Used Bike Checklist: 15 Things to Check Before Handing Over Cash

By Mike · Updated 13 July 2026

Print this, take it with you, and work through it in order. The order matters: the first five items are the walk-away checks. If any of them fail, stop, because nothing later on the list can rescue a bad frame or a stolen bike. Everything after that is about knowing what the bike will cost you, so you can negotiate with facts.

The walk-away checks

1. Frame integrity. Cracks, soft spots, dents or bubbled paint, especially on the top tube, the underside of the down tube, the chainstays and around the bottom bracket. On carbon, do the tap-and-press test from our carbon frame inspection guide. Any structural doubt: walk.

2. Fork and steerer. Look at the fork crown and where the fork enters the frame. Turn the bars lock to lock feeling for notchiness. Crash damage here is a hard no.

3. Serial number and provenance. Photograph the serial (under the bottom bracket), check theft registers, and ask for the original receipt. No serial, filed serial, or a story that keeps changing: walk.

4. Signs of crash or hidden repair. Fresh respray on one tube, mismatched paint, new bar tape plus scraped brake levers, bent derailleur hanger. One clue is a question; several together are an answer.

5. Size sanity check. Is this actually your size, or just a good price? If you do not know your size, sort that first. Here is how a bike fit before buying works.

The cost-of-ownership checks

6. Chain wear. Use a chain checker. Past 0.75 percent wear means a new chain. Past 1 percent usually means chain plus cassette, and possibly chainrings.

7. Cassette and chainring teeth. Shark-fin shaped teeth mean the drivetrain was ridden long past its service point. Budget a few hundred dollars.

8. Shifting. Run through every gear on a test ride, front and rear, under a bit of load. Hesitation may be a $0 cable adjustment or a worn derailleur. Note it either way.

9. Brakes. For discs: pad thickness, rotor wear lip, and any pulsing at the lever. For rim brakes: check the wheel's braking track is not concave, because a worn-out rim on a carbon wheelset is a very expensive surprise.

10. Wheels. Spin each wheel: watch for wobble, listen for bearing rumble. Squeeze spokes in pairs for even tension. Check tyres for cracking and squared-off centres.

11. Bearings, headset and bottom bracket. Hold the front brake and rock the bike for headset play. Drop the chain off the chainrings and spin the cranks: they should turn smoothly and silently.

12. Seatpost moves. A seized carbon post in a carbon frame can be a workshop job to free. Check it un-clamps and moves before you buy.

13. Cockpit condition. Peel back a corner of the bar tape if you can. Corroded or scarred bars under fresh tape are a crash tell, and aluminium bars do corrode under sweat.

14. Test ride. Ten minutes minimum, out of the saddle, both brakes hard, every gear. Creaks, clicks and pulls to one side all go on your negotiation list.

15. The paperwork. Original receipt, service records, spare parts (tubeless valves, spacers, second wheelset?). A documented bike is worth paying more for, and an undocumented one should be priced like it.

Turning the checklist into a price

Everything from item 6 onward is money: add up the work the bike needs, get a rough quote if you are unsure, and subtract it from the asking price. Sellers respond far better to "it needs a chain, cassette and tyres, that is about $X" than to "will you take less?"

If you would rather buy a bike where all fifteen boxes are already ticked in a full workshop inspection, that is exactly what our pre-owned range is. And if you are selling to upgrade, we buy quality road bikes too: one conversation covers both sides.

Frequently asked questions

What tools should I bring to inspect a used bike?

A chain wear checker (under $20), a small torch, and your phone for photographing the serial number. Everything else on the checklist uses your hands and eyes.

How do I check if a second-hand bike is stolen in Australia?

Photograph the serial number (usually under the bottom bracket) and check it against bike theft registers and stolen-bike groups before paying. Ask for proof of purchase, and be cautious with sellers who will not meet at their home address or whose price is far below market.

How many kilometres is too many for a used road bike?

There is no magic number. A 20,000 km bike that was serviced regularly can be in better shape than a 5,000 km bike that lived outside. That is why the checklist focuses on wear you can measure (chain, cassette, brake tracks) rather than the odometer claim.

Mike, Owner of MKP Bikes in Cheltenham, Melbourne.