x11x12 12x7; 4/115
1000 Thundercat 4WD, 08-13 (F) IRS * 26x8x12 12x7; 4/115
1000 Thundercat 4WD, 08-13 (R) IRS * 26x11x12 12x7; 4/115
Prowler, 06-16 (F) 26x9x14 14x6; 4/115
Prowler, 06-16 (R) 26x11x14 14x8; 4/115
Wildcat 4WD, 12-16 (F) 26x9x14 14x6; 4/115
Wildcat 4WD, 12-16(R) 26x11x14 14x8; 4/115
CAN-AM / BOMBARDIER OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
Outlander 330, 03-10 (F) 25x8x12 12x7; 4/137
Outlander 330, 03-10 (R) 25x10x12 12x7; 4/137
Outlander 400, 03-16 (F) 25x8x12 12x7; 4/137
Outlander 400, 03-16 (R) 25x10x12 12x7; 4/137
Outlander 500, 07-16 (F) 26x8x12 12x7; 4/137
Outlander 500, 07-16 (R) 26x11x12 12x7; 4/137
Outlander 650, 06-16 (F) 26x8x12 12x7; 4/137
Outlander 650, 06-16 (R) 26x11x12 12x7; 4/137
Outlander 800, 06-16 (F) 26x8x12 12x7; 4/137
Outlander 800, 06-16 (R) 26x11x12 12x7; 4/137
Outlander 1000, 12-16 (F) 26x8x12 12x7; 4/137
Outlander 1000, 12-16 (R) 26x11x12 12x7; 4/137
Traxter 500 4WD, 99-05 (F) 25x8x12 12x7; 4/110
Traxter 500 4WD, 99-05 (R) 25x10x12 12x7; 4/110
Quest 500 4WD, 00-05 (F) 25x8x12 12x7; 4/110
Quest 500 4WD, 00-05 (R) 25x10x12 12x7; 4/110
Quest 650 4WD, 00-05 (F) 25x8x12 12x7; 4/110
Quest 650 4WD, 00-05 (R) 25x10x12 12x7; 4/110
DS 450, 07-15 (F) 21x7x10 10x5; 4/144
DS 450, 07-15 (R) 20x10x9 9x9; 4/110
DS 650, 00-07 (F) 21x7x10 10x5; 4/143
DS 650, 00-07 (R) 20x11x9 9x9; 4/143
Renegade 500 / 800, 07-13 (F) 25x8x12 12x7; 4/137
Renegade 500 / 800, 07-13 (R) 25x10x12 12x7; 4/137
Renegade 1000, 12-16 (F) 25x8x12 (X XC) 30x9x14 (X MR) 12x7; 4/137 14x7; 4/137
Renegade 1000, 12-16 (R) 25x10x12 (X XC) 30x11x14 (X MR) 12x7; 4/137 14x7; 4/137
Commander 800 / 1000, 11-16 (F) 27x9x12 12x7; 4/137
Commander 800 / 1000, 11-16 (R) 27x11x12 12x7; 4/137
Maverick 1000, 13-16 (F) 27x9x12 12x7; 4/137
Maverick 1000, 13-16 (R) 27x11x12 12x7; 4/137
HONDA OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
TRX 70, 86-87 (F) 16x8x7 7x6; 4/110
TRX 70, 86-87 (R) 16x8x7 7x6; 3/100
TRX 90, 93-03 (F) 20x7x8 8x5.5; 4/85
TRX 90, 93-03 (R) 19x8x8 8x6.5; 4/85
ATC 90/110, Thru 81 (R) 22x11x8 8x8; 3/100
ATC 110/125/125M, 82-87 (R) 22x11x8 8x8; 4/130
TRX 125, 87-88 (F) 20x7x8 8x6; 4/85
TRX 125, 85-88 (R) 22x10x8 8x8; 4/130
ATC 185S, Thru 81 (R) 22x11x8 8x8; 3/100
ATC 185S, 82-84 (R) 22x11x8 8x8; 4/130
ATC 185/200/Big Red, 80-84 (R) 25x12x9 9x9; 4/150
ATC 200S, 84/85 (R) 22x11x8 8x8; 4/130
ATC 200M, Thru 85 (R) 25x12x9 9x9; 4/150
ATC 200X, 83-85 (R) 22x11x8 8x8; 4/110
ATC 200X, 86-87 (R) 22x10x9 9x9; 4/110
TRX 200, 90-93, 96-97 (F) 21x7x10 10x5; 4/110
TRX 200, 90-93, 96-97 (R) 22x10x8 8x8; 4/110
TRX 200, 84 (R) 25x12x9 9x9; 4/150
TRX 200SX, 86-88 (R) 22x11x8 8x8; 4/110
ATC 250 Big Red, 85 (R) 25x12x9 9x9; 4/110
TRX 250 Big Red, 86-87 (F) 21x7x10 10x5; 4/110
TRX 250 Big Red, 85-87 (R) 25x12x9 9x9; 4/110
ATC 250SX, 85-87 (R) 22x11x8 8x9; 4/110
ATC 250R, 81 (R) 22x11x8 8x8; 3/100
