Sports and Fitness, Equipment
Pedals on a bicycle are scrolled: reasons and ways of their elimination
If pedals on a bicycle are scrolled, it can happen for a number of reasons. Most often, this leads to improper care for a two-wheeled vehicle. The trouble can be caused by a prolonged failure of maintenance of the basic functional systems of the bike. To the deplorable consequences often leads to the wear and tear of certain details. Let's find out how to eliminate the problem of idle cycling of pedals on a bicycle, what factors contribute to such a breakdown.
Pedals on the bicycle: the reason
- On the bicycle the chain is stretched out;
- The front sprockets worn out;
- The elements of the back cassette have become unusable.
There is also a combination of the above-mentioned failures.
Assessment of the overall condition of the bicycle
If the pedals on the bicycle are scrolled, before moving on to dismantling its components and thinking about repair, it is worth to assess the overall condition of the bike. First of all, it is necessary to check how well the rear and front switches are set up, which is responsible for changing the speeds. A malfunction in the settings will be indicated by an uncharacteristic annoying crackle during driving, as well as a fairly regular hit of the chain between the asterisks as the pedals rotate.
Sometimes the problem affects the bikes, which do not have a gearshift system. In cases where pedals on a bicycle like this are scrolled, the first thing to pay attention to is the condition of the circuit. Perhaps to eliminate the trouble it will only require its thorough cleaning and lubrication.
Damage to the sprocket cranks
As for the reasons for damaging the cranks of the asterisks, this is most often caused by excessive pedal pressure during the ride. The "jaggies" on them can naturally result from friction. The end of the life of the asterisks will necessarily cause problems with the scrolling of the pedals.
In some cases, the trouble can be eliminated by flushing the asterisks from accumulations of old oil, debris and adhered mud. To remove these impurities, it is sufficient to thoroughly wipe the parts with a piece of material moistened with kerosene.
If the problem is serious and there are not enough teeth on the sprockets, you need to dismantle the functional node, disassemble it and, if possible, change the damaged elements to integers. Naturally, the most reasonable solution in this situation is the installation of a new set of stars. However, this option requires significant monetary costs.
Problems with the circuit
Perhaps the problem lies in the excessive stretching of the chain. In this case, it begins to sag unnecessarily, which leads to a weak grip of the asterisks and, as a result, the scrolling of the pedals. How to pull the chain? To do this, you have to shorten it. So, on one of the links there is a special latch, which opens the ring connection of the chain. Withdraw the part, it is enough to remove one or several links, knocking out the bushings with a hammer and metal breakdown. In conclusion, it will be enough to connect the circuit back to the same latch.
If the above actions did not resolve the problem, you will have to replace the circuit with a new one.
Problems with the rear ratchet ratchet
Bearings
Switches of speeds
How to eliminate the trouble? The primary cause here may be the stretching of the cables, the presence of contaminants on the gaskets. The solution is to remove them from the shirts and rinse the connections from the rust with a special WD40. If there is a rupture or critical damage to the parts of the cables, they will have to be replaced with new ones.
Should I lubricate the cables with oil? Specialists do not recommend resorting to such actions. Perhaps, at first, gear changes will be much easier. However, over time, the cables covered with lubricant will adhere to dirt, which significantly hampers their progress.
The ropes in the shirts must be routed so that the angle of their bending remains minimal. This will avoid excessive friction.
After servicing or replacing the cables, it will be necessary to reset the shift switches again. In the end, you will need to ride a bicycle, checking that the pedals do not turn as before.
Finally
Here we have considered the main malfunctions, which can lead to idle scrolling of the pedals on the bike. We hope that the information provided in the article will help you to eliminate the trouble and return your favorite bike to life.
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