South Downs 100
📍 South Downs, UK
Snowdonia, UK · 5 July 2026
Difficulty: 4/5 — Very hard
A 74km or 90km gravel and MTB route through Snowdonia's industrial landscapes, offering a challenging self-supported ride with significant climbing.
Visit official site →This event is for experienced gravel and MTB riders seeking a challenging, self-supported adventure in a unique landscape.
Riders new to off-road cycling, those unaccustomed to significant climbing, or individuals unprepared for remote, self-supported conditions will find this event difficult.
Riders should focus on sustained climbing fitness, off-road endurance, and self-sufficiency for remote terrain.
Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.
The event offers two distance options: a longer 90km course and a shorter 74km course.
The route utilizes forgotten quarry tracks, quiet mountain roads, hardpack, loose slate, and backroads through Snowdonia's industrial landscapes.
The provided text does not specify any cut-off times for either the 74km or 90km routes.
A homemade, fully stocked feed station with real food is provided. The event is otherwise self-supported, and riders navigate using GPX routes.
Entry includes a carefully planned GPX route, access to a feed station, a friendly atmosphere, and a unique finisher's medal crafted from local slate.
📍 South Downs, UK
📍 Yorkshire, UK
📍 eastern Switzerland, Switzerland