ATC 250R, 82 (R) 22x11x8 8x8; 4/130
ATC 250R, 83-84 (R) 22x11x8 8x8; 4/110
ATC 250R, 85-86 (R) 20x10x9 9x9; 4/110
TRX 250R, 86-89 (F) 22x7x10 10x5; 4/144
TRX 250R, 86-89 (R) 20x10x9 9x9; 4/110
TRX 250X, 86-87 (F) 22x7x10 10x5; 4/110
TRX 250X, 88, 90-92 (F) 22x7x10 10x5; 4/144
TRX 250X, 86-92 (R) 20x10x9 9x9; 4/110
TRX 250 RECON, 97-09 (F) 22x7x11 11x7; 4/110
TRX 250 RECON, 97-09 (R) 22x10x9 9x9; 4/110
TRX 250EX, 00-09 (F) 22x7x10 10x5; 4/144
TRX 250EX, 00-09 (R) 22x10x9 9x9; 4/110
TRX 300EX, 93-09 (F) 22x7x10 10x5; 4/144
TRX 300EX, 93-09 (R) 20x10x9 9x9; 4/110
ATC 350X, 85-86 (R) 22x11x9 9x9; 4/110
TRX 300 2WD, 88-92 (F) 23x8x11 11x7; 4/110
TRX 300 2WD, 93-00 (F) 23x8x11 11x7; 4/110
TRX 300 2WD, 88-00 (R) 25x12x9 (also 24x9x11) 9x9; 4/110
TRX 300 4WD, 88-00 (F) 23x8x11 11x7; 4/110
TRX 300 4WD, 88-00 (R) 24x9x11 11x7; 4/110
TRX 350 4WD, 86-92 (F) 24x9x11 11x7; 4/110
TRX 350 4WD, 86-92 (R) 24x9x11 11x7; 4/110
TRX 350 RANCHER S-ES 2WD 00-09 (F) 24x8x12 12x7; 4/110
TRX 350 RANCHER S-ES 2WD 00-09 (R) 25x11x10 10x8; 4/110
TRX 350 RANCHER S-ES 4WD 00-09 (F) 24x8x12 12x7; 4/110
TRX 350 RANCHER S-ES 4WD 00-09 (R) 24x9x11 11x7; 4/110
TRX 400/420 RANCHER AT 4WD, 04-09 (F) 24x8x12 12x7; 4/110
TRX 400/420 RANCHER AT 4WD, 04-09 (R) 24x10x11 11x7; 4/110
TRX 420 RANCHER AT 4WD, 2009 (F) IRS* 24x8x12 12x7; 4/110
TRX 420 RANCHER AT 4WD, 2009 (R) IRS* 24x10x11 11x7; 4/110
TRX 400EX, 99-09 (F) 22x7x10 10x5; 4/144
TRX 400EX, 99-09 (R) 20x10x9 9x9; 4/110
TRX 400 FOREMAN 4WD, 96-06 (F) 24x8x11 11x7; 4/110
TRX 400 FOREMAN 4WD, 96-06 (R) 24x10x11 11x7; 4/110
TRX 450 FOREMAN S-ES 4WD, 98-04 (F) 25x8x12 12x7; 4/110
TRX 450 FOREMAN S-ES 4WD, 98-04 (R) 25x10x12 12x7; 4/110
TRX 500 FOREMAN S-ES 4WD, 05-16 (F) 25x8x12 12x7; 4/110
TRX 500 FOREMAN S-ES 4WD, 05-16 (R) 25x10x12 12x7; 4/110
TRX 450R 2WD, 04-09 (F) 22x7x10 10x5; 4/144
TRX 450R 2WD, 04-09 (R) 20x10x9 9x9; 4/110
TRX 500 RUBICON 4WD, 01-16(F) 25x8x12 12x7; 4/110
TRX 500 RUBICON 4WD, 01-16 (R) 25x10x12 12x7; 4/110
TRX 650 RINCON, 03-07 (F)+ 25x8x12 12x7; 4/110
TRX 650 RINCON, 03-07 (R)+ 25x10x12 12x7; 4/110
TRX 680 RINCON, 06-16 (F) IRS *+ 25x8x12 12x7; 4/110
TRX 680 RINCON, 06-16 (R) IRS *+ 25x10x12 12x7; 4/110
TRX 700XX, 08-09 (F) 21x7x10 10x5; 4/144
TRX 700XX, 08-09 (R) 22x9x11 11x7; 4/144
ODYSSEY, 77-81 (F) 20x7x8 8x5; 3/100
ODYSSEY, 77-81 (R) 22x11x8 8x8; 3/100
ODYSSEY, 82-84 (R) 22x11x8 8x8; 4/130
ODYSSEY, 85-86 (F) 21x7x10 10x5; 4/110
ODYSSEY, 85-86 (R) 24x11x10 10x8; 4/130
PILOT, 89-90 (F) 21x7x10 10x5; 4/110
PILOT, 89-90 (R) 24x11x10 10x8; 4/130
Big Red MUV700, '09-'13 (F) 25x8x12 12x7; 4/110 - 12mm x 1.50 studs
Big Red MUV700, '09-13 (R) 25x10x12 12x7; 4/110 - 12mm x 1.50 studs
Pioneer 700, All (F) 25x8x12 12x7; 4/110 - 12mm x 1.50 studs
Pioneer 700, All (R) 25x10x12 12x7; 4/110 - 12mm x 1.50 studs
Pioneer 1000, All (F) 25x8x12 12x7; 4/137 - 12mm x 1.50 studs
