B-b-b-b-b-b-bicicle Rider
Joined: Apr 2005
Posts: 749
Likes: 5
From: Racine WI
Bikes: 1997, stumpjumper S-works hardtail, Medici, Giant Perigee(track dropouts and fixed gear), Columbia twosome, schwinn twinn, '67 raleigh 5 speed internal hub, Old triumph 3 speed, old BSA 3-speed, schwinn Racer 2spd kickback, Broken raysport criteriu
It sounds like a stretched shifter cable, which is a normal part of use. try simply twisting your barrel adjuster. Some bikes have them by the shift levers, some have barrel adjusters down by the derailleur, and some have both. You will want to effectively shorten the cable, but to do so you must effectively lengthen your cable housing. If your barrel adjuster gets maxed out, then you'll have to put the RD in the smallest cog, set then High gear limit screw so it holds the RD over that cog, then loosen the bolt that holds your cable onto the deraileur, and then pull it tight, and then tighten the bolt, and then back the limit screw off a half turn.
Hope that helps.
good luck