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ST778+ SE
Long Haul Steer

The ST778+ SE is a SMARTWAY-verified long-haul steer tire. Incorporating a collection of features, the ST778+ SE delivers superior miles to removal, excellent handling for safe operation and dependable retreadability of the Sumitomo casing.

S-Tech design Smartway tire
6 YEAR Warranty
  • 6 Years from Original Purchase Date*
  • 2 Recap Casing Warranty*
TIRE CONSTRUCTION
  1. Shoulder grooves work with the wide, flat tread radius to control irregular wear
  2. Wide solid shoulders evenly dispense contact pressure for long, even wear
  3. Micro sipes protect the interior ribs from punch wear
  4. Stone ejectors in the base of the tread groove promote casing integrity
  5. Four Steel Belt Package - resists punctures, increases vehicle stability and contributes to more retread cycles
TIRE CONSTRUCTION
Tire Specifications
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TIRE SIZE
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Tire Specifications

  • SIZE 11R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 146/143L
  • MAX SPEED 75
  • TREAD DEPTH 18
PRODUCT CODE5532852
TIRE SIZE11R22.5
SERVICE DESCRIPTION146/143L
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)8.25
MIN. RIM WIDTH (INCH)7.50
SINGLE MAX LOAD (LBS.)6610
REVS PER MILE501
DUAL MAX LOAD (LBS.)6005
I.P. (PSI)120
OVERALL DIAMETER (INCH)41.5
SECTION WIDTH (INCH)11.3
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  18
STATIC LOADED RADIUS19.3
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 11R24.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 149/146L
  • MAX SPEED 75
  • TREAD DEPTH 18
PRODUCT CODE5532859
TIRE SIZE11R24.5
SERVICE DESCRIPTION149/146L
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)8.25
MIN. RIM WIDTH (INCH)7.50
SINGLE MAX LOAD (LBS.)7160
REVS PER MILE481
DUAL MAX LOAD (LBS.)6610
I.P. (PSI)120
OVERALL DIAMETER (INCH)43.2
SECTION WIDTH (INCH)11.3
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  18
STATIC LOADED RADIUS20.2
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 295/75R22.5
  • PLY RATING 14
  • SERVICE DESCRIPTION 144/141L
  • MAX SPEED 75
  • TREAD DEPTH 18
PRODUCT CODE5532875
TIRE SIZE295/75R22.5
SERVICE DESCRIPTION144/141L
LOAD RANGE/PLYG/14
PREF. RIM WIDTH (INCH)9.00
MIN. RIM WIDTH (INCH)8.25
SINGLE MAX LOAD (LBS.)6175
REVS PER MILE518
DUAL MAX LOAD (LBS.)5675
I.P. (PSI)110
OVERALL DIAMETER (INCH)40.1
SECTION WIDTH (INCH)11.5
MIN. DUAL SPACING (INCH)13.2
TREAD DEPTH (X/32")  18
STATIC LOADED RADIUS18.8
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 285/75R24.5
  • PLY RATING 14
  • SERVICE DESCRIPTION 144/141L
  • MAX SPEED 75
  • TREAD DEPTH 18
PRODUCT CODE5532878
TIRE SIZE285/75R24.5
SERVICE DESCRIPTION144/141L
LOAD RANGE/PLYG/14
PREF. RIM WIDTH (INCH)8.25
MIN. RIM WIDTH (INCH)7.50
SINGLE MAX LOAD (LBS.)6175
REVS PER MILE503
DUAL MAX LOAD (LBS.)5675
I.P. (PSI)110
OVERALL DIAMETER (INCH)41.3
SECTION WIDTH (INCH)11.0
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  18
STATIC LOADED RADIUS19.4
MAX SPEED (MPH)75

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*Exclusions apply. Click here for full warranty details.