# COOPER Roadmaster RM257 on Ship.Tires

> Structured data for AI agents and LLMs about the COOPER Roadmaster RM257 tire.

Brand: COOPER
Model: Roadmaster RM257
Website: https://ship.tires/tires/cooper/roadmaster-rm257
Variants: 10

## Category

## Available Sizes
- 225/70R19.5
- 245/70R19.5
- 255/70R22.5

## Specs
Load Ratings: 125/123, 128/126, 133/131, 136/134, 140/137
Speed Ratings: L

## How to Buy
1. View all sizes at https://ship.tires/tires/cooper/roadmaster-rm257
2. Select your size and add to cart
3. Free shipping on all orders
4. Professional installation available nationwide

Source: Ship.Tires — https://ship.tires
Updated: 2026-06-13