Pioneer 1000, All (R) 25x8x12 12x7; 4/137 - 12mm x 1.50 studs
KAWASAKI OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
220 Bayou, 88-02 (F) 22x8x9 9x6 4/110
220 Bayou, 88-02 (R) 22x10x10 10x8; 4/137
KLT 250, 82-85 (R) 25x12x9 9x9; 4/4
KXT 250 Tecate, 84 (R) 22x11x10 10x8; 4/4
KXT 250 Tecate, 85-87 (R) 22x11x10 10x8; 4/156
KXT 250 Tecate-4, 87-88 (F) 21x7x10 10x5; 4/156
KXT 250 Tecate-4, 87-88 (R) 22x11x10 10x8; 4/156
KSF 250 Mojave, 87-06 (F) 21x7x10 10x5; 4/156
KSF 250 Mojave, 87-06 (R) 22x11x10 10x8; 4/156
250 Bayou 2WD, 03-12 (F) 21x8x9 9x6; 4/110
250 Bayou 2WD, 03-12 (R) 22x10x10 10x8; 4/137
300 Bayou 300 2WD, 85-05 (F) 22x9x10 10x6; 4/137
300 Bayou 300 2WD, 85-05 (R) 24x11x10 10x8; 4/137
300B Lakota 300B, 95-00 (F) 22x8x10 10x5; 4/156
300B Lakota 300B, 95-00 (R) 22x11x10 10x8; 4/156
Bayou 300 4WD, 89-05 (F) 24x8x11 11x6; 4/137
Bayou 300 4WD, 89-05 (R) 24x10x11 11x7; 4/137
Brute Force 300, 2012 (F) 4/144
Brute Force 300, 2012 (R) 4/110
Prairie 300 2WD/4WD, 99-05 (F) 25x8x12 12x7; 4/137
Prairie 300 2WD/4WD, 99-05 (R) 25x11x10 10x8; 4/137
Prairie 360 2WD/4WD, 03-12 (F) 25x8x12 12x7; 4/137
Prairie 360 2WD/4WD, 03-12 (R) 25x10x12 12x7; 4/137
Prairie 400 2WD/4WD, 97-05 (F) 25x8x12 12x7; 4/137
Prairie 400 2WD/4WD, 97-05 (R) 25x12x10 10x8; 4/137
KLF 400 Bayou 4WD, 93-05 (F) 24x8x11 11x6; 4/137
KLF 400 Bayou 4WD, 93-05 (R) 24x10x11 11x7; 4/137
KFX 400 2WD, 03-05 (F) 22x7x10 10x5; 4/144
KFX 400 2WD, 03-05 (R) 20x10x9 9x9; 4/110
KFX 450R 2WD, 08-12 (F) 22x7x10 10x5; 4/144
KFX 450R 2WD, 08-12 (R) 20x10x9 9x9; 4/110
Prairie 650/700 4WD, 02-06 (F) 25x8x12 12x7; 4/137
Prairie 650/700 4WD, 02-06 (R) 25x10x12 12x7; 4/137
Brute Force 650 4WD, 03-12 (F) 25x8x12 12x7; 4/137
Brute Force 650 4WD, 03-12 (R) 25x10x12 12x7; 4/137
Brute Force 650i 4WD, 06-12 (F) IRS * 25x8x12 12x7; 4/110
Brute Force 650i 4WD, 06-12 (R) IRS * 25x10x12 12x7; 4/110
Brute Force 750i 4WD, 05-07 (F) IRS * 25x8x12 12x7; 4/110
Brute Force 750i 4WD, 05-07 (R) IRS * 25x10x12 12x7; 4/110
Brute Force 750i 4WD, 08-16 (F) IRS * 25x8x12 12x7; 4/110
Brute Force 750i 4WD, 08-16 (R) IRS * 25x10x12 12x7; 4/110
KFX 700 2WD, 03-10 (F) 22x7x10 10x5; 4/144
KFX 700 2WD, 03-10 (R) 22x11x10 10x8; 4/137
Mule 500 (F) - 10mm studs 22x9x10 10x7; 4/137
Mule 500 (R) - 10mm studs 22x11x10 10x8; 4/137
Mule 600 (F) - 10mm studs 22x9x10 10x7; 4/137
Mule 600 (R) - 10mm studs 22x11x10 10x8; 4/137
Mule 1000/2500 (F&R) - 12mm studs 22x11x10 10x8; 4/137 - 12mm x 1.25 studs
Mule 3000/3010/4010 (F&R) - 12mm studs 23x11x10 10x8; 4/137 - 12mm x 1.25 studs
Mule Pro-FXT, 15-16 (F) 12x7 4/156 - 12mm x 1.25 studs
POLARIS OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
Magnum 325 2x4/4x4, 00-02 (R) 24x11x10 10x8; 4/156
Xpedition 325 4x4, 00-02(F) 24x8x12 12x7; 4/156
Xpedition 325 4x4, 00-02 (R) 24x11x10 10x8; 4/4
Sportsman 335 4x4, 99-00 (F) 23x7x10 10x5; 4/156
