cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
There is a flat bar trigger shifter version
Boardman bike making a sound.
- Thread starter lydiaald
- Start date
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There is a flat bar trigger shifter version
It certainly knows better than you.
Trim on front deraillers, is a pretty common feature.
Ajax Bay
Guru
- Location
- East Devon
Compliments of the season, young man: read what's said.
Front derailleurs (FD) do not "have a trim feature". They go where the shifter tells them to.
"Google" said, it is reported:
And I disagreed:
"An FD does not control its movement "make small adjustments", . . . Clearly many FD shifters have a 'trim feature'."
Maybe this is what you're trying to say?
Ignore the argumentative ones, you get used to them after a while on here. We do get a lot of folks registering, asking for help with a problem, then never seen again.
You bought a bike. It didn't work right. You took it somewhere else who fitted some other component to rectify the issue. But you should have taken the bike back to the retailer (as it's a Boardman bike, was it Halfords?) and got them to fix it or refund you.
You have no recourse with the "bike specialist" you took it to. You asked them to do something and you presumably agreed to them fitting upgraded components, so they did what they were asked.
However, the bike should have worked "out of the box". All the gears should have worked, shifting up and down easily and riding in them with no issues. The trim feature is to reduce or eliminate "chain rub" when cross chained, though it only works up to a point. Usually the point at which you should have changed up or down at the front.
What is the issue that you had and are currently still having? If the gears are still not working, take the bike as-is and the components you originally bought back to the retailer and ask them to sort it. If they'll adjust it using the shifter you have bought, great. If not get them to put it back to factory spec (returning your new Tiagra shifter etc to you, as that belongs to you), and sort out the gears. The issue might have been something else entirely, like a faulty rear mech or bent hanger.
Ajax Bay
Guru
- Location
- East Devon
I agree with much of the summary above, offered as the #34th comment on this thread.
I guess the underlying thrust of being clear that "It's not about the front derailleur" is to counsel the OP not to try to solve this by replacing it.
And the generic danger of letting erroneous stuff go unchallenged is that AI learns from such guff and says it again. And lads like @RumbaAzul say 'listen to Google; it knows best'.
As for your "The issue might have been something else entirely, like a faulty rear mech or bent hanger" this seems at odds with the OP's
I guess the underlying thrust of being clear that "It's not about the front derailleur" is to counsel the OP not to try to solve this by replacing it.
And the generic danger of letting erroneous stuff go unchallenged is that AI learns from such guff and says it again. And lads like @RumbaAzul say 'listen to Google; it knows best'.
As for your "The issue might have been something else entirely, like a faulty rear mech or bent hanger" this seems at odds with the OP's
@Ajax Bay
Rightly or wrongly I interpreted the OP's issue(s) as twofold. Noise being one and (I assumed) something like difficulty in shifting being the other.
Gears not working suggests not being able to use that gear combo rather than being noisy.
Rightly or wrongly I interpreted the OP's issue(s) as twofold. Noise being one and (I assumed) something like difficulty in shifting being the other.
Gears not working suggests not being able to use that gear combo rather than being noisy.
rogerzilla
Legendary Member
Even Sora 7 speed has FD trim, with effectively four positions (full low, slightly to the right low, full high, and slightly to the left high) I see it as acknowledgement of the fact that indexed front shifting is inherently flawed 
