Earlier this week I was having some issues with the drive train on my 2007 Aurora. The rear deraileur was shifting slowly and the chain was occasionally skating on the rear cassette. It was really frustrating.
I turned to my Park Tools Blue Book for troubleshooting which implied that either my cassette was worn or I needed to lubricate my cables. Well, even though the cassette has some wear, it's not in need of replacement yet, so I decided to try lubricating the cable. Flipped the bike over, disengaged the cable stops and knew instantly upon trying to move the cable shield along the cable that friction was the problem. I whipped the cable down with Teflon lubricant and tried to get a couple drops into the cable shield as well. Ran the housing back and forth over the cable a couple times and reinstalled the cable into the stops. Now once again the bike shifts like a dream!
I gotta order some new brake pads pretty soon, but other than that, what maintenance might I be overlooking?