Gravel bikes and mountain bikes are designed for different types of terrain and riding styles. A gravel bike is designed for riding on gravel roads, dirt roads, and other unpaved surfaces, while a mountain bike is designed for riding on rough, off-road terrain, such as trails, single track, and rocky terrain.
While it is possible to use a gravel bike as a mountain bike, it may not be the most suitable or efficient choice for this type of terrain. Gravel bikes are generally lighter and more nimble than mountain bikes, and they are optimized for speed and efficiency on smooth or moderately rough surfaces. They typically have narrower tires and less suspension travel than mountain bikes, which can make them less stable and comfortable on rough, technical terrain.
On the other hand, mountain bikes are built for durability and strength, with wider tires, more suspension travel, and a more upright riding position. They are designed to handle the demands of off-road riding, including steep descents, jumps, and drops.
Overall, while a gravel bike can be used to ride on some types of off-road terrain, it may not be the best choice for more challenging mountain biking trails. If you are planning to do a lot of mountain biking, it may be worth considering a dedicated mountain bike.