Sportsman 335 4x4, 99-00 (R) 24x11x10 10x8; 4/156
Trail Boss 4x4 350L/400L, 90-94 (F) 25x8x12 12x7; 4/156
Trail Boss 4x4 350L/400L, 90-94 (R) 25x12x10 10x8; 4/4
Magnum 4x4 425L, 95-98 (F) 25x8x12 12x7; 4/156
Magnum 4x4 425L, 95-98 (R) 25x11x10 10x8; 4/4
Sportsman 400, 01-08 (F) 25x8x12 12x7; 4/156
Sportsman 400, 01-08 (R) 25x11x10 10x8; 4/156
Magnum 2x4/Xpress 300/400L, 96-99 (F) 23x7x10 10x5; 4/156
Magnum 2x4/Xpress 300/400L, 96-99 (R) 24x11x10 10x8; 4/4
Xplorer 4x4 400L, 95-02 (F) 25x8x12 12x7; 4/156
Xplorer 4x4 400L, 95-02 (R) 25x12x10 10x8; 4/4
Scrambler 2x4/4x4 400L, 95-02 (F) 23x7x10 10x5; 4/156
Scrambler 2x4/4x4 400L, 95-02 (R) 22x11x10 10x8; 4/4
Sport 400L 2x4, 94-99 (F) 23x7x10 10x5; 4/156
Sport 400L 2x4, 94-99 (R) 22x11x10 10x8; 4/4
Xpedition 425 4x4, 00-01 (F) 25x8x12 12x7; 4/156
Xpedition 425 4x4, 00-01 (R) 25x11x10 10x8; 4/4
Xpedition 425, 4x4, 2002 (R) 25x11x12 12x7; 4/156
Sportsman 500 4x4, 96-08 (F) 25x8x12 12x7; 4/156
Sportsman 500 4x4, 96-08 (R) 25x11x10 10x8; 4/156
Magnum 500 4x4, 99-01 (F) 25x8x12 12x7; 4/156
Magnum 500 4x4, 99-01 (R) 25x11x10 10x8; 4/4
Magnum 500 2x4, 2002 (R) 25x11x10 10x8; 4/156
Scrambler 500 2x4/4x4, 97-09 (F) 23x7x10 10x5; 4/156
Scrambler 500 2x4/4x4, 97-09 (R) 22x11x10 10x8; 4/4
Predator 500 2x4, 03-07 (F) 21x7x10 10x5; 4/156
Predator 500 2x4, 2003 Only (R) 20x11x10 10x8; 4/156
Predator 500 2x4, 04-07 (R) 20x11x10 10x8; 4/110
Outlaw 450/525, 08-09 (F) Straight-Axle 21x7x10 10x5; 4/156
Outlaw 450/525, 08-09 (R) Straight-Axle 20x11x9 9x9; 4/110
Outlaw 500/525, 07-09 (F) IRS 21x7x10 10x5; 4/156
Outlaw 500/525, 07-09 (R) IRS 20x11x9 9x9; 4/110
Sportsman 600 4x4, 03-13 (F) 25x8x12 12x7; 4/156
Sportsman 600 4x4, 03-13 (R) 25x11x12 12x7; 4/156
Sportsman 700 4x4, 02-13 (F) 25x8x12 12x7; 4/156
Sportsman 700 4x4, 02-13 (R) 25x10x12 12x7; 4/156
Sportsman 800 4x4, 05-13 (F) 26x8x12 12x7; 4/156
Sportsman 800 4x4, 05-13 (R) 26x10x12 12x7; 4/156
Sportsman XP 550/850/1000, 09-15 (F) 26x8x14 14x6; 4/156
Sportsman XP 550/850/1000, 09-15 (F) 26x10x14 14x8; 4/156
Diesel 4x4, 99-06 (F) 25x8x12 12x7; 4/156
Diesel 4x4, 99-06 (R) 25x11x10 10x8; 4/156
Big Boss 4x6, 89-94 (F) 22x8x10 10x5; 4/156
Big Boss 4x6, 89-94 (R) 22x11x10 10x8; 4/4
Big Boss 400L 6x6, 95-97 (F) 25x8x12 12x7; 4/156
Big Boss 400L 6x6, 95-97 (R) 25x11x10 10x8; 4/4
Magnum 425 2x4 & 4x4, 95-98 (F) 25x8x12 12x7; 4/156
Magnum 425 2x4 & 4x4, 95-98 (R) 25x11x10 10x8; 4/4
Magnum 425 6x6, 96-97 (F) 25x8x12 12x7; 4/156
Magnum 425 6x6, 96-97 (R) 25x11x10 10x8; 4/4
Ranger 400, 4x4, 10-14 (F) 25x8x12 12x7; 4/156
Ranger 400, 4x4, 10-14 (R) 25x11x12 12x7; 4/156
Ranger, 98-03 (F) 25x10x12 12x7; 4/156
Ranger, 98-03 (R) 25x11x10 10x8; 4/156
Ranger, 04-14 (F) 25x10x12 12x7; 4/156
Ranger, 04-14 (R) 25x11x12 12x7; 4/156
Ranger XP 900, 13-15 (F) 26x9x12 12x7; 4/156 - 12mm x 1.50 studs
