You’re shopping for a bike and you see some listed as “single-speed” and others with “7-speed,” “21-speed,” or “11-speed.”
And you’re thinking: do I really need gears? What’s the point of a single-speed bike? Are more gears always better? Will I actually use all those gears?
Here’s the truth: both types of bikes have their place. Single-speeds aren’t just for hipsters, and multi-speed bikes aren’t unnecessarily complicated. The right choice depends entirely on where you’ll ride and what you value.
This guide breaks down the real differences between single-speed and geared bikes—what they’re good at, what they’re terrible at, and who should buy each one.
By the end, you’ll know exactly which type makes sense for your riding.
The Quick Answer
Here’s the TL;DR:
Single-Speed Bikes:
- One gear ratio (no shifting)
- Simple, lightweight, low maintenance
- Great for flat terrain and short rides
- Terrible for hills
- Perfect for urban commuting in flat cities
Multi-Speed Bikes:
- Multiple gears (7-30+ depending on setup)
- More complex, slightly heavier
- Handle varied terrain (hills, flats, headwinds)
- Require occasional maintenance (cables, derailleurs)
- Better for most riders in most places
Still need details? Let’s break it down.
What Is a Single-Speed Bike?
A single-speed bike has one gear. That’s it. No shifting, no derailleurs, no cables.
How It Works:
One chainring in front, one cog in back. The chain connects them. When you pedal, the bike moves. Simple.
The gear ratio is fixed. You can’t change it while riding.
Two Types of Single-Speed:
Freewheel:
You can coast (pedal backward without the pedals spinning). This is what most single-speed bikes use.
Fixed Gear (Fixie):
The pedals are directly connected to the rear wheel. You can’t coast—if the wheel is moving, the pedals are moving.
We’re mostly talking about freewheel single-speeds in this guide. Fixed gear bikes are a niche thing with their own culture.
Single-Speed Bikes: The Pros
Let’s talk about what single-speeds do well.
Simple and Low Maintenance
No derailleurs to adjust. No cables to replace. No shifters to break.
The drivetrain is dead simple:
- Chain
- Chainring
- Cog
- Done
What maintenance looks like:
Clean and lube the chain occasionally. That’s basically it.
No cable stretch, no derailleur alignment issues, no “my gears aren’t shifting right.”
For people who hate bike maintenance or want a bike that just works, this is a huge advantage.
Lightweight
Fewer parts = less weight.
A single-speed bike is typically 2-5 lbs lighter than a comparable geared bike.
Why this matters:
Lighter bikes are easier to carry up stairs, easier to accelerate, and easier to maneuver.
Cheaper
Without derailleurs, shifters, cables, and multiple gears, single-speed bikes cost less to manufacture.
You can get a decent single-speed for $300-500. A comparable multi-speed might be $500-800.
Clean Aesthetic
No cables running along the frame. No bulky derailleurs. Just clean lines.
Some people love the minimalist look.
Teaches Better Pedaling Technique
On a geared bike, you can shift to an easier gear when things get hard. On a single-speed, you have to push through.
This forces you to:
- Maintain momentum
- Plan ahead (build speed before hills)
- Develop stronger legs
Some riders swear that single-speed riding makes them better cyclists overall.
Single-Speed Bikes: The Cons
Now let’s talk about the problems.
Hills Suck
This is the big one.
On a single-speed, you have one gear. If that gear is too hard for a hill, too bad. You’re grinding your way up slowly, or you’re walking.
Steep hills become miserable.
If you live in a hilly area, a single-speed is a bad choice.
Limited Terrain
Single-speeds are optimized for one type of riding: flat, urban commuting.
They struggle with:
- Hills (as mentioned)
- Headwinds (can’t shift to an easier gear)
- Long distances (you can’t fine-tune your effort level)
- Varied terrain (too hard in some situations, too easy in others)
Inefficient in Some Situations
Too easy: On descents or with tailwinds, you’ll “spin out” (pedal uselessly fast without going faster).
Too hard: On climbs or into headwinds, you’ll grind slow and inefficiently.
