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Gear shifting - adjustment(5 posts)

Gear shifting - adjustmentVK
Feb 12, 2002 2:30 PM
Shifting on my bike is good except for when I try to shift from middle chainring to smallest ring. It doesn't shift fast/smooth enough. Do i adjust the front derailer or the cable. Thanks for any feedback.
Try lubing the cable.Retro
Feb 12, 2002 2:37 PM
That shift is made by the spring, and it has to pull the cable with it when it goes. Put a drop of lube on the cable where it crosses under the bottom bracket first. If that doesn't do it, try lubing or replacing the cable.
Did it ever work right?Spoke Wrench
Feb 12, 2002 3:11 PM
If it worked right when it was new, you probably have a cable that's kinked or binding up.

If it never worked right, you probably need a front derailleur adjustment. Don't know what kind of bike you have, but road triples with STI shifters can be a little touchy to set up.
Did it ever work right?VK
Feb 12, 2002 3:44 PM
you're right. it can be very frustrating and tricky to adjust. i'll try the lube thing then maybe adjust the cable and front derailer a little to see if i can get it just right.
re: Gear shifting - adjustmentfeathers mcgraw
Feb 12, 2002 4:19 PM
It could also be the limit adjustment. You might try unscrewing the lower limit screw slightly. One clue that this might be it is if it shifts better when you're in the small cogs (due to chain line) than when you're in the big cogs. In many cases the position of the front derailer when in the smallest chainwheel is more dependent on the limit screw than cable adjustment. In other words, the cable can be slightly slack when you're in the smallest chainwheel.