Short answer: how often you should service your bike depends on how many hours you ride, not just on the calendar. The bike maker Trek says "most bikes need service for every 25 hours of riding time." If you ride a few hours a week, that works out to a shop service every couple of months. If you ride twenty miles a month, you may never reach 25 hours in a season, and time becomes the limit instead: once a year is a sensible floor, plus a short check before every ride that you can do yourself.
The trouble with most service advice is that it is written for one kind of rider. Here is how to work out which kind you are.
How Often Should I Service My Bike? Why One Rule Fails
Search for this question and you will mostly find bike shop pages. They are honest, but they tend to give one rule, often a service every few months and at least once a year, for everyone. A daily commuter riding through winter and someone who takes a bike to the park twice a month get the same advice.
The two riders wear their bikes out in different ways:
- Heavy use wears parts. Chains, gears, brake pads and tires wear in proportion to how far and how hard you ride, and how much grit and water they meet.
- Light use ages parts. A bike that sits still still loses tire pressure, its chain lube dries and collects dust, rubber slowly perishes, and cables can stiffen. None of that cares how few miles you did.
So the useful question is not "how often" in the abstract. It is: which of those two clocks runs out first for you?
Step One: Turn Your Riding Into Hours
Riding time is the measure Trek uses, and it is easier to track than miles if you do not have a bike computer. Trek's own page on why bikes need service (read September 27, 2026) gives the 25-hour guideline and a worked example: "if you ride about three hours each week, you should get your bike serviced every two months."
Treat that as one manufacturer's guideline, not a law of physics. It is a round figure meant to cover most bikes, and it comes from a company that also runs service departments. It is still a far better starting point than a flat calendar rule, because it scales with how much you ride.
To use it, estimate your riding time for a typical month. If you are not sure, time your rides for two or three weeks and multiply.
Using the 25-hour guideline as the yardstick:
| Your riding | Roughly how long to reach 25 hours | What that suggests |
|---|---|---|
| Daily commute, several hours a week | A couple of months | Service on a regular rhythm through the year |
| Weekend rides, two or three hours a week | Two to three months | A service each season you ride |
| A ride or two a month, an hour or so each | More than a year | Time-based: at least once a year |
| Bike barely used this year | Never, by hours | Service before you start riding again |
Those middle columns are arithmetic from Trek's figure, not separate recommendations. Your own shop may suggest a different rhythm for your bike.
The twenty-miles-a-month rider
If you ride about twenty miles a month at an easy pace, you are probably riding somewhere around two hours a month, depending on your speed. At that rate, the 25-hour guideline would take roughly a year to reach. You are a calendar rider. One service a year, timed before the season you ride most, is a reasonable plan, and the checks further down matter more to you than the hour count does.
Step Two: Adjust for Where and How You Ride
Hours are a baseline. Some conditions make parts wear faster per hour:
- Rain and wet roads. Water carries grit into the chain and washes lube off. Brakes wear faster in wet, gritty conditions.
- Winter roads. Road salt and slush are hard on chains, cables and bolts. Riders who carry on through winter often add a service at the end of the season.
- Dirt, gravel and trails. Dust and mud get everywhere. Mountain and gravel bikes usually need attention sooner than a road or hybrid bike ridden on clean pavement.
- Suspension. Forks and shocks have their own service intervals set by their makers, often by riding hours. Check the manual for yours rather than relying on the bike's general service rhythm.
- E-bikes. Extra weight and motor torque tend to wear chains, gears and brakes faster. Follow the e-bike maker's schedule as well as general bike advice.
If most of your riding is dry, flat and on pavement, you can lean toward the lighter end of your range.
Step Three: Service When the Bike Tells You
Some signs mean book a service now, whatever your schedule says:
- Brakes that feel weaker, squeal on dry days or pull the lever closer to the bar.
- Gears that skip, hesitate or shift on their own.
- New creaks, clicks or grinding that were not there before.
- A wheel that wobbles or rubs the brake.
- Any crash, fall or knock, even if the bike looks fine.
- A used bike you have just bought, before you rely on it.
Worn parts cost more the longer they run. A worn chain, for example, wears the gears it runs on, which is why catching it early is cheaper. Our guide to what a worn drivetrain costs explains how that happens.
What You Can Do Between Services
A shop service is not the only care a bike needs. The checks below cover most of what goes wrong between visits and need no special skill.
Before every ride. The League of American Bicyclists teaches a short pre-ride routine in its Basic Bike Check (read September 27, 2026). It includes "be sure you have enough air in your tires," "look to see that your brake pads are not worn," and "look to see that the chain is not rusted and it is free of gunk." Add a squeeze of each brake lever and a glance at the levers or axle nuts that hold the wheels on.
Every few weeks, or after a wet ride. Wipe the chain and add bike chain lube, then wipe off the excess. General-purpose sprays are not a substitute for chain lube. Keep all lube away from the brakes, especially disc brake rotors.
Now and then. Look at your tires for cuts, cracks and worn patches. Check that nothing rattles when you lift the bike and drop it gently a short distance onto its wheels.
None of this replaces a mechanic looking at bearings, cables, wheel true and bolt tightness. It does mean fewer surprises between visits.
Who Services a Bike You Bought Online?
If you bought your bike from a shop, the shop that sold it is the obvious first call, and some shops include a follow-up adjustment after the first weeks of riding, because new cables settle. Ask whether yours does.
If you bought online, you will be finding a shop that did not sell you the bike. Most will still work on it, but it is worth knowing that before you need them. Our look at direct-to-consumer bike brands and who fixes them later covers what to expect. And if you are budgeting for your first year of riding, service belongs in that sum; our breakdown of what a first bike actually costs, all in includes it.
What to Ask For When You Book
"A service" can mean anything from a check and adjustment to a full strip-down and rebuild. Trek's page describes the range as everything from "cleaning and lubricating your bike's moving parts to completely breaking your bike down and rebuilding it." When you book, say:
- Roughly how much you ride and where.
- Anything you have noticed, such as a noise, a skip or soft brakes.
- When the bike was last serviced, if you know.
- That you would like to hear about anything worn before they replace it.
Our guide on what to ask at a bike shop the first time has more questions worth bringing.
The Honest Limits of Any Schedule
No interval, ours or a shop's, can see your bike. A light rider who stores the bike outside in the rain may need more care than a heavier rider with a dry garage. A service schedule is a reminder to have someone look, not a guarantee nothing will wear out in between. The pre-ride check is what catches the problem that shows up on a Tuesday.
FAQ
How often should a bike be serviced if I barely ride it?
Time matters more than distance for a lightly used bike. Tires lose pressure, lube dries and rubber ages whether you ride or not. A service at least once a year, before the season you ride most, is a sensible floor, plus a check before each ride.
Is 25 hours of riding a standard service interval?
It is Trek's published guideline, not an industry standard. Trek says most bikes need service for every 25 hours of riding time. Other makers and shops use different rhythms, and suspension parts have their own intervals.
Does an e-bike need servicing more often?
Often, yes. Extra weight and motor power tend to wear chains, gears and brakes faster. Follow the e-bike maker's service schedule for the motor and battery system as well as general bike care.
What should I check on my bike myself?
Before each ride, check tire pressure, squeeze both brakes, look at the brake pads and check that the chain is clean and not rusty. The League of American Bicyclists' Basic Bike Check covers these steps.
Should a new bike get a service soon after purchase?
Some shops offer a follow-up adjustment after the first weeks of riding, because new cables stretch and settle. Ask the shop that sold the bike whether a first check is included.
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