Thor, Jen M, Dougie, Eng
on Rear Unit
Hello and welcome to VisiHow. In this video, I am going to show you how to adjust the rear derailleur on a touring or mountain bike.
Here we have the rear derailleur
And the important components on the rear derailleur are the upper limit screw, which you can find here
The lower limit screw, which you will find just here
Here we have the 'B' tension screw
Here we have the gear cable
And here is the anchor for adjusting the cable tension
Here is the barrel for adjusting the cable tension
First thing I am going to do is turn the barrel in as far as it can go
Next we are going to take the upper tension, with a screwdriver you are going to adjust this, with the higher tension which I here
We are going to adjust, that until the chain here
Is level with the chain here
Always put the chain on the lowest chain ring for now, so we can angle it up and vertically it can't be in the same position
So we are looking for a straight line here, between this cord in the derailleur and the chain ring here
So we can adjust this here
It is necessary to adjust that until we are satisfied
When you are happy with that, we are going to loosen off the anchor.
Pull the gear cable tighter as much as possible
It is better if it is very tight because it can work more efficient ally
Then we are going to change gear to see how that feels.
So that feels quite smooth which is a good thing
There is no clicking noise, but if there is clicking noise you know you need to adjust the barrel on the gear cable. Loosen that off if it is not going properly.
The next thing to do is move into the middle chain rings
Once again check that the chain here on the on the chain wheel is in line with the derailleur
OK, you want a nice vertical line between the two so that they are not off, and that ensures a smooth transition between gears.
You can also check it on the biggest chain ring if you move to the back,
Then you use the lower limits
Move the lower limits and check that it is in line and then go throw the gears and make sure they are changing smoothly
If there is any clicking or it is not changing smoothly then you know you need to adjust. Try to make sure that it is in line all the time when you change gear.
If you can see the position then from here, we are using the lower limits, for the smallest cord we use high limit
Last is to adjust the 'B' tension screw
The 'B' tension screw adjusts the angle of the derailleur, the angle relating to the cassette. You will need to adjust this depending on the size of your derailleur.
If you have a bigger derailleur, you need to adjust this for you particular size
But always you want to keep the derailer as close as possible to the cassette, as this allows you to shift quickly, and it prevents unnecessary wear and damage to all the components.
So if you feel that you need to move this in closer, you can adjust this, and it ill adjust the angle by moving it further away or closer in
You don't want to move it to close because that will disrupt the flow, but you want I as close as possible to ensure maximum capability.
So you have been watching a video on how to adjust a rear derailleur on a mountain our touring bike
If you have, any questions or suggestions, please leave them in the section below.. You have been watching gVisiHow. Goodbye.
Video: Adjust Derailleur at Rear
on Front Unit
Hello and welcome to VisiHow. Today I'm going to show you how to adjust the front derailleur on a mountain bike or touring bike. The reason we need to adjust the derailleur is that after prolonged periods of riding, it's possible for the derailleur to move out of position or to be knocked loose if riding off road. If this happens, the gears will not change properly and the chain rubs against the derailleur.
There are two screws to adjust the derailleur
The first screw adjusts the low end of the derailleur.
The top screw adjusts the high end of the derailleur
In order to adjust the derailleur, we can look down the chain and see which side is too close to the chain
If the chain is rubbing against the low end, we can turn the screw to move the low end of the derailleur out. If we turn it counter clockwise, then it moves the derailleur in towards the chain. It is the same for the high screw, if you turn it clockwise it moves it out and if you turn it counter clockwise it moves it in.
In order to see if your adjustments are correct, you need to test the gears on all 3 of the front chain rings and if there's any rubbing or skipping, then you know you need to readjust the derailleur
That is how to adjust the front derailleur on a mountain bike or touring bike
If you have any questions, suggestions or comments leave them in the comment box below. Thank you for choosing VisiHow.
Video: Adjust Derailleur Front
If you have problems with any of the steps in this article, please
post in the comments section below.
Bikes & Motorcycles
Recent edits by: Dougie, Jen M, Thor