Definition of mountain biking
: the sport or activity of riding a 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)
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“Mountain biking.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mountain%20biking. Accessed 16 May. 2021.
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