Mountain Bike
Usually starts from £400 for a decent mountain bike. These are designed for use off road. They can be used on road, but, they will be significantly slower than a road bike, due to their thick tires. If you use a mountain bike predominantly on the road, you can choose thiner tyres. However, if you don’t plan to go off road, you would be better off choosing a hybrid or town bike.
Hybrid – Town Bike.
These are designed primarily for short distance commuting. They have fairly thick tyres like mountain bikes, but, also have features such as mudguards, panniers for helping with shopping e.t.c. Hybrid bikes are mass produced and can start at quite low prices. However, if possible, it is worth spending an extra £100 to get a really good solid purchase.
If you value speed whilst commuting, buy a road bike and add the necessary extras. This means you get the benefits of the speed, plus the option to use it as a commuting bike.
Touring Bike
As the name suggests geared towards touring, with panniers and an extensive range of gears. Similar to a hybrid bike, but, usually better quality and more expensive. Tyres may be a little thinner.
Road Bike
If you value speed a road bike, will give you the best experience. Significantly faster than a hybrid or mountain bike. Some people may be put off by the very thin tyres. But, if you are careful in wet weather, they are just as stable.
Raleigh Chopper.
Well, it looks cool.

Top ten Bikes
BMX
Chopper
Tricycle
Raliegh
Penny Farthing
Bone Shaker
C5
Shopper
Drop Handle Bars
Sit – up and beg