Ranger XP 900, 13-15 (R) 26x11x12 12x7; 4/156 - 12mm x 1.50 studs
RZR 170 (F) 19x7x8 8x5; 4/110 - 10mm x 1.25 Studs
RZR 170 (R) 20x10x9 9x8; 4/110 - 10mm x 1.25 studs
RZR 570 / 800, 08-14 (F) 25x8x12 12x7; 4/156
RZR 570 / 800, 08-14 (R) 25x10x12 12x7; 4/156
RZR 800-S, 09-14 (F) 27x9x12 12x7; 4/156
RZR 800-S, 09-14 (R) 27x11x12 12x7; 4/156
RZR XP 900, 11-14 (F) 27x9x12 12x7; 4/156 3/8x24 Studs
RZR XP 900, 11-14 (R) 27x11x12 12x7; 4/156 3/8x24 Studs
RZR 900 (All), 2015 (F) 27x9x12 4/156 12mm x 1.50 Studs
RZR 900 (All), 2015 (R) 27x11x12 4/156 12mm x 1.50 Studs
RZR XP 1000, 13-18 (F) 29x9x14 14x6 4/156 5+1 12mm x 1.50 Studs
RZR XP 1000, 13-18 (R) 29x11x14 14x8 4/156 6+2 12mm x 1.50 Studs
General 1000, 16-18 (F) 27x9x14 14x6 4/156 5+1 12mm x 1.50 Studs
General 1000, 16-18 (R) 27x11x14 14x8 4/156 6+2 12mm x 1.50 Studs
SUZUKI OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
LT 50, 86-87 (F&R) 145/70-60 6x6; 3/90
LT 80 Quadsport, 87-05 (F) 19x7x8 8x6; 3/120
LT 80 Quadsport, 87-05 (R) 19x7x8 8x6; 3/120
LT/ALT 125, 83 (R) 22x11x8 8x8; 3/100
LT/ALT 125F, 84-87 (R) 22x11x8 8x8; 4/130
LT 160 Quadrunner, 89-02 (F) 20x7x8 8x6; 4/112
LT 160 Quadrunner, 89-02 (R) 22x10x8 8x8; 4/112
LT 185 Quadrunner, 83 (R) 22x11x8 8x8; 4/130
LT/ALT 185, 84-87 (R) 22x11x8 8x8; 4/130
LT 230 GEG Quadrunner, 85-86 (R) 22x11x8 8x8; 4/130
LT 230 GEF Quadrunner, 85-87 (R) 22x11x9 9x9; 4/130
LT 230 EH/EJ/EK Quadrunner, 87 (R) 22x11x9 9x9; 4/130
LT 230 EH/EJ/EK, 87-89, 91-93 (F) 21x7x10 10x5; 4/166
LT 230 EH/EJ/EK, 88-89, 91-93 (R) 22x11x9 9x9; 5/130
LT 230 QuadSport, 85-88 (F) 21x7x10 10x5; 4/166
LT 230 QuadSport, 85-88 (R) 22x11x9 9x9; 4/130
LT 250 QuadSport, 89-90 (F) 21x7x10 10x5; 4/166
LT 250 QuadSport, 89-90 (R) 22x11x9 9x9; 4/130
LT 250F Quadrunner, 89-02 (F) 22x8x10 10x5; 4/140
LT 250F Quadrunner, 89-02 (R) 24x11x10 10x8; 4/140
LT 250E/F/G Quadrunner, 84-86 (R) 22x11x9 9x9; 4/130
LT 300 E Quadrunner, 87-90 (F) 21x8x9 9x6; 4/130
LT 300 EH Quadrunner, 87-88 (R) 25x12x9 9x9; 4/130
LT 300 EJ Quadrunner, 89-90 (R) 25x12x9 9x9; 5/130
LT 250R QuadRacer, 85-92 (F) 21x7x10 10x5; 4/166
LT 250R QuadRacer, 85-86 (R) 22x11x10 10x8; 4/130
LT 250R QuadRacer, 87-92 (R) 22x10x10 10x8; 5/130
LT 250 4WD, 88-02(F) 22x8x10 10x5; 4/140
LT 250 4WD, 88-02 (R) 24x11x10 10x8; 4/140
Z250 2WD, 02-08 (F) 22x7x10 10x5; 4/144
Z250 2WD, 02-08 (R) 20x10x9 9x9; 4/110
OZARK 250 2WD, 02-08 (F) 22x7x11 11x7; 4/110
OZARK 250 2WD, 02-08 (R) 22x10x9 9x9; 4/110
LT 300 4WD XM King Quad, 91-03 (F) 24x8x11 11x6; 4/140
LT 300 4WD XM King Quad, 91-03 (R) 25x10x12 12x7; 5/160
Eiger 400, 2WD, 02-04 (F) 25x8x12 12x7; 4/110
Eiger 400, 2WD, 02-04 (R) 25x10x12 12x7; 4/110
Eiger 400 Auto 2WD, 02-04 (F) 25x8x12 12x7; 4/110
Eiger 400 Auto 2WD, 02-04 (R) 25x10x12 12x7; 4/110
Eiger 400 4WD, 02-07 (F) 25x8x12 12x7; 4/110
Eiger 400 4WD, 02-07 (R) 25x10x12 12x7; 4/110
