Wrenching Wednesdays: Wrenching with Beth — What Does Your Chain Say About You?
Chains—every bike has one, and it’s such a small component that it can be easily overlooked, which can lead to some undesirable consequences. The chain is one of the most important parts of the bike because, without it, the basic function of transferring power from the pedals to the rear wheel (and propelling the bike forward) can’t happen.
As a mechanic, I can tell a lot about a rider just by assessing the condition of their chain. Keep reading to find out which chain-care example matches your situation—and how to fix it.
The Over-Luber
Nothing makes a mechanic cringe more than a chain blackened with a mixture of wet dirt and excess lubricant. It not only makes a mess of the drivetrain and frame, but also accelerates wear on the chain and other components.
Over-lubricating usually happens when:
-
You don’t wipe the chain clean before applying lubricant.
-
You apply too much lube—especially on top of an already dirty chain.
Using the wrong type of lube for the riding conditions can also be a culprit. For example, using a wet lube in dry, dusty conditions will attract dirt quickly.
If you’re guilty of over-lubing, here’s how to fix it:
Start by making sure your chain is clean before applying lube. You can use a rag or old shirt with some diluted dish soap. Of course, there are also professional cleaning products like Muc-Off Bio Drivetrain Cleaner—but household cleaners will do the trick in a pinch.
To clean the chain, either pedal backwards while holding the chain with a rag soaked in your solution or use a chain-cleaning device with a chamber for fluid. Some people prefer removing the chain entirely and soaking it in a bucket.
Once the chain is clean and dry, apply a small amount of the appropriate chain lube based on the trail conditions.
-
Wet conditions = wet lube
-
Dry conditions = dry lube
-
Mixed conditions = a good all-around lube
The Chain Squeaker
Ah yes, the unmistakable squeak of a dry chain—there’s nothing more aggravating to a bike mechanic, especially when the rider doesn’t even notice.
A dry chain is even harder on a drivetrain than an over-lubed one due to increased friction. If ignored long enough, it could even snap mid-ride!
If this sounds like you, the solution is simple: lube your chain.
The Chain Stretcher
Even a well-lubricated chain can become a “chain stretcher.” This doesn’t mean the chain physically stretches—it refers to chain wear over time.
Chains are made of outer links, inner links, pins, rollers, and bushings. The rollers wear down from regular use, causing them to misalign with the chainring and sprockets. This can lead to shifting problems and increased wear on your entire drivetrain.
If you’ve ever seen a mechanic use a chain wear indicator tool, that’s exactly what it’s for—measuring chain wear to know when to replace it.
To prevent costly repairs:
Buy a chain wear indicator tool and check your chain regularly. Think of it like changing your car’s oil—doing it on time saves you money in the long run.
Final Thoughts
Taking care of your chain is one of the easiest home maintenance tasks you can do—and possibly one of the most important. For the low cost of a bottle of lube and a few minutes every other week, you could save yourself hundreds in replacement parts.
Want More Wrenching with Beth Articles?
Subscribe Now.
