A bicycle tune-up is a systematic inspection and adjustment of every moving part on your bike, from brakes and gears to wheels, bearings, and fasteners. A basic tune-up at a shop typically costs $50 to $100, while a comprehensive service runs $150 to $300 or more depending on how deep the work goes. What’s actually included varies by service tier, but the core goal is always the same: make the bike shift cleanly, stop reliably, and roll smoothly.
What a Basic Tune-Up Covers
A basic tune-up handles the essentials that keep your bike safe and functional. It usually starts with a wash and drivetrain degreasing to remove built-up grime from your chain, cassette, and chainrings. From there, the mechanic works through a checklist that touches nearly every system on the bike.
The core tasks include:
- Brake adjustment: Checking pad alignment, cable tension, and overall stopping power for both rim and disc brake systems. Brake pads are inspected and flagged for replacement if the pad material is thinner than about 1.5 mm.
- Derailleur adjustment: Dialing in your front and rear derailleurs so you get clean, crisp shifts across the full gear range. This includes inspecting cables and replacing them if they’re frayed or corroded.
- Chain lubrication and inspection: Not just oiling the chain, but checking for wear. A chain stretches over time, and if it stretches too far it grinds down your cassette and chainrings. On an 11-speed or higher drivetrain, the chain should be replaced at 0.5% elongation. For 10-speed systems and below, the threshold is 0.75%. Single-speed bikes get more leeway at 1.0%.
- Tire inflation and inspection: Pumping tires to the correct pressure and examining tread for wear patterns, cuts, or embedded debris that could cause flats.
- Wheel truing: Minor corrections to eliminate wobble. A well-trued wheel has less than about 1 mm of lateral deviation, roughly the thickness of 10 sheets of printer paper.
- Bolt check: Every fastener on the bike is checked and tightened to the manufacturer’s torque specifications. Crank bolts, for example, are typically torqued to 12 to 14 Newton-meters. Over-tightening carbon components can crack them, and under-tightening safety-critical bolts like stem or seatpost clamps can lead to sudden failure.
- Bearing inspection: The headset (steering bearings) and hubs (wheel bearings) are checked for smoothness and play.
What a Comprehensive Service Adds
A comprehensive or “major” tune-up builds on the basic service but goes deeper into the drivetrain and bearings. Instead of cleaning the chain and cassette in place, the mechanic removes the entire drivetrain for thorough cleaning or replacement. This is where worn chains, cassettes, and chainrings typically get swapped out rather than just flagged.
The bottom bracket, the bearing assembly that your pedal cranks spin around, gets a full service. On a basic tune-up this might just be inspected for play or roughness. On a comprehensive service, it’s pulled apart, cleaned, regreased, and reassembled (or replaced if worn). The same goes for wheel hubs, which may be opened, cleaned, and repacked with fresh grease.
If your bike has hydraulic disc brakes, a major tune-up often includes bleeding the brake lines. Over time, small air bubbles work into the hydraulic fluid and make your brake lever feel spongy or require too much pull before the pads engage. Bleeding pushes fresh fluid through the system and removes those air pockets, restoring firm, responsive braking.
Drivetrain Adjustment in Detail
Derailleur adjustment is one of the most noticeable parts of a tune-up because it directly affects how your bike shifts. The process starts with a visual check of the derailleur hanger, the small metal piece that attaches the rear derailleur to the frame. If the hanger is bent even slightly, no amount of cable adjustment will produce clean shifts, so it needs to be straightened first.
From there, the mechanic sets the limit screws. These are small screws on the derailleur that prevent the chain from jumping off the smallest or largest gear and into the spokes or frame. The high-limit screw is tightened until the derailleur sits directly below the smallest cog, then fine-tuned until there’s no rubbing noise. The low-limit screw does the same job on the other end of the cassette.
Once the limits are set, the mechanic adjusts cable tension using the barrel adjuster. This is the indexing process, lining up the derailleur’s guide pulley with each cog so that one click of the shifter produces exactly one gear change. Even small amounts of cable stretch can throw indexing off, which is why shifting tends to deteriorate gradually between tune-ups.
How Often You Need a Tune-Up
The right schedule depends on how much you ride. A common framework breaks maintenance into three tiers: monthly checks (or every 500 miles), a mid-level service every six months (or 2,500 miles), and a full overhaul annually (or every 6,000 miles).
Monthly checks are things you can handle at home: tire pressure, chain lube, a quick brake and shift test. The six-month interval is where a basic shop tune-up fits well, catching cable stretch, brake pad wear, and minor wheel trueness issues before they become bigger problems. The annual service is the comprehensive one, where bearings get repacked, the drivetrain gets a deep clean or replacement, and every system is brought back to like-new condition.
If you ride in rain, mud, or salt regularly, compress those timelines. Wet and dirty conditions accelerate chain wear, corrode cables, and contaminate brake pads and bearings much faster than dry riding.
What Happens After the Work Is Done
A good shop finishes every tune-up with a test ride or at minimum a stand check, spinning the wheels and running through every gear combination while checking for noise, hesitation, or rubbing. Brakes are tested for lever feel and stopping power. On hydraulic systems, the lever should feel firm and engage well before reaching the handlebar. If it feels mushy or has too much travel, the system needs further bleeding.
The mechanic also listens for clicking, creaking, or grinding that could indicate a loose bottom bracket, improperly seated pedal, or bearing issue that wasn’t obvious during the static inspection. Shifting is checked under load by applying resistance to the pedals while clicking through gears, since a derailleur that indexes perfectly on a stand can still skip under the force of actual pedaling.
Basic vs. Comprehensive: Which One Do You Need
If your bike has been sitting in the garage over winter or you’ve been riding regularly and notice sluggish shifting or squeaky brakes, a basic tune-up in the $50 to $100 range will likely solve your problems. It covers the adjustments and inspections that address the most common complaints.
A comprehensive service makes more sense if you’ve put serious miles on the bike without professional attention, if components feel loose or worn, or if you’re prepping for a long tour or event. It’s also the right call if your chain has stretched past replacement thresholds, since a worn chain damages your cassette and chainrings, and catching it early saves you from replacing all three at once. If you’re unsure, most shops will inspect the bike and recommend the appropriate level of service before starting work.