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ST538
Premium All-Position

With its 26/32" tread depth on the standard sizes and the 10,200lbs. load carrying capacity on size 315/80R22.5, the ST538 is an outstanding performing On- and Off-Highway Mixed Service All-Position Tire.

S-Tech design
6 YEAR Warranty
  • 6 Years from Original Purchase Date*
  • 2 Recap Casing Warranty*
TIRE CONSTRUCTION
  1. Deeper tread depth increases mileage and time in service.
  2. Uniform tread depth and smotth block edges help prevent irregular wear
  3. Thick curbing ribs help shield the casing from sidewall damage.
  4. Stone ejectors protect the casing from damage in the base of the groove.
  5. Application specific tread compounds resist tread chipping in high-scuff on and off-road applications.
TIRE CONSTRUCTION
Tire Specifications
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TIRE SIZE
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Tire Specifications

  • SIZE 315/80R22.5
  • PLY RATING 20
  • SERVICE DESCRIPTION 161/157K
  • MAX SPEED 68
  • TREAD DEPTH 24
PRODUCT CODESUMI-5534002
TIRE SIZE315/80R22.5
SERVICE DESCRIPTION161/157K
LOAD RANGE/PLYL/20
PREF. RIM WIDTH (INCH)9.00
MIN. RIM WIDTH (INCH)9.00
SINGLE MAX LOAD (LBS.)10200
REVS PER MILE486
DUAL MAX LOAD (LBS.)9090
I.P. (PSI)130
OVERALL DIAMETER (INCH)42.7
SECTION WIDTH (INCH)12.2
MIN. DUAL SPACING (INCH)13.8
TREAD DEPTH (X/32")  24
STATIC LOADED RADIUS19.8
MAX SPEED (MPH)68

Tire Specifications

  • SIZE 11R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 148/145K
  • MAX SPEED 68
  • TREAD DEPTH 26
PRODUCT CODESUMI-5534000
TIRE SIZE11R22.5
SERVICE DESCRIPTION148/145K
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)8.25
MIN. RIM WIDTH (INCH)7.50
SINGLE MAX LOAD (LBS.)6940
REVS PER MILE494
DUAL MAX LOAD (LBS.)6395
I.P. (PSI)123
OVERALL DIAMETER (INCH)42.0
SECTION WIDTH (INCH)11.3
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  26
STATIC LOADED RADIUS19.5
MAX SPEED (MPH)68

Tire Specifications

  • SIZE 11R24.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 149/146K
  • MAX SPEED 68
  • TREAD DEPTH 26
PRODUCT CODESUMI-5534001
TIRE SIZE11R24.5
SERVICE DESCRIPTION149/146K
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)8.25
MIN. RIM WIDTH (INCH)7.50
SINGLE MAX LOAD (LBS.)7160
REVS PER MILE472
DUAL MAX LOAD (LBS.)6610
I.P. (PSI)120
OVERALL DIAMETER (INCH)44.0
SECTION WIDTH (INCH)11.4
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  26
STATIC LOADED RADIUS20.5
MAX SPEED (MPH)68

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*Exclusions apply. Click here for full warranty details.