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Quite simply, I'm having problems with my front derailleur, getting it to shift from the middle chainring to the largest one. These days I'll shift the lever, the derailleur with move, but the chain with stay on the middle chainring while rubbing away at the derailleur cage. Random acts can temporarily 'rectify' this problem and shift the chain over - stop pedalling and start again, shifting to a smaller cog in the rear, that sorta thing.
I've meddled with the H-limit screw a bit. I've unscrewed it quite a bit in hopes that this will bring the cage outwards a bit more when I'm upshifting so that it'll help pull the chain out to the largest chainring, but that hasn't helped too much. I've lubed the chain a couple of times now. I've even tried tugging at the derailleur cage. And I've tried reading up the repair help section at Park Tools. All to no avail.
A quite bit of background - I had nasty crash about a week ago that slightly bent the rear derailleur to the point that when I tried shifting to the largest rear cog, my chain would get dropped. In that time, I've bent the rear derailleur back and everything shifts quite cleanly now. Now the front is giving me problems. Could my front derailleur problems be caused by my rear derailleur? I ask because I know that almost nothing works independently on a bike and that "the hip bone's connected to the leg bone, the leg bone's connected to the foot bone..." and so on.
Can anyone offer a bit of help so that I don't have to go through the hassle of hauling the bike over to the LBS?
I've meddled with the H-limit screw a bit. I've unscrewed it quite a bit in hopes that this will bring the cage outwards a bit more when I'm upshifting so that it'll help pull the chain out to the largest chainring, but that hasn't helped too much. I've lubed the chain a couple of times now. I've even tried tugging at the derailleur cage. And I've tried reading up the repair help section at Park Tools. All to no avail.
A quite bit of background - I had nasty crash about a week ago that slightly bent the rear derailleur to the point that when I tried shifting to the largest rear cog, my chain would get dropped. In that time, I've bent the rear derailleur back and everything shifts quite cleanly now. Now the front is giving me problems. Could my front derailleur problems be caused by my rear derailleur? I ask because I know that almost nothing works independently on a bike and that "the hip bone's connected to the leg bone, the leg bone's connected to the foot bone..." and so on.
Can anyone offer a bit of help so that I don't have to go through the hassle of hauling the bike over to the LBS?