A geared bike lets you find the right gear for every situation. A single-speed doesn’t.
Less Forgiving for Beginners
If you’re out of shape or new to cycling, a single-speed is harder to ride.
With gears: You can shift to an easier gear when you’re tired.
Without gears: You just suffer.
Multi-Speed Bikes: The Pros
Now let’s look at what geared bikes do well.
Handle Hills and Varied Terrain
This is the main reason gears exist.
With gears, you can:
- Shift to an easier gear for climbing
- Shift to a harder gear for speed on flats
- Adjust for headwinds, tailwinds, and fatigue
You’re in control. The terrain doesn’t dictate your ride.
More Efficient
With the right gear, you can maintain an optimal cadence (pedaling speed) in all conditions.
This means:
- Less energy wasted
- You can ride longer without getting tired
- You can go faster with the same effort
Versatile
Multi-speed bikes handle:
- Commuting
- Long rides
- Touring
- Mountain biking
- Everything
One bike, any terrain.
Easier for Beginners and Casual Riders
Gears make biking easier. When you’re tired or hitting a hill, shift down. Instant relief.
This lowers the barrier to entry for people who aren’t in great shape.
Better for Long Distances
On a 20-mile ride, you’ll hit hills, flats, wind, and fatigue. Gears let you adapt to all of it.
A single-speed on a 20-mile ride? You’re stuck in one gear the whole time. That gets old.
Multi-Speed Bikes: The Cons
But geared bikes aren’t perfect either.
More Maintenance
Things that need attention:
- Cables stretch over time (require adjustment)
- Derailleurs need alignment
- Shifters can break
- More parts = more things that can go wrong
Most of this is minor (cable adjustments are easy), but it’s more than a single-speed requires.
Heavier
Derailleurs, shifters, cables, and extra cogs add weight.
A geared bike is typically 2-5 lbs heavier than a comparable single-speed.
For most people, this doesn’t matter. But if you’re carrying your bike up stairs daily, it’s noticeable.
More Expensive
More parts = higher cost.
A decent geared bike costs $500-800. A single-speed might be $300-500 for similar quality.
Slightly More Complex
You have to learn to shift.
It’s not hard, but it’s one more thing to think about. Some people find it annoying.
Head-to-Head Comparison
Let’s put them side-by-side:
| Feature | Single-Speed | Multi-Speed |
|---|---|---|
| Maintenance | Minimal (clean + lube chain) | Moderate (cables, derailleurs) |
| Weight | Light (2-5 lbs lighter) | Heavier |
| Cost | Cheaper ($300-500) | More expensive ($500-800+) |
| Hills | Terrible (you suffer or walk) | Great (shift to easier gear) |
| Flat Terrain | Excellent (simple and efficient) | Good (but you don’t need gears) |
| Versatility | Limited (flat urban only) | Excellent (any terrain) |
| Beginner-Friendly | No (harder to ride) | Yes (easier to ride) |
| Long Rides | Tiring (stuck in one gear) | Great (adapt to conditions) |
| Aesthetic | Clean, minimal | Functional (cables, derailleurs) |
Which One Should You Choose?
Still not sure? Here’s the decision tree:
Choose Single-Speed If:
- You live in a flat city (no hills)
- Your rides are short (under 5 miles)
- You value simplicity and low maintenance over versatility
- You’re riding on pavement only (urban commuting)
- You want a lightweight, cheap bike
- You don’t mind walking up occasional hills
Choose Multi-Speed If:
- You have any hills on your route
- You’re riding longer distances (10+ miles)
- You ride in varied terrain (mix of flats, hills, headwinds)
- You want versatility (one bike for everything)
- You’re a beginner or casual rider (gears make it easier)
- You value efficiency and adaptability
Can You Add Gears to a Single-Speed (or Remove Them)?
Can you convert a single-speed to multi-speed?
Technically yes, but it’s not practical.
You’d need:
- New rear wheel (with a cassette)
- Derailleur
- Shifter
- Cables
- Possibly a new chain
By the time you buy all that and pay for labor, you’ve spent more than buying a geared bike in the first place.
Better option: Sell the single-speed and buy a geared bike.
Can you convert a multi-speed to single-speed?
Yes, and it’s way easier.
You just:
- Remove the derailleur
- Remove the shifter and cables
- Replace the rear wheel or cassette with a single cog
- Shorten the chain
Some people do this to simplify their commuter bike or create a low-maintenance winter bike.
What About Internal Hub Gears?
There’s a third option: internal hub gears (like Shimano Nexus or Alfine).
What They Are:
The gears are hidden inside the rear hub instead of visible on the outside (like traditional derailleurs).
How They Compare:
Pros:
- Low maintenance (sealed system, protected from dirt)
- Clean look (no visible derailleur)
- Can shift while stopped
- Smooth, reliable shifting
Cons:
- Heavier than derailleur systems
- More expensive
- Limited gear range (usually 3-8 speeds)
- Harder to repair if something breaks
Who They’re For:
- Commuters who want gears but hate maintenance
- Riders in dirty/wet conditions (gears are protected)
- City bikes and cargo bikes
They’re a great middle ground between single-speed simplicity and multi-speed versatility.
How Many Gears Do You Actually Need?
If you’re going with a multi-speed bike, how many gears should you get?
3-7 Speeds:
- Enough for moderate hills and varied terrain
- Simple to use (not overwhelming)
- Often internal hub gears
- Good for: Casual commuting, flat to moderate terrain
8-12 Speeds:
- Wide range for serious hills and varied riding
- Modern mountain bike and gravel bike standard
- Good for: Mountain biking, gravel riding, hilly areas
18-24 Speeds:
- Traditional road bike and mountain bike setups (2-3 chainrings in front)
- Lots of redundant gears (many overlap)
- Being phased out in favor of simpler 1x systems
- Good for: Older bikes, entry-level bikes
Real Talk:
Most people use 5-8 gears regularly and ignore the rest.
For commuting and casual riding, 7-10 speeds is plenty. You don’t need 30 gears.
Real-World Scenarios
Scenario 1: Flat City Commute (3 Miles Each Way)
Best choice: Single-speed
Why: No hills, short distance, simple and low-maintenance.
Scenario 2: Hilly City Commute (5 Miles Each Way)
Best choice: Multi-speed (7-10 speeds)
Why: You need gears for the hills. Single-speed would be miserable.
Scenario 3: Weekend Rides (10-20 Miles, Varied Terrain)
Best choice: Multi-speed (10-12 speeds)
Why: Long distance and varied terrain require adaptability.
Scenario 4: Urban Bike Messenger
Best choice: Single-speed (often fixed gear)
Why: Low maintenance, lightweight, simple. Most messengers work in flat cities.
Scenario 5: Mountain Biking
Best choice: Multi-speed (10-12 speeds)
Why: Trails have steep climbs, technical sections, and descents. You need gears.
Common Myths
Myth: “Single-speeds are only for hipsters”
Reality: Single-speeds make sense for flat urban riding. The minimalist aesthetic is a bonus, not the point.
Myth: “More gears = better bike”
Reality: More gears doesn’t mean better. A well-chosen 7-speed can outperform a poorly-designed 21-speed.
Myth: “You can ride a single-speed anywhere”
Reality: Physically possible? Yes. Enjoyable? No. Hills on a single-speed are brutal.
Myth: “Geared bikes are too complicated for beginners”
Reality: Shifting is easy to learn. Most beginners find gears make biking easier, not harder.
Final Thoughts
Single-speed vs. multi-speed isn’t about one being “better.”
Single-speeds are great for specific use cases:
Flat terrain, short rides, low maintenance, simplicity.
Multi-speed bikes are better for most people:
They handle varied terrain, long rides, and make cycling easier and more enjoyable.
Ask yourself:
- Do I have hills on my route?
- How far will I ride?
- Do I value simplicity or versatility?
Answer honestly, and the right choice becomes obvious.
If you have ANY hills, get gears. Trust me on this one.
