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ST909
Optimized Regional Drive

The new ST909 is Sumitomo's most advanced S-Tech Design drive tire for regional applications. With the latest design elements, the ST909 provides superior traction, more miles per 32nd and an extra-wide tread face for increased vehicle stability. Exceptional performance and outstanding retreadability are strengths of the line.

S-Tech design
6 YEAR Warranty
  • 6 Years from Original Purchase Date*
  • 2 Recap Casing Warranty*
TIRE CONSTRUCTION
  1. Significantly wider tread face for consistent retreadability, with wide, solid shoulders that evenly dispense contact pressure for long, even wear
  2. Advanced Y-Shape groove design improves stone ejection, traction and promotes longer life of the casing
  3. Deep shoulder blocks for increased traction
  4. Stone ejectors to minimize stone drilling and protect the casing
  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 295/75R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 146/143L
  • MAX SPEED 75
  • TREAD DEPTH 28
PRODUCT CODE5533075
TIRE SIZE295/75R22.5
SERVICE DESCRIPTION146/143L
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)9.00
MIN. RIM WIDTH (INCH)8.25
SINGLE MAX LOAD (LBS.)6610
REVS PER MILE511
DUAL MAX LOAD (LBS.)6005
I.P. (PSI)120
OVERALL DIAMETER (INCH)40.7
SECTION WIDTH (INCH)11.4
MIN. DUAL SPACING (INCH)13.2
TREAD DEPTH (X/32")  28
STATIC LOADED RADIUS19.0
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 11R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 146/143L
  • MAX SPEED 75
  • TREAD DEPTH 28
PRODUCT CODE5533052
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 MILE493
DUAL MAX LOAD (LBS.)6005
I.P. (PSI)120
OVERALL DIAMETER (INCH)42.1
SECTION WIDTH (INCH)11.1
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  28
STATIC LOADED RADIUS19.8
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 12R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 152/149L
  • MAX SPEED 75
  • TREAD DEPTH 28
PRODUCT CODE5533055
TIRE SIZE12R22.5
SERVICE DESCRIPTION152/149L
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)9.00
MIN. RIM WIDTH (INCH)8.25
SINGLE MAX LOAD (LBS.)7830
REVS PER MILE486
DUAL MAX LOAD (LBS.)7160
I.P. (PSI)123
OVERALL DIAMETER (INCH)43.0
SECTION WIDTH (INCH)12.0
MIN. DUAL SPACING (INCH)13.5
TREAD DEPTH (X/32")  28
STATIC LOADED RADIUS20.0
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 11R24.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 149/146L
  • MAX SPEED 75
  • TREAD DEPTH 28
PRODUCT CODE5533059
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 MILE490
DUAL MAX LOAD (LBS.)6610
I.P. (PSI)120
OVERALL DIAMETER (INCH)44.2
SECTION WIDTH (INCH)11.1
MIN. DUAL SPACING (INCH)12.5
TREAD DEPTH (X/32")  28
STATIC LOADED RADIUS20.7
MAX SPEED (MPH)75

Tire Specifications

  • SIZE 255/70R22.5
  • PLY RATING 16
  • SERVICE DESCRIPTION 140/137M
  • MAX SPEED 81
  • TREAD DEPTH 26
PRODUCT CODE5533087
TIRE SIZE255/70R22.5
SERVICE DESCRIPTION140/137M
LOAD RANGE/PLYH/16
PREF. RIM WIDTH (INCH)7.50
MIN. RIM WIDTH (INCH)6.75
SINGLE MAX LOAD (LBS.)5510
REVS PER MILE562
DUAL MAX LOAD (LBS.)5070
I.P. (PSI)120
OVERALL DIAMETER (INCH)36.9
SECTION WIDTH (INCH)9.9
MIN. DUAL SPACING (INCH)11.3
TREAD DEPTH (X/32")  26
STATIC LOADED RADIUS17.3
MAX SPEED (MPH)81

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*Exclusions apply. Click here for full warranty details.