Reddit reviews Bike-Aid Dri-Slide 4oz. Lube with Needle Nozzle

areas of concern:

• tires, especially older tires with gum-colored sidewalls, tend to dry rot to the point of needing replacement
  
  
  
• rubber brake pads will release their plasticizers with age and begin to dry, crack, harden, and sometimes glaze, requiring replacement
  
  
  
• cables may be corroded inside the housing, making it difficult to shift/brake properly (this stuff is amazing, many graphite-based lubricants are suitable substitues, the idea is to free up crusty or rusted cables with something that won't gum up over time)
  
  
  the chain may still be good to go. i argue with coworkers who insist that any visible rust means the chain has to be replaced. my philosophy is as long as stiff links can be worked out and you're dealing with a reasonable amount of surface rust, corrosion isn't a big deal.

For clutch and throttle cables I've always used Dry-Slide, it's a moly-disulfide based lube in an oil carrier, eventually any oil dries, but the moly stays and keeps doing it's job and it doesn't attract dirt or grit, plus the applicator is small enough to get into the cable housing to put it in there and not drip all over the place.
http://www.amazon.com/Bike-Dri-Slide-4oz-Needle-Nozzle/dp/B001F2Y25G

I wanted to also mention that it may be the shifters themselves, depending on age and storage conditions. I see a lot of shifters with dried up grease that freezes the small moving parts in them, but that usually takes years of non-use.

If you just need to lube your cables and derailleur pivots, use Dri-Slide. Apply it sparingly, wipe off the excess, and do not get any in your eyes.

While you have the cable off, squirt some of this into the housing:

https://www.amazon.com/Bike-Aid-Dri-Slide-4oz-Needle-Nozzle/dp/B001F2Y25G/ref=mp_s_a_1_8?keywords=motorcycle+cable+lube&qid=1565823340&s=gateway&sprefix=motorcycle+cable+lube&sr=8-8#aw-udpv3-customer-reviews_feature_div

You don't need much; I've had the same bottle for 5+ years and it's really helped me get a lot of life out of my cables.

They often start to rattle with age too, especially in the cold. Some people have recommended lubing them this stuff: http://www.amazon.com/Bike-Dri-Slide-4oz-Needle-Nozzle/dp/B001F2Y25G to help, probably a good idea for longevity too.