specs on the drivetrain:
Front derailleur . . . Shimano Deore Top pull, 34.9 mm/ 1 3/8" attachment
Rear derailleur . . . . Shimano Deore LX SGS
Crankset . . . . . . . . . Bontrager Select 44/32/22 64/106mm bolt hole circle
Bottom bracket . . . . TruVativ Giga-Pipe 73 x 113 (shell x axle,mm), ISIS splined axle
Chain. . . . . . . . . . . . Shimano HG-73 9 speed, 106 links
Cassette. . . . . . . . . . SRAM PG950 11-34, 9spd
the cable loosens when i'm on smallest ring...according to vid, i tighten barrel adjuster all the way, make low limit adjustments, then pull cable taught and tighten...then make further adjustments with barrel once high limit is set
appreciate the help guys...getting late and i put the bike away, so hopefully the LBS class will show me a few things
will update tomorrow
Last edited by sinfony78; 12-09-2012 at 09:13 PM.
if the cable is getting loose at the small chainring, then the derailleur is reaching some kind of lower limit. it's either the limit screw (you're sure you have been adjusting the right one?), some debris in there is preventing the derailleur from moving, or the derailleur really is at its minimum and there's some other problem like with your chainline like Andrw mentioned.
With your crankset/bb combo, your chainline would be affected by how your bb is threaded into your bb shell (is it centered, off to the left a few mm, or off to the right a few mm?) and your bb spindle length. In your case, check to make sure your bb is not off-center a few mm to the non-drive side of the bike.
Deore and LX are really nice groups. Certainly things wear out, but I don't think you're going to do better replacing those derailleurs if they're not actually worn out. Incidentally, while I have the SLX front derailleur, I've just been buying Deore rear derailleurs. I figure that when, not if, I break them, they cost less to replace. My 'cross bike also gets cheap wheels until I actually wear one out rather than damaging them in crashes. "Don't race what you can't replace."
Hopefully you learn something good today. If not, I think your best way forward is to figure out what, exactly, is stopping your derailleur cage from returning to a position closer to the centerline of the bike.
"Don't buy upgrades; ride up grades." -Eddy Merckx
i guess i meant the cable in general is slack while on the small chainring, which is how it's supposed to be, right? i'm checking the tension under the top tube..however, it is still bolted down to the derailleur pretty well
Originally Posted by NateHawk
as far as crankset/bb combo, i've made no changes down there...i'll ask the shop today what they think
and this is the race face chainring set i bought -
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