I noticed that the shifting on my Fuji was pretty sluggish today. Last year I made the mistake of using wheel bearing grease to lubricate the rear derailleur cable. I normally use motor oil and reapply it every few years, and I never had problems with oil. However, the grease that I put on the cable must have gotten thicker while sitting over winter because there was a lot of resistance. Anyway, time to fix my mistake.
First unscrew the cable pinch bolt:
If you are putting a new shift cable on your road bike, then this is where you can pull it out of the shift lever:
The last step is to adjust the indexed shifting, since I had to unbolt the cable from the derailleur. I like to shift the chain onto the second largest cassette sprocket, then turn the barrel adjuster on the derailleur until the guide pulley is centered under the sprocket:
Turning the barrel adjuster clockwise will move the derailleur slightly to the right. Turning the adjuster counterclockwise will move the derailleur slightly to the left.
Moral of this story - don't use grease for shift cables.
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