R-210 · Route File

Billy-Diamond Road

Nord-du-Québec · Canada

The remote 620-kilometre road from Matagami to Radisson, formerly called the James Bay Road, with a single major roadstop at kilometre 381.

Primary window: Jun - Sep preferred for motorcycles
References: 8
Coverage: established
Reviewed: Jul 2026

Route tyre evidence

Tyres reported on Billy-Diamond Road

No reviewed tyre observation is published for this route.

Open the Tyre Library

No tyre name is inferred from route popularity, forum mentions or marketing. A report appears only after its tyre, motorcycle, route context, date and named source are reviewed.

Route-specific references

Sources for Billy-Diamond Road

Information tied directly to this road, track or route.

Roads and access

James Bay road network works
official · Société de développement de la Baie-James
Current works, closures, detours and affected kilometre ranges

Maps and navigation

Fuel and services

Km 381 roadstop services
official · Société de développement de la Baie-James
Official fuel, food, accommodation and mechanical-service location on the 620-kilometre corridor

Regional reference desk

Authorities covering the wider journey

Shared road, weather and access services used across Route Files in this region.

Weather

Quebec weather
official · Environment and Climate Change Canada
Official provincial forecasts and warnings

Roads and access

James Bay road network conditions
official · Société de développement de la Baie-James
Current conditions for the Billy-Diamond, Transtaïga and Route du Nord corridors

Emergency and medical

Field Links are reviewed references, not live guarantees. Conditions, closures, services and regulations change. Confirm critical information with the responsible authority before relying on it.