Roadmaster

ROADMASTER® RM185™

  • Pick-up & Delivery
  • Regional
  • All Position
  • Steer Position
  • SmartWay Verified

The RM185™ is a regional all-position tire that is SmartWay verified for steer axle applications.

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Tire Features

Fuel-Efficient Compound

Tire design and rubber compounding help provide low rolling resistance and contribute to fuel efficiency, earning Smartway verification.

All-Position Tread Pattern

18/32' tread depth combined with solid shoulder ribs helps with regional haul and and pick-up and delivery service.

Micro Sipes

Micro sipes help provide enhanced traction in wet road conditions and resists abnormal or 'river wear.'

High Tensile Strength Four-Belt Package

The high tensile strength four-belt package helps provide casing durability and retreadability.

Warranties & Guarantees

2023 Commercial Replacement Tire Guide, Limited Warranty & Registration Booklet For Cooper® & Roadmaster® Tires

DOWNLOAD PDF WARRANTY

Tire Specifications
Tire Specifications

Full Specs

DOWNLOAD TIRE SPECIFICATIONS
Load Range
Tire Size
  • Tire Size 11R24.5
  • Static Loaded Radius 0 in/ 0 mm
  • Load Range H
  • Tread Depth 18 / 14 mm
  • Revs 477 mile/ 296 km
  • Max Speed 75 mph/ 47 kmh
  • Tire Weight 123.8 lbs/ 56.2 kgs
  • Approved Rim Width 7.5-8.25 in
  • Single Max Load 7160 lbs/ 3247.7 kgs
  • Overall Diameter 0 in/ 0 mm
  • Single Inflation Pressure 120 psi/ 827 kpa
  • Overall Width 11 in/ 279 mm
  • Dual Max Load 6610 lbs/ 2998.2 kgs
  • Overall Width Loaded 11 in/ 279 mm
  • Dual Inflation Pressure 120 psi/ 827 kpa