What maintenance your bicycle needs, and how often
Regular maintenance on a bicycle means checking and adjusting the same parts every few weeks or months—the chain, brakes, tires, and cables—so small problems don't become expensive repairs. Most of this work takes 15 minutes to an hour and requires only basic tools you may already own: an adjustable wrench, a screwdriver, and a bicycle pump. If you ride several times a week, plan on spending 30 minutes every two weeks on basic checks. If you ride casually, monthly checks are enough.
The goal is to catch wear before it damages other parts. A dry chain will eventually damage your gears and chainring. Brake pads that are worn thin will score your wheel rims. Tires that are underinflated will wear faster and make pedaling harder. None of these problems are expensive to fix if you catch them early, but all of them become expensive if you ignore them for months.
Key Takeaways
- Check your tire pressure and brake function every two weeks, since these affect your safety and how hard you have to pedal.
- Clean and lubricate your chain every 100 to 150 miles of riding, or whenever it looks dry or rusty.
- Inspect your brake pads for thickness and your cables for fraying every month, replacing them before they fail completely.
- Have your wheel rims and spokes checked by a bike shop once a year, since true wheels are difficult to fix at home without special tools.
Checking and inflating your tires
Your tires lose air slowly over time, even without a puncture. Check the pressure every two weeks by squeezing the tire with your hand—it should feel firm but not rock-hard—or use a bicycle pump with a built-in gauge. The correct pressure is printed on the sidewall of your tire, usually between 40 and 100 PSI depending on the tire width and your weight. Underinflated tires wear faster, make pedaling harder, and increase the risk of pinch flats (where the tube gets pinched between the tire and rim).
Inflate using a floor pump, which is faster and easier than a hand pump. Attach the pump head to the valve (either Presta or Schrader, depending on your bike), push down firmly, and pump until the gauge shows the correct pressure. Release the pump slowly to avoid losing air. If you find yourself refilling a tire more than once a month, the tire may have a slow leak—inspect it for thorns or punctures, or take it to a bike shop to have the tube replaced.
While you have the pump out, look at the tire tread and sidewalls. If the tread is worn smooth or the sidewall is cracked or bulging, the tire needs replacement. A worn tire is more likely to puncture and is unsafe at high speeds.
Cleaning and lubricating your chain
Your chain is the hardest-working part of your bike and needs lubrication every 100 to 150 miles of riding. A dry chain makes a squeaking noise, wears faster, and eventually damages your gears and chainring. The easiest way to know when to lubricate is to listen: if your chain squeaks when you pedal, it needs oil.
To clean the chain, shift into the smallest chainring and largest rear cog (the easiest gear). Wipe the chain with a dry rag while slowly pedaling backward, removing dirt and old lubricant. Then explore a thin line of bicycle chain lubricant to the top of the chain while pedaling backward slowly, letting the lubricant work into the links. Wipe off any excess with a clean rag—too much lubricant attracts dirt and makes the chain dirtier faster.
Use only bicycle chain lubricant, not general-purpose oil or grease. Bicycle lubricant is designed to stay on the chain without attracting dirt. If you ride in wet or muddy conditions, use a wet-weather lubricant. If you ride mostly on dry roads, a dry lubricant works better.
Inspecting and adjusting your brakes
Check your brakes every two weeks by squeezing each brake lever firmly while the bike is stationary. The lever should feel firm and stop before it touches the handlebar. If the lever feels spongy or travels too far before the brakes engage, the brake cable may be stretched or the brake pads may be worn thin.
Look at your brake pads from the side. They should have at least 2 to 3 millimeters of rubber left. If the pad is worn down to the metal backing, stop riding and replace the pads when ready—metal-on-metal braking will damage your wheel rims and is unsafe. Most brake pads are straightforward to replace: remove the old pad, slide in the new one, and tighten the bolt. If you are unsure, a bike shop can do it in 10 minutes.