Eiger 400 Auto 4WD, 02-07 (F) 25x8x12 12x7; 4/110
Eiger 400 Auto 4WD, 02-07 (R) 25x10x12 12x7; 4/110
Z250/400 2WD, 02-07 (F) 22x7x10 10x5; 4/144
Z250/400 2WD, 02-07 (R) 20x10x9 9x9; 4/110
King Quad 400 4x4, 08-16 (F) 25x8x12 12x7; 4/110
King Quad 400 4x4, 08-16 (R) 25x12x12 12x7; 4/110
LTR-450 2WD, 06-08 (F) 20x6x10 10x5; 4/144
LTR-450 2WD, 06-08 (R) 18x10x8 8x8; 4/110
King Quad 450 4x4, 07-10 (F) IRS * 25x8x12 12x7; 4/110
King Quad 450 4x4, 07-10 (R) IRS * 25x10x12 12x7; 4/110
King Quad 500, 09, 11-16 (F) IRS * 25x8x12 12x7; 4/110
King Quad 500, 09, 11-16 (R) IRS * 25x10x12 12x7; 4/110
LT 500R QuadRacer, 87-90 (F) 21x7x10 10x5; 4/166
LT 500R QuadRacer, 87-90 (R) 22x11x10 10x8; 5/130
LT-F/LT-A 500 Quadrunner, 98-02 (F) 25x8x12 12x7; 4/90
LT-F/LT-A 500 Quadrunner, 98-02 (R) 25x10x12 12x8; 4/90
Vinson 500 4x4, 03-07 (F) 25x8x12 12x7; 4/110
Vinson 500 4x4, 03-07 (R) 25x10x12 12x7; 4/110
Twin Peaks 700 4x4, 04-05 (F) 25x8x12 12x7; 4/137
Twin Peaks 700 4x4, 04-05 (R) 25x10x12 12x7; 4/137
King Quad 700 4x4, 05-07 (F) IRS * 25x8x12 12x7; 4/110
King Quad 700 4x4, 05-07 (R) IRS * 25x10x12 12x7; 4/110
King Quad 750 4x4, 08, 09-16 (F) IRS * 25x8x12 12x7; 4/110
King Quad 750 4x4, 08, 09-16 (R) IRS * 25x10x12 12x7; 4/110
YAMAHA OEM TIRE SIZE OEM WHEEL SIZE; BOLT PATTERN(MM)
YF 60 Zinger, All years (F&R) 15x7x6 6x6; 3/70
YFM 80E Badger, 93-04 (F) 18x7x7 7x6; N/A
YFM 80E Badger, 93-04 (R) 18x8x7 7x6; N/A
YFM 80 Moto-4, 87-92 (R) 19x8x7 7x6; 3/70
Grizzly 80, 06-08 (F) 18x7x7 7x6; 4/88
Grizzly 80, 06-08 (R) 18x8x8 8x8; 3/90
YFM 100T Moto-4, 87-90 (R) 20x9x8 8x8; 4/100
YFA 125 Breeze, 89-04 (F) 20x7x8 8x7; 4/85
YFA 125 Breeze, 89-04 (R) 22x10x8 8x8; 4/85
Grizzly 125 Breeze, 05-09 (F) 20x7x8 8x7; 4/85
Grizzly 125 Breeze, 05-09 (R) 22x10x8 8x8; 4/85
YT 125/175 Tri-Moto, 81-85 (R) 22x11x8 8x8; 3/100
YTM 200 E/L/R Tri-Moto, 83/86 (R) 25x12x9 9x10; 4/125
YTM 200 DX, 88-90 (F) 22x8x10 10x5; 4/156
YTM 200 DX, 88-90 (R) 22x11x8 8x8; 4/100
YSF 200 Blaster, 88-07 (F) 21x7x10 10x5; 4/156
YSF 200 Blaster, 88-07 (R) 21x10x8 8x8; 4/100
YTM 225 DX/DR Tri-Moto (R) 22x11x8 8x8; 3/100
YFM 225 Moto-4, 85-87 (F) 22x8x10 10x5; 4/156
YFM 225 Moto-4, 85-87 (R) 25x12x9 9x9; 4/125
YFM 250 Moto-4, 89 (F) 22x8x10 10x6; 4/110
YFM 250 Moto-4, 89 (R) 25x12x9 9x9; 4/110
YFB 250 Timberwolf 2x4, 92-94 (F) 22x7x10 10x5; 4/156
YFB 250 Timberwolf 2x4, 95-98 (F) 22x7x10 10x5; 4/110
YFB 250 Timberwolf 2x4, 92-98 (R) 22x11x10 10x8; 4/110
Bear Tracker 250, 99-05 (F) 22x7x10 10x5; 4/110
Bear Tracker 250, 99-05 (R) 22x10x10 10x8; 4/110
Big Bear 250, 06-09 (F) 22x7x10 10x5; 4/110
Big Bear 250, 06-09 (R) 22x10x10 10x8; 4/110
YFB 250 Timberwolf 4x4, 95-05 (F) 23x8x10 10x5; 4/110
YFB 250 Timberwolf 4x4, 95-05 (R) 23x10x10 10x8; 4/110
Bruin 250, 05 (F) 22x7x10 10x5; 4/110
Bruin 250, 05 (R) 22x10x10 10x8; 4/110
YTZ 250 Tri-Z, 85 (R) 22x11x8 8x8; 4/100
