Gravel: 3.7-4 even 650b. MTB: strong sidewalls, good tire tread.
Our MULTIDAY GRAVEL trips are designed for riders who have biking as their key hobby and are comfortable riding for 4-5 hours (with stops, we are not racing through). There are not very long climbs but frequent changes of terrain. The challenge of gravel riding in Iceland is the gravel can be loose and chunky,...
Expect 50-100km per day, distance based on final road selection, climbs and terrain.