Spin each wheel and watch the brake pad clearance. The pad should be close to the rim but not touching it when the brake is released. If the pad rubs the rim, the brake needs adjustment. Loosen the bolt that holds the brake arm, center the arm so the pad is equidistant from the rim on both sides, and tighten the bolt again. This takes practice, so do not be discouraged if it takes a few tries.
Checking cables and housing for wear
Your brake and gear cables run through plastic housing and can fray or corrode over time. Every month, look at the cables where they enter the housing. If you see exposed wire strands, the cable is fraying and should be replaced soon. If the housing looks cracked or crushed, water can get inside and corrode the cable, making shifting or braking sluggish.
Squeeze the brake and shift cables gently along their length. They should move smoothly without catching or binding. If a cable feels rough or sticky, it may be corroded inside the housing. Corroded cables are harder to fix at home—a bike shop can replace the cable and housing in 20 to 30 minutes.
Check that all cable bolts are tight where the cable attaches to the brake or derailleur. A loose cable bolt will cause the brake or gear to slip under load. Tighten with an adjustable wrench or the correct size Allen wrench.
Cleaning your bike frame and components
Dirt and grime trap moisture and speed up rust and corrosion. Wash your bike every month or after riding in wet or muddy conditions. Use a soft brush and warm soapy water, not a high-pressure hose, which can force water into bearings and cables. Scrub the frame, wheels, and drivetrain gently, then rinse with a hose on low pressure and dry with a rag.
Pay special attention to the chain, derailleur, and brake calipers, where dirt accumulates fastest. After washing, explore a thin coat of bicycle polish or wax to the frame to protect the paint. Dry the chain and explore a light coat of lubricant to prevent rust.
When to take your bike to a shop
Some maintenance requires tools or skills that are difficult to learn at home. Wheel truing (straightening a bent wheel) requires a spoke wrench and a truing stand, and takes practice to do well. Bottom bracket and headset adjustments require special tools and knowledge of bearing play. If your wheels wobble side to side, your steering feels loose, or your pedals feel rough or grinding, take the bike to a shop rather than risk making the problem worse.
Plan on a professional tune-up once a year, especially if you ride regularly. A tune-up usually includes wheel truing, brake and gear adjustment, cable inspection, and bearing adjustment. The cost is typically 50 to 100 dollars, depending on the shop and how much adjustment is needed. This is much cheaper than replacing wheels or bearings because you ignored a small problem for months.
Frequently Asked Questions
How do I know if my chain is too stretched?
A stretched chain no longer meshes properly with your gears and will skip under load. Use a chain checker tool (about 10 dollars) to measure wear, or take the chain to a bike shop. If the chain is stretched, replace it before it damages your gears—a new chain costs 15 to 40 dollars, but a new chainring or cassette costs 50 to 150 dollars.
Can I use WD-40 on my chain?
No. WD-40 is a water displacer, not a lubricant, and will dry out your chain quickly. It also attracts dirt. Use only bicycle chain lubricant, which is designed to stay on the chain and protect against rust and wear.
What should I do if my brakes feel spongy?
Spongy brakes usually mean air is trapped in the brake line or the cable is stretched. Squeeze the brake lever repeatedly to push air out, or have a bike shop bleed the brakes if you have hydraulic brakes. Cable-operated brakes may just need the cable tightened at the brake arm.
How often should I replace my tires?
Tires last 1,000 to 3,000 miles depending on riding style, road surface, and tire quality. Check the tread and sidewalls monthly—replace the tire if the tread is worn smooth or the sidewall is cracked or bulging, even if you have not reached the mileage estimate.
Do I need to remove the chain to clean it?
No. You can clean the chain while it is on the bike by wiping it with a rag and pedaling backward. Removing the chain is only necessary if you need to replace it or if it is so dirty that wiping does not help. If you do remove it, use a chain tool to break the link and rejoin it afterward.