YTZ 250 Tri-Z, 86 (R) 22x11x9 9x8; 4/100
250 Raptor, 08 (F) 20x7x10 10x5; 4/156
250 Raptor, 08 (R) 19x10x9 9x9; 4/115
YFM 350 XT Warrior, 87-05 (F) 22x7x10 10x5; 4/156
YFM 350 XT Warrior, 87-05 (R) 22x10x9 9x9; 4/115
YFM 350/450 Wolverine, 95-08 (F) 23x8x12 12x7; 4/110
YFM 350/450 Wolverine, 95-08 (R) 23x10x12 12x7; 4/110
YFZ 350 T Banshee, 87-06 (F) 21x7x10 10x5; 4/156
YFZ 350 T Banshee, 87-88, 91-06 (R) 22x10x9 9x9; 4/115
YFZ 350 T Banshee, 89-90 (R) 22x11x10 10x8; 4/156
YFM 350 ER Moto-4, 87-88 (F) 22x8x10 10x5; 4/156
YFM 350 ER Moto-4, 89-95 (F) 22x8x10 10x5; 4/110
YFM 350 ER Moto-4, 87-92 (R) 25x12x9 9x9; 4/125
YFM 350 ER Moto-4, 93-95 (R) 25x12x9 9x9; 4/110
350 Big Bear 2WD, 96-05 (F) 25x8x12 12x7; 4/110
350 Big Bear 2WD, 96-99 (R) 25x12x9 9x9; 4/110
350 Big Bear 2WD, 00-05 (R) 23x10x10 10x8; 4/110
350/400 Big Bear 4WD, 87-06 (F) 25x8x12 12x7; 4/110
350/400 Big Bear 4WD, 87-06 (R) 25x10x12 12x7; 4/110
350 Big Bear 4WD, 07-08 (F) Straight-Axle 25x8x12 12x7; 4/110
350 Big Bear 4WD, 07-08 (R) Straight-Axle 25x10x12 12x7; 4/110
350/450 Grizzly 4WD, 07-13 (F) IRS * 25x8x12 12x7; 4/110
350/450 Grizzly 4WD, 07-13 (R) IRS * 25x10x12 12x7; 4/110
YFM 350 Bruin 4WD, 04-06 (F) 25x8x12 12x7; 4/110
YFM 350 Bruin 4WD, 04-06 (R) 25x10x12 12x7; 4/110
YFM 350 Raptor, 04-12 (F) 22x7x10 10x5; 4/156
YFM 350 Raptor, 04-12 (R) 20x10x9 9x9; 4/115
400 Big Bear 4WD, 07-13 (F) IRS * 25x8x12 12x7; 4/110
400 Big Bear 4WD, 07-13 (R) IRS * 25x10x12 12x7; 4/110
YFM 400/450 Kodiak 2WD, 93-04 (F) 25x8x12 12x7; 4/110
YFM 400/450 Kodiak 2WD, 93-04 (R) 25x10x12 12x7; 4/110
YFM 400/450 Kodiak 4WD, 93-04 (F) 25x8x12 12x7; 4/110
YFM 400/450 Kodiak 4WD, 93-04 (R) 25x10x12 12x7; 4/110
YFM 400/450 Kodiak 4WD, 05-06 (F) IRS * 25x8x12 12x7; 4/110
YFM 400/450 Kodiak 4WD, 05-06 (R) IRS * 25x10x12 12x7; 4/110
YFZ 450 2WD, 04-12 (F) 21x7x10 10x5; 4/156
YFZ 450 2WD, 04-12 (R) 20x10x9 9x9; 4/115
YFM 550 Grizzly 4WD, 09-12 (F) IRS * 25x8x12 12x7; 4/110
YFM 550 Grizzly 4WD, 09-12 (R) IRS * 25x10x12 12x7; 4/110
YFM 600 Grizzly 4WD, 98 (F) 25x8x12 12x7; 4/110
YFM 600 Grizzly 4WD, 98 (R) 25x10x10 10x8; 4/110
YFM 600 Grizzly 4WD, 99-01 (F) 25x8x12 12x7; 4/110
YFM 600 Grizzly 4WD, 99-00 (R) 25x10x12 12x7; 4/110
YFM 600 Grizzly 4WD, 01 (R) 25x10x10 10x8;4/110
YFM 660/700R Raptor 2WD, 01-10 (F) 21x7x10 10x5; 4/156
YFM 660/700R Raptor 2WD, 01-10 (R) 20x10x9 9x8; 4/115
YFM 660 Grizzly 4WD, 02-10 (F) IRS * 25x8x12 12x7; 4/110
YFM 660 Grizzly 4WD, 02-10 (R) IRS * 25x10x12 12x7; 4/110
YFM 700 Grizzly 4WD, 07-16 (F) IRS * 25x8x12 12x7; 4/110
YFM 700 Grizzly 4WD, 07-16 (R) IRS * 25x10x12 12x7; 4/110
YFM 450/660/700 Rhino 4WD, 04-14 (F) IRS * 25x8x12 12x7; 4/110
YFM 450/660/700 Rhino 4WD, 04-14 (R) IRS * 25x10x12 12x7; 4/110
700 Viking, '14-'16 (F) IRS * 25x8x12 12x7; 4/110 - 12mm x 1.25 studs
700 Viking, '14-'16 (R) IRS * 25x10x12 12x7; 4/110 - 12mm x 1.25 studs

