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mountain bike

noun

Simple Definition of mountain bike

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of mountain bike

  1. :  an all-terrain bicycle with wide knobby tires, straight handlebars, and typically 18 to 21 gears

mountain bike intransitive verb
mountain biker noun

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