Buying a used bike can be a great way to save money and find a style that suits your needs — whether that’s a commuter, mountain bike, road racer or touring model. Taking a few careful steps before purchasing can help you avoid problems later.
Please note: This guide does not constitute legal advice. Any information provided here should not be construed as legal advice or legal interpretation. DoneDeal does not accept any liability for any loss caused by reliance on this guide.
Before You Buy
Before committing to a purchase:
Identify your needs: commuting, leisure riding, off-road trails or long-distance touring.
Set a realistic budget, factoring in potential repairs, servicing and accessories.
Compare prices for similar makes and models.
Trust your instincts — if the price or seller’s explanation seems questionable, walk away.
Only buy from sellers you trust. If a bike’s serial number is missing, scratched off or painted over, this may indicate it has been stolen. Report suspicious listings to Gardaí or DoneDeal Support.
Basic Safety Checks
Always test ride the bike before buying.
Brakes
Pads should not be worn down.
Pads should not rub against the tyre.
Cables should not be frayed or sticking.
Wheels should spin freely.
Gears and Chain
Gears should shift smoothly.
The chain should be clean and free from rust.
There should be no skipping while pedalling.
Frame and Wheels
Check for cracks, dents or rust on the frame.
Ensure spokes are intact.
Wheels should not be buckled or warped.
Tyres and Saddle
Tyres should not be cracked or excessively worn.
The saddle should be firm and secure.
The height should be adjustable and comfortable.
Size and Fit
A properly sized bike is essential for comfort and safety.
When standing over the crossbar, allow 1–2 inches of clearance.
Your knees should have a slight bend at the bottom of each pedal stroke.
Handlebars should allow a relaxed bend in your elbows.
If unsure, a local bike shop can help determine the correct size.
Types of Bikes
Road / Racing Bikes
Lightweight and fast, designed for smooth roads.
Check frame weight and handlebar comfort.
Touring Bikes
Built for long distances and carrying luggage.
Look for rack mounts, strong brakes and durable tyres.
Mountain Bikes
Designed for off-road trails.
Test suspension and check frame strength.
Hybrid / Commuter Bikes
Ideal for everyday use.
Check for mudguard fittings, light mounts and pannier compatibility.
Folding Bikes
Compact and portable.
Fold and unfold the bike yourself to test hinges and locking systems.
Children’s Bikes
Ensure correct sizing and safe brake reach.
The child should be able to place both feet on the ground when seated.
Gear and Accessories
Helmets
Must fit snugly.
Should carry a CE safety mark.
Avoid damaged or cracked helmets.
Locks
Use a solid U-lock or D-lock rather than a cable lock. Consider double locking in high-risk areas.
Additional Accessories
Check panniers, lights and clothing for wear and damage.
Register your bike at BikeRegister.ie to help trace it if lost or stolen.
Transporting Your Bike
If collecting or transporting by car:
Ensure rack compatibility before purchase.
Check that all straps and mounts are secure.
For roof racks, be mindful of height restrictions.
Quick Buyer Checklist
Before completing the sale:
Test ride the bike.
Inspect brakes, gears and frame condition.
Verify serial number and seller credibility.
Confirm correct size and fit.
Plan secure transport and storage.
Final Advice
Take your time and inspect carefully before paying. A well-maintained bike can last for years, but skipping checks may result in unexpected costs.
For further cycling safety advice, you may find resources from the Dublin Cycling Campaign helpful, as they contributed to safety guidance for this guide.
Contact Us
If you have any further questions or would like to chat, please reach out to our Customer Support team.