A cruiser bike is a bike that gives an upright riding postion, is usually blinged out, and is ridden rather sedately.
A dirt bike is something like a cross between a BMX and a MTB. Usually a singlespeed, suspension fork and rugged frame to stand up to jumps and tricks. MTBs are available in several different versions(XC, AM, DH), but basically they're about providing a compromise between ruggedness and rideability.
The biggest difference between a chopper bike and a cruiser style bike is that with a cruiser you are leaning forward, lying on the bike as it were, with a chopper style bike you are sitting upright and the handles are higher up.
A normal bike is different that a cruiser bike in many ways. A cruiser is not meant to be ridden long distances and is mostly meant for having an easy ride. A road bike is meant to go long distances and is therefore lighter.
A road bike offers a more preformance-oriented, streamlined hunched over riding position and bike design, while a cruiser bike has the rider more upright and is more set up for comfort than speed.
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 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.
In 1979 the first official mountain bike was launched. Tom Ritchey of Redwood city, California started building fat-tire frames. The Lawwill Pro Cruiser was the first mountain bike which was sold for $500 overseas.
Not a lot. Townies tend to be a bit more utility oriented, and cruisers a bit more blinged out. Both will give you a very upright riding position, and aren't particularly suited for energetic riding.
A DH bike is heavier, stronger, has a slacker steering angle and plusher suspension. The XC bike is lighter, more responsive, weaker and has less travel in its suspension.
IMO there isn't that much practical difference between similarly priced bike computers. Find one with the features you want and a user interface you like and you're good to go.
no but you can get a dirt bike or a cruiser bike or a speed bike but i havnt seen a bmx bike yet.