Roadmaster

ROADMASTER® RM830 EM

  • Regional
  • All Position
  • Steer Position
  • SmartWay Verified

The RM830 ™ is a regional all-position SmartWay verified tire for long miles to removal.

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Tire Features

High Tensile Strength Four-Belt Package

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

Energy Max Fuel-Efficient Compound

The tire’s tread design and rubber compounding helps provide low rolling resistance and contributes to fuel efficiency, earning SmartWay verification.

5-Rib Tread Design

Chevron-shaped ribs help provide even wear and traction.

Radial Siping

Radial siping helps enhance traction in wet conditions.

Optimized Footprint

The optimized footprint helps deliver even wear.

Warranties & Guarantees

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

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Tire Specifications
Tire Specifications

Full Specs

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Load Range
Tire Size
  • Tire Size 315/80R22.5
  • Static Loaded Radius 0 in/ 0 mm
  • Load Range L
  • Tread Depth 18 / 14 mm
  • Revs 491 mile/ 305 km
  • Max Speed 75 mph/ 47 kmh
  • Tire Weight 130.6 lbs/ 59.2 kgs
  • Approved Rim Width 9.0-9.75 in
  • Single Max Load 9090 lbs/ 4123.2 kgs
  • Overall Diameter 44 in/ 1124 mm
  • Single Inflation Pressure 130 psi/ 896 kpa
  • Overall Width 12.3 in/ 312 mm
  • Dual Max Load 8270 lbs/ 3751.2 kgs
  • Overall Width Loaded 12.3 in/ 312 mm
  • Dual Inflation Pressure 130 psi/ 896 kpa