# Where is the frame number on a BMC bike?

Canonical: https://www.cyclesite.co.uk/trust/frame-numbers/bmc
Last reviewed: 2026-07-02

**Quick answer:** The frame number on a BMC bike is usually underneath the bottom bracket, between the pedals. Look for a stamped code or a barcode sticker with a unique mix of letters and numbers, and copy the full serial exactly before you check or register the bike.

Most BMC bike frame numbers are found underneath the frame, near the bottom bracket, where the pedal cranks pass through the frame. BMC is a premium Swiss brand, so its bikes are valuable and worth checking carefully before buying used. Turn the bike carefully upside down and look between the pedals. The serial may be stamped into the frame or printed on a barcode sticker, depending on the model and frame material.

## Start under the bottom bracket.

This is the most common place to find a BMC frame number. It is the part of the frame between the pedals, on the underside.

1. Put the bike somewhere safe and well lit.
2. Turn it upside down carefully, or place it in a workstand.
3. Look underneath the frame where the cranks meet the bike.
4. Wipe away mud, grease or road dirt.
5. Use a phone torch if the number is hard to read.
6. Take a clear photo before typing the number into a checker.

### If it is not under the bottom bracket

- Near the rear dropouts, where the back wheel fits into the frame.
- Around the seat tube.
- On the underside of the down tube.
- Near the head tube at the front of the bike.
- On the original sales receipt.
- In your BMC registration email or paperwork.
- With the BMC dealer that sold the bike.

## What a BMC frame number looks like

A BMC frame number is normally a string of letters and numbers, either stamped into the underside of the bottom bracket area or printed on a barcode sticker. You need the full unique code, not the model name.

### Not the frame number

- BMC Teammachine
- BMC Roadmachine
- BMC Timemachine
- BMC Fourstroke
- BMC URS
- 700c
- 29 inch
- Shimano or SRAM component codes
- Wheel size markings
- Shop stock labels

## Buying a used BMC

A clean-looking bike is not always a safe buy. Before you pay, ask the seller for a clear photo of the frame number and check it against stolen-bike records. You should also ask for:

- The original receipt or proof of purchase.
- The seller’s name matching the receipt where possible.
- Clear photos of the bike from both sides.
- A photo of the frame number.
- Any service history.
- Details of upgrades or replacement parts.

## Bottom line

The quickest place to find a BMC frame number is underneath the bike, near the pedals. Look for a stamped code or barcode sticker, copy the full number, then check it before you buy, sell or register the bike. A used BMC can be a brilliant buy, but the frame number is the detail that protects you.

## Frequently asked questions

### Is a BMC frame number the same as a serial number?

Yes. Most people use frame number and serial number to mean the same thing. It is the unique identifying code attached to the bike frame.

### Do all BMC bikes have a frame number?

Most BMC bikes have a frame number or serial number. Check the locations described above first; on older frames the marking can be shallow or worn, so clean the area and check in good light before concluding it is missing.

### Where is the frame number on a BMC Teammachine?

On most BMC Teammachine road bikes, check underneath the bottom bracket first, the area between the pedals on the underside of the frame.

### Where is the frame number on a BMC Roadmachine?

On most BMC Roadmachine endurance bikes, look underneath the frame near the bottom bracket for a stamped code or barcode sticker.

### What if the BMC frame number has been removed?

Do not buy the bike. A removed or damaged frame number is a major red flag. It may make the bike harder to register, insure, resell or prove as yours.

### Can I check if a BMC bike is stolen by the frame number?

Yes. Use the frame number to run a stolen-bike check before buying. You should also ask the seller for proof of ownership and check that the details match the bike.

### How do I register a BMC bike in the UK?

Find the frame number using the locations described above, then record it against your BMC. It is free, and you need an account so we know where to send the alert. If that exact number is ever reported stolen to us, we email you. If anyone then lists a bike carrying it, the listing is hidden until the seller proves it is theirs.

## Related pages

- Free stolen-bike check: https://www.cyclesite.co.uk/stolen-bikes
- What a used BMC is worth: https://www.cyclesite.co.uk/value/bmc
- Stolen BMC bikes: how to check one before you buy: https://www.cyclesite.co.uk/stolen-bikes/guide/stolen-