Easy
Mostly at with some gentle climbs on smooth track with easily avoidable obstacles such as rocks and potholes.
Intermediate
Steep slopes and / or avoidable obstacles possible on narrow track and/or with poor traction. There may be exposures at the track’s outside edge.
Advanced
A mixture of long, steep climbs, narrow track, poor traction and obstacles that are difficult to avoid or jump over. Generally exposed at the track’s outside edge. Most riders will find some sections easier to walk.
Expert
Technically challenging. Giant climbs, narrow track and numerous hazards including dangerous drop-offs, sharp corners and difficult obstacles. Expect walking and possibly bike carrying.
Extreme
Downhill / free ride specific tracks. Extremely steep sections with large drop-offs and other unavoidable obstacles. May include man made structures and jumps.