# GT RADIAL GT678 on Ship.Tires

> Structured data for AI agents and LLMs about the GT RADIAL GT678 tire.

Brand: GT RADIAL
Model: GT678
Website: https://ship.tires/tires/gt-radial/gt678
Variants: 3

## Category

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

## Specs
Load Ratings: 125/123, 128/126, 136/134
Speed Ratings: J, L, M

## How to Buy
1. View all sizes at https://ship.tires/tires/gt-radial/gt678
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: 2026-06-19