Despite the fact that the speed selector has a primitive mechanical design, its adjustment may be for lovers of cycling rather complex exercise.To learn how to adjust the speed of your bike and learn how to use the switch, read this article.
define the terminology
Before we talk about such a concept as adjustable speeds of a bicycle, you need to understand the basic definitions, so that even the novice cyclist, it was clear what was going on.
switch speeds sometimes called perekidkoy.It is an indispensable component of any modern high-speed bicycle.It looks like a rectangle with a spring mechanism, which is attached to frame (or foot).Speaking of speed switch, it is impossible to disregard the control stick - a device that is designed to manage perekidkoy by adjusting the tension of the cable.Usually this important piece mounted directly on the steering wheel.But there are models of bicycles, where The lever is on the lower frame tube of the front triangle.
Every experienced cyclist knows what a cock cassette system and a high-speed bicycle.For the rest, we give the definition of these terms:
- Rooster - often aluminum parts, whose main objective - to keep in safety gear shift and rear frame.It is attached directly to the frame, and already it is fixed perekidka.
- Magazine - Stars / gears of different diameters, which are the rear bicycle hub transmission.Set the tape to the back of the drum sleeve.
- system - front unit transmission.Unlike tape, star of hollow bolts are fixed to the rods.Just note that it is a modern high-quality models.On cheap bikes impossible to disassemble the system, and all the stars are fastened together by rivets.
How to regulate the speed of a bicycle without fixing screws?Two notorious switch to the H and L marks are right on perekidke.First - Hight - this stop screw for adjusting the transmission of large (or small stars or gears).L (Low) adjusts transmission small.On the different models of their location may vary.
Possible causes fuzzy / improper switching speeds
Before describing how to set up speed on a bike, let's talk about the possible causes of such defects:
- deformation of a switch or a rooster;
- the return spring is not working properly;
- tension cable.
How to fix defects?
Each bike with speeds must be careful owner.That is all the details - cable, stars and switches - should be lubricated with special tools - lubricant.
If the cable is extended, it can be a little pull.In the case when he broke his right should be replaced.The algorithm of actions:
- first you need to unwind the cable locking screw on the switch;
- followed by pull or cut the cable, if it is severely bristling;
- then is to understand the control stick;
- in the hole you want the new, heavily oiled rope lubricants;
- it must continue to pass through shirts that are pre-installed in the slots;
- at the end of a cable on the switch to fix the appropriate screw.
If the spring may not work well, it must be washed with water and grease.
deformation rooster can be seen not only in the special bike shop.Bent cock visible, if you put the frame rear derailleur diagonally.In the case of easy deformation it can align yourself stretched until smooth staging of hind legs.However, remember that this is only a temporary measure.The deformed part is best to replace a new one.The same applies to the bent perekidki.
How to adjust the speed of a bicycle?
In modern data models Tranfer switch means there are two speeds - front and rear.Usually it begins with the latter, but there are cases when you need to configure only one perekidku.
Configuring rear derailleur
First of all you need to put the chain on the smallest star of the cassette.You can do this by using the right control stick - this detail directly impacts the rear shifter on the bike.To release the cable, you need to unleash the screw that fixes its position.The screw marked H need to unscrew the screw driver so that the smallest sprocket was in one plane with an asterisk in the foot.Then you need to pull the rope and fasten the screw.
after be sure to check the operation of perekidki.If the chain does not switch on large rollers (stars), then you need a cable to pull even more from the drum is already on the bracket or perekidke.The chain moves on the biggest roller and screw L adjusts the position of the switch.Ideally perekidki should not be able to get into the spokes, ie, foot and star must be in the same plane.
Configuring front derailleur
This sequence of actions will tell you how to adjust the speed of a bicycle, setting the front perekidku:
- circuit again need to be moved to a smaller star.
- Remove the screws, release the lock.
- With screw L necessary to adjust the position of the frame, that is, the chain should be in the middle, and not to touch the plate.
- Next, you need to pull a cable and fasten the tightening screw.
- With the switch you need to move back into the circuit tape at most smaller star.
- Near perekidkoy need to move the chain to the very average movie.If the chain is on the second star, touches the outside of the box, should be stronger pull a cable drum on the left control stick.
- When you need to put the switch on the largest gear wheel.If the chain is touching the walls of the box, it needs to be moved so that it is centered.You can do it with the screw N.
reading this article, you will know the answer to the question of how to set the speed of a bicycle.The main thing - to follow the above sequence of actions, and the process of adjusting the speed selector seem like not such a difficult task.
