Gravel bikes run at a higher speed than the mountain bikes. Gravel bikes use a drop handlebar while mountain bikes use a flat handlebar. Gravel bikes move faster on the paved surface than mountain bikes. Mountain bikes have better brake system application compared to gravel bikes.
Yes, hybrid bikes are strong and can ride on gravel. Most hybrid bikes are designed for all-terrain and comes with wide tires different from a typical cruise bike. When it’s time to grind some gravel, use the wide-hybrid tires to get momentum.
Just know that the SB130 has a better frame, is made with high quality materials, and is designed for the most basic rider. The Yeti SB140 comes with a lot of accessories, it’s easier to maintain, and mostly designed for pro cyclists.