After doing the video of how to regulate a Di2 electronic rear derailleur, let's go
with the front derailleur.
Just like we told you with the electronic change A great advantage of these components is that,
once they are regulated well it is very difficult that they get out of adjustment, but if for any reason
does not rise or fall well, or rubs the chain in combinations of acceptable development, or you get the
chain, it will have to be readjusted, and it will also be necessary whenever we change the model
or plate size.
The first thing we have to do is check that the derailleur is properly positioned, both
in height as in angulation.
For the height, we should have it in small plate and leave a distance between 1 and 2 mm. between
the teeth of the large plate and the outer plate of the deviator. The usual thing is to have to use
an Allen key of 5mm. For angulation, at the same time we place it
at the correct height we have always placed the deflector plates parallel to the plates,
but in electronics we can make a finer adjustment if we place the front
of the right plate on the big plate, so that the back edge is between 0.5
and 1 mm. to the left of the leading edge, as if I was a little twisted inward.
We always recommend using a torque wrench, so here we should press between 5 and 7
newton metro
Now we squeeze slowly with an Allen wrench of 2 on this fastening screw, which
it is not easy to see and that we should not confuse with screws H and L of the movement stops.
This screw is a point of support of the derailleur on the frame that gives it more rigidity and also
it helps us to finely adjust the angle of the derailleur leaving the outer plate just
on top of the plate and parallel to it.
A small detail, but very important, the screw that we just talked about,
can not support on the box directly because it can crack, especially if it's
carbon, if you are going to install it from the beginning on the bike observe that it comes standard with
these plates that we should put right where the screw will support. If we were already mounted
the derailleur on the bike, check that the plate is in place before acting on that
screw. Here you have an example, the plate it's dropped and if we tighten the screw the
we annoy Other bikes come with their own protection,
and if the derailleur is clamp, the screw You can rest on the clamp itself without
problems. The screw should rest on the part of
plate that does not have the adhesive.
Now we go with the stops, if your model is prior to 2017 in Durace and 2018 in Ultegra
we will have two screws, H and L. Putting the chain to the left,
that is, in small plate and large pinion we will adjust with the screw L so that the
left plate of the derailleur is the most near possible chain, without getting to touch.
Tightening the screw, we will move the stop to the right and loosening to the left. Between
Half a millimeter and a millimeter would be what ideal.
Now we go with the H, we put the chain to the right of the whole, that is, big plate
and small pinion and we adjust so that the right plate of the derailleur is the most
near possible chain without touching. The same than before, between zero point five and one millimeter.
Unlike traditional derailleurs, the screw acts just the opposite. Yes
we tighten the screw, the derailleur will move to the right and if we loosen to the left.
If the deviator is after 2017 in Durace already 2018 in Ultegra will not have screw L,
the adjustment with the screw H will be the same, and the bottom stop we will do it by going into mode
adjustment by pressing the button of the control unit, until the red LED lights up, you know
that the switchboard can be, in the box, at the end of the handlebar, or under the power.
Now, just like with the rear change, acting on the controls of the handle we are moving
the derailleur with micro adjustments to the right or left until the left plate is
as close as possible to the chain without rubbing. The levers act the same as when we change
normally the one that has relief to move the deviator to the right and the other to take it
to the left, when we have it ready. We exit the adjustment mode by pressing again
the switchboard button until it goes out the red LED.
And we have the adjustment of the extreme position of large plate and large pinion, which is a
admitted development, and there the diverter either must rub against the chain. We gear that position,
we return to the adjustment mode and with the the lever as before we move
the derailleur with the micro-adjustments so that the left plate of the derailleur is at medium
millimeter of the chain, very very close, but without rubbing We return to normal mode and that's it.
Once this is done, the diverter never will rub on the chain, because as we change
the pinions the system will move automatically the deviator to avoid any friction.
And never remove the Warning sticker, it will help us to be careful when handling it,
the engine has a lot of force, and if it catches us a finger the breakdown will be serious, and I do not speak
of the bike
Thank you very much for listening to us, do not forget subscribe to be always up to date with
world of the bike and we always thank you I like him".
And we said goodbye with a smile.
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A few months later he says: Grandmother! And after two days the grandmother dies.
Months later he says: Dad
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And suddenly ... The neighbor dies!
See you in the next video!
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