Akademik

a bicycle with a sturdy frame and fat tires; originally designed for riding in mountainous country

noun, pl ⋯ bikes [count]

: a type of bicycle that has a strong frame, thick tires, and straight handlebars and that is used for riding over rough ground

mountain biker noun, pl ⋯ -ers [count]

mountain biking noun [noncount]

ˈmountain bike [mountain bike mountain bikes] noun

a bicycle with a strong frame, wide tyres and many gears, designed for riding on rough ground

Derived Word: ↑mountain biking