Mountain bikes, or MTBs, are a versatile type of bike that can be used for a variety of purposes. They are commonly used for trail riding, cross-country riding, and even racing. While there is no definitive answer to the question of how much a mountain bike costs, the starting price for a decent quality MTB is typically around $500. Of course, as with any product, there is a wide range in prices depending on features and quality. At the high end, some mountain bikes can cost as much as $10,000 or more. However, most people who are looking for a good all-around mountain bike will be able to find one in the $500-$1000 range that suits their needs perfectly.