The bicycle step (distance which it passes for a complete revolution of pedals) depends on number of teeths of asterisks in transfer and diameter of a wheel. At bicycles with multistage transfer the step varies - from 1,5 to 10 m. Such wide range can be important for trips in which sites of usual driving are combined with heavy liftings and descents. Choosing for itself a road bicycle it is necessary to remember that landing of the bicyclist should not be very inclined that by means of the bent wheel it is possible to choose more convenient landing that the bicycle should be necessarily equipped , and wider saddles are necessary for women. Choosing a mountain bicycle, it is necessary to be defined to begin with: for what you are going to use it. For high-speed driving on a cross-country terrain choose an easy bicycle with the forward shock-absorber. To jump through obstacles it is better on a rigid bicycle with good brakes.

For downhill racing will approach heavy-duty. At the present mountain bicycles from 21 till 27 speeds which can be switched depending on that how much a steep slope or descent. Three leading asterisks in front essentially expand a range of transfer relations. The big asterisk in front should have 50-53 teeth, small - 24-28. At the big asterisk behind should be not less than 28, and at small - no more than 12-14 teeths. The majority of models are equipped by forward shock-absorbers. Distinctive features of a mountain bicycle are: the reduced size of wheels (26 ?), the increased diameter of pipes, the Y-shaped form of frames and a direct wheel. The raised durability of knots and details allows to be careful to a lesser degree at overcoming of obstacles. However it is necessary to notice that the similar form of a frame and a direct wheel do not approach for driving lasting many hours in a current of many days successively. The hybrid bicycle is suitable for driving practically everywhere, except heavy impassability. Such bicycles represent a combination of various components of mountain and tourist bicycles. Transfer parities of a drive provide high speed on highway and passableness on mountains and impassability.

Tyre covers with a superficial protector do a bicycle by more suitable for driving on highway. However the structure of such bicycles has not settled yet definitively, and in it any changes are possible. In conclusion of given article we wish to recommend to you as to familiarise with article "It is time to buy a bicycle" - this information will help you to be defined with a financial side at bicycle purchase. As you can read about that how to choose an inexpensive bicycle (second half of article). And here you can learn more about "the technical" party of a question of a choice of a bicycle. We wish you successful purchase, and you have already made a correct choice - having decided to buy a bicycle.