Beginner – Mostly flat, wide, smooth track or gravel road.
Casual rider – Mostly flat with some gentle undulations and climbs on smooth track with easily avoidable obstacles such as rocks and potholes.
Intermediate rider – Can have steep slopes and/or avoidable obstacles. Generally on narrow track and/or with variable traction. There may be exposure at the track’s outside edge.
Advanced – A mixture of long, steep climbs, narrow track, variable traction and obstacles that are difficult to avoid or jump over. Can be 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.