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ST778+ SE
Long Haul Steer

The new ST788 SE is Sumitomo's most advanced S-Tech Design steer tire for long haul operations. With the latest design elements, the ST788 SE provides exceptional mileage with advanced compounding properties. For extended service life, the tire features robust shoulder elements to ensure long, even wear and stone ejectors to help promote casing integrity. Exceptional performance and low rolling resistance offer peace of mind and savings for fleets.

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 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 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 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.