A cruiser bike is a bike that gives an upright riding postion, is usually blinged out, and is ridden rather sedately.
MTBs are available in several different versions(XC, AM, DH), but basically they're about providing a compromise between ruggedness and rideability.
Mountain bikes have much knobblier tires and usually have suspension, which is rarely available on cruisers. Mountain bikes are also used competitively.
The main difference in speed between a mountain bike and a road bike is that road bikes are generally faster due to their lighter weight, smoother tires, and more aerodynamic design. Mountain bikes are designed for off-road terrain and have features like suspension and wider tires, which can slow them down on paved roads.
A mountain bike is designed for off-road trails with features like suspension and knobby tires, while a road bike is built for smooth pavement with a lightweight frame and narrow tires for speed.
A road bike is designed for smooth, paved surfaces and is lightweight with narrow tires for speed. A mountain bike is built for rough terrain with wider tires, suspension, and a sturdy frame for off-road riding.
I have no idea what you mean by "gear bike", so the question can't be answered.
The difference is that the mountain bike tube is much burlier and wider than the dirt jump tube but may not be as strong in terms of hard hitting strength.
Mountain bike helmets are better than dirt bike helmets
A road bike is generally faster than a mountain bike due to its lighter weight, smoother tires, and more aerodynamic design. Road bikes are designed for speed and efficiency on paved roads, while mountain bikes are built for off-road terrain and have features that prioritize control and durability over speed.
Not particularly, 10 mph is below average sprinting speed. The record speed on a mountain bike is above 100mph.
The maximum speed of a 21-speed mountain bike can vary depending on factors such as the rider's strength and terrain. On flat ground with a strong rider, a 21-speed mountain bike can reach speeds of up to 25-30 miles per hour.
The main differences between a mountain bike and a road bike are in their design and intended use. Mountain bikes are built for off-road terrain with features like suspension, wider tires, and lower gears for climbing. Road bikes are designed for smooth pavement with lighter frames, narrow tires, and higher gears for speed.
Mountain bike
The average speed reached during a downhill descent on a mountain bike trail is typically between 15 to 30 miles per hour, depending on the terrain and skill level of the rider.