Tire Sizes and Bolt Patterns for Your Particular ATV

The bolt pattern of your tire is not universal, but it can be narrowed down to three of the most common patterns which are the 3 Lug, the 4 Lug and 5 Lug – each one designed to look just like it sounds.

The 3 Lug can be best described by imagining a virtual circle in the middle of the tire and drawing a radius that extends out and around the center of that virtual circle.  The center of the three lugs will pass directly through the radius that was drawn. See picture above for a visual.

An example measurement of a 3 Lug is 3/100.  The three stands for "3 Lugs" and the 100 stands for the radius, in millimeters (mm), from the center virtual circle.

The 4 Lug follows the same concept as the name implies by utilizing 4 Lugs and uses the virtual circle in the middle.  The 4 lugs are layed out around the virtual circle in a square shape and the center of the two lug holes directly across from each other pass through the center of the virtual circle.  See picture above for visual.

An example measurement of a 4 Lug is 4/115 where the four stands for "4 Lugs" and the 115 stands for the distance between the center of the two lugs directly across from each other, in millimeters (mm).  The line between the two lugs will also pass through the center of the virtual circle.

The 5 Lug can be a bit difficult to describe in words but i'll do my best.  Following the same pattern, there are 5 Lugs that get used in this pattern, each one placed around the virtual circle.  Imagine a line that is tangentially touching the virtual circle but goes from the back of one lug directly to the center of the lug across from it.  See the picture above for the best visual.

An example measurement of a 5 Lug is 5/130 where the five stands for "5 Lugs" and the 130 stands for the distance, in millimeters (mm), between one lug and another directly across from it.

Putting Bigger Tires on Your ATV

It's easy to go out on the trails and get envious of the guys with the monstrous tires that are super meaty and look like they can climb straight up a wall with a 90 degree slope, but before you go out and buy those same tires thinking you can do the same as they can, you'll want to make sure your ATV can handle the same amount of stress that comes with larger tires.

The larger tires with the extremely pronounced grooves are great for getting through mud and other viscous terrain, but think of the amount of energy it takes for you to swim through that.  It takes a lot!

It will also take that much more energy for your ATV to push through that.  On top of that, your ATV will also need to be able to handle the added weight and height of your tires, which are usually a lot more than the standard stock tires.

So what are some parts you'll eventually have to upgrade?

Gearing Down – The taller your tire is, the higher the gear ratio will become.  Larger tires take more effort to move one complete rotation than a smaller tire does.  For those two reasons, you will lose low end torque and gain higher end speed.

This translates into lower acceleration from a stand still but much higher speeds as your ATV gains momentum.

In other words, you'll have to decide on what's more important to you, faster acceleration from a complete stop or a higher end top speed.

If acceleration is your answer, you'll want to consider changing your sprockets for a lower gear ratio (gearing down)

Current gear ratio:so how do you know what to gear down to if you don't know where you're currently at?  Calculating gear ratio is pretty simple – sprockets (the gear looking things attached to your drive chain) are measured by the number of teeth they have.

You'll just divide the rear sprocket size by the front sprocket size to calculate your gear ratio.  So as an example, my rear sprocket has 47 teeth and my front sprocket has 14. My gear ratio is 2.64.  Below is a chart to easily calculate your gear ratio.

chart for gear ratios

So again, if acceleration is more important to you than top end speed, you'll just have to purchase a smaller sprocket for the rear, or a larger sprocket for the front.

Pretty straightforward, right?

Drivetrain & Suspension – these components that come stock with your ATV just aren't built to handle the added stress that comes with rotating those larger tires as quickly as you'll need them to.  These parts will quickly become stressed and will lead to failure much faster than anticipated.

You'll want to be proactive about replacing them with heavy duty axles, CV joints, shocks and other parts associated with the drivetrain and suspension.  The worst time to replace these parts are when you've fried them from extreme overuse.

When To Replace Your Tires

Replacing your ATV tires isn't always the easiest thing to gauge, it's not like changing out the street tires on your car where they wear very evenly.  ATV tires need to be manually checked as it's very uncommon to have the tread worn down to almost bald. The easiest and sometimes only way of telling if you should get new tires is by looking at the tread.  If the tread is rounded out on the edges is most places, then it's time for a new set. I'd recommend replacing them all at the same time instead of one at a time.

What's the Middle Number in Tire Size

Source: https://atvfreedom.com/tire-size-guide/

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