Originally Posted by
wkndwarrior
Lately, something hasn't been right with my rear shifter. When I shift up (to smaller cogs), there is sometimes a 3-5 second delay between me pushing the lever and the actual gear shift.
This problem does not occur when shifting down to lower gears (to larger cogs). Only when I shift up.
What's the problem and what should I do? I'm thinking of taking it in to the bike shop today.
Unlubricated/dirty/rusted derailleur cable and housing, broken strands, or bent housing that are causing high friction.
Lots of people recommend replacing housings annually which is over-kill, but even 3000-4000 miles of relatively dry weather can be enough to break a few cable strands and for oil to dissipate. Someplace like Seattle probably calls for more regular maintenance.