Converting a fixed gear bike to a single speed can be a great way to change up your riding experience and make your bike more versatile. Single speed bikes are simpler and easier to maintain than fixed gear bikes, making them a popular choice for urban commuters and casual riders.
Whether you’re looking to simplify your bike setup or just want to try something new, converting your fixed gear to a single speed is a relatively simple process that can be done with a few basic tools and some know-how.
In this article, we’ll walk you through the steps to convert your fixed gear bike to a single speed, including removing the fixed gear components, installing a single speed freewheel, and adjusting your chain tension for optimal performance.
Gather Necessary Tools
- Adjustable wrench
- Chain breaker tool
- 15mm wrench
- Allen wrench set
- Cable cutters
- Chain whip
- Lockring tool
- Cog remover tool
Remove Fixed Gear Components
To convert a fixed gear bike to single speed, you will first need to remove the components that are specific to a fixed gear setup.
Step 1: Remove the Fixed Gear Cog
Start by removing the fixed gear cog that is attached to the rear hub. Use a lockring tool and a chain whip to loosen the lockring and unscrew the cog from the hub.
Step 2: Remove the Fixed Gear Chain
Next, remove the fixed gear chain from the bike by breaking the chain using a chain tool. Make sure to keep the chain intact if you plan to reuse it for your single speed setup.
Install Single Speed Freewheel
1. Remove the fixed gear cog and lockring using a chain whip and lockring tool.
2. Thread the single speed freewheel onto the hub in the opposite direction of pedaling, ensuring it is securely tightened.
3. Insert spacers as needed to achieve proper chain alignment.
4. Install the rear wheel back onto the bike and adjust the chain tension using the rear wheel’s position in the dropouts.
5. Test the freewheel to ensure it spins freely when coasting and engages properly when pedaling.
6. Make any necessary adjustments to ensure smooth operation before taking your newly converted single speed bike for a test ride.
Adjust Chain Tension
To adjust the chain tension on your single speed bike, follow these steps:
- Loosen the rear wheel nuts with a wrench to allow movement of the wheel.
- Move the wheel back or forth to adjust chain tension. The chain should have a slight amount of sag but should not be too loose.
- Ensure the wheel is centered in the frame to prevent any issues with chain alignment.
- Tighten the rear wheel nuts securely to hold the wheel in place.
- Test the tension by spinning the pedals. The chain should move smoothly without any binding or skipping.
Tips for Chain Tension
- Regularly check and adjust chain tension to prolong the lifespan of your drivetrain components.
- If the chain tension is too loose, it can lead to chain derailment or premature wear. Too tight tension can cause excessive strain on the drivetrain.
- Consider using a chain tensioner device for easier adjustments and to maintain consistent tension over time.
Install New Chain
1. Remove the old chain by using a chain tool to push out one of the pins and separating the chain links.
2. Measure the length of the new chain against the old chain and use a chain tool to remove any excess links if needed.
3. Thread the new chain through the rear derailleur and around the cassette and chainring, making sure it is properly aligned.
4. Use the chain tool to press the pin back into place, ensuring it is secure and properly connected.
5. Test the new chain by shifting through the gears and adjusting the tension as needed.
Trim Excess Chain Length
To convert a fixed gear bike to a single speed, you’ll need to trim the excess chain length to ensure proper tension and alignment. Follow these steps:
- Start by removing the chain from the bike by using a chain tool to push out one of the pins.
- Determine how much excess chain length you need to remove by measuring the chain against the new single speed chainring and rear cog.
- Use a chain tool to remove the necessary links from the chain, ensuring that the chain ends with an inner and outer link to properly connect.
- Reconnect the chain using the chain tool to press the pin back in place, making sure it’s secure.
- Check the chain tension by rotating the cranks to ensure there’s no slack or binding. Adjust as needed.
Adjust Brake and Gear Cables
1. Start by loosening the cable bolt on the brake caliper or derailleur with a 5mm Allen key.
2. Adjust the tension of the cable by pulling it to tighten or loosening it as needed.
3. Once you have the desired tension, retighten the cable bolt securely.
4. Test the brakes or gears to ensure they are functioning properly.
5. Repeat the process on the other brake or gear if necessary.
Test Ride and Fine Tune
Once you have converted your fixed gear bike to a single speed, it’s important to take it for a test ride to ensure everything is working properly. Pay attention to how the bike feels and functions as you ride. If you notice any issues such as chain tension problems or gear skipping, you may need to fine tune your setup.
One way to fine tune your single speed bike is by adjusting the tension of the chain. Make sure the chain is properly aligned with the chainring and cog, and adjust the tension as needed. You can also experiment with different gear ratios to find the one that works best for your riding style.
Another aspect to consider during your test ride is the overall comfort and fit of the bike. Make sure the saddle height, handlebar position, and pedal placement are all dialed in to your liking. Small adjustments can make a big difference in how the bike feels while riding.
| Check chain tension |
| Adjust gear ratio |
| Ensure proper bike fit |
Consider Gear Ratio Options
When converting your fixed gear bike to a single speed, it’s important to consider the gear ratio options to ensure you have the appropriate pedaling resistance for your riding style and terrain.
| Gear Ratio | Description |
|---|---|
| High Gear Ratio | Ideal for flat terrain and fast riding, providing more speed with less effort. |
| Medium Gear Ratio | A versatile option suitable for a variety of terrains, offering a balance between speed and climbing ability. |
| Low Gear Ratio | Best for hilly terrain and steep climbs, allowing for easier pedaling at a slower pace. |
Experimenting with different gear ratios will help you find the perfect balance between speed and pedal efficiency for your single speed bike conversion.
Enjoy Your Newly Converted Single Speed Bike
Congratulations on successfully converting your fixed gear bike to a single speed! Now that you have made the switch, you can enjoy the simplicity and efficiency of riding a single speed bike.
With fewer moving parts and gear options to worry about, you can focus more on your ride and enjoy the feeling of pure cycling. Single speed bikes are known for their reliability and low maintenance, making them a great choice for urban commuting and casual rides.
Make sure to adjust the tension of your chain and check the brakes before taking your newly converted single speed bike out for a spin. Once you hit the road, you’ll appreciate the smooth and responsive ride that a single speed bike offers.
Whether you’re cruising through the city streets or tackling a hilly terrain, your single speed bike will provide you with a fun and exhilarating cycling experience. So get out there and enjoy the freedom and joy of riding your newly converted single speed bike!