Parts and equipment for motorcycles, quads, scooters and bicycles

derailleur chain banner

My bike is derailing, what to do and how to avoid the problem?

Several reasons can explain the regular derailment of your bicycle.

This may be due to a warped or warped part. Check the condition of your tray as well as that of your pebbles. You can also check the condition of other parts surrounding the transmission system. Among them are the derailleurs, the cage and the stops. Remember to check the condition of your sprockets, if the teeth are too worn, you must replace them par some new.

Another potential reason for a subsequent derailment may be the poor condition of your chain. Indeed, it may be too worn or have broken links. In this case, the transmission cannot be done correctly. If this is the case, we advise you to replace your chain par a new one.

If the problem does not come from one of these reasons, we also advise you to check the progress of your wheels. They must be well placed so that the chain is not too taut or slack.

Once the origin of the derailments has been found, all you have to do is repair the parts. Replace worn or broken parts par new or restore them to good condition by giving them the correct shape or replacing them correctly.

How to avoid derailments?

To prevent your bike from derailing regularly, we advise you to properly maintain your parts and your bike chain.

Indeed, it is very important to keep a Bike chain in good condition car it impacts all other parts of the transmission system. If worn too much, it can break the cog teeth or break itself.

With good maintenance, your chain will gain in life. To do this, we advise you to clean it regularly with a degreaser and to lubricate it in order to protect it from dirt.

Remember to tighten the derailleurs so that the chain remains taut.

When riding your bike, learn to change gears at the right time. You will then reduce the risk of your bike derailing. Remember to change gear before going downhill or downhill and change your gears while continuing to pedal.

When does the chain come out at the bottom bracket?

There are several reasons for what is considered to be an incorrect adjustment of the front derailleur on your bike. They lead to derailing each time you try to shift onto the large chainring (the chain derails outward) or the small chainring (the chain derails upwards). interior).

The object of the game is therefore to avoid this at all costs. First of all, if you don’t have a handy streak, it’s not a problem at all, but I would advise you to go see a bike dealer as soon as possible to ask him to adjust your transmission. It is generally not very expensive and you will leave with peace of mind and assured pedal stroke.

derailed chain
chain

When does the chain come out at the rear derailleur?

As with the front derailleur, you will need to adjust the stops first to identify if the "failure" comes from there. Then, because otherwise it's not funny, you'll have to check a little detail that makes all the difference: the derailleur hanger.

Ma derailleur hanger is twisted, how to do? : the derailleur hanger is where the rear derailleur bolts. There are different kinds, some are individual spare parts (they act as a fuse) and some are an extension of your bike frame.

In the case of the fuse, during a shock, bad storage or other, it is she who will bend and which can go so far as to break to preserve your frame. In the case of the derailleur hanger which is also your frame, if you break it is the end of your frame. Or you will have to make it a single-speed because you won't be able to screw in a rear derailleur.

How to know if it is twisted? : Watch your bike par back and put yourself on the smallest cog. Or rather do both actions in the other direction, it makes more sense. The chain, the small sprocket and the derailleur pulleys (the things that spin with teeth in the derailleur) need to be aligned. If you don't see them lined up, look at where your derailleur bolts. If you seem to be going inside, that's bad. My advice, go to a bike dealer for a straightening. The risk is that when you are on the large sprocket (the easiest), the derailleur can get caught in the spokes of your rear wheel, create an accident, and break your frame (s†™there is no fuse mode derailleur hanger). If he is nice, he will warn you a little beforehand by humming each time he comes into contact with a ray.

Why does the chain jump on the rear gears? : This kind of problem often happens when the wear of the transmission is too important. If you ride a lot, you have to maintain the various elements that wear out: freewheel/cassette, chain, and crankset. Not to mention cables and sheaths. They play a major role in the communication between your shifters and your derailleurs.

When your chain jumps when you step a little harder on the pedals than usual, it is a sign that it is probably time to change one of these parts. these. Or maybe several. This is part of the normal maintenance of your bicycle and believe me, it is not worth continuing your rides with a faulty transmission.

How do you fix a derailed bike when changing gears? : You now have the various keys which will enable you to identify the probable causes of a malfunction in your gear changes. – poorly adjusted stop screws – bad position or bad inclination of your derailleurs – excessive wear of the elements of your transmission.

Feel free to try making these repairs and adjustments par yourself! It is very formative and with a little practice it will seem quite accessible to you. It is, moreover, quite reassuring to know what reflexes to have when your bike no longer obeys you.

Resolutions on the go

1 - Before dismounting, downshift to the smallest of the front chainrings (using the left hand grip). Being wedged on the smallest front chainring implies that the chain is placed on the largest notched wheel. Keep pedaling. This simple step should allow the chain to realign itself.

2 - If step 1 did not work, get off the bike and lift the rear tire while spinning the pedals with your hand.

3 - If step 2 is not enough, push the rear derailleur forward to release the tension on the chain. Lift the chain and put it back on the chainring. Rotate the pedals with your hand while lifting the rear wheel to realign the chain (as in step 2). Bike chains are very oily and you will get your hands dirty. Use a pair of mechanic's gloves, if available, or use a twig or leaf if you can. This step may take several attempts, but will eventually par function.


HERE 100% OF THE PARTS INDICATED IN STOCK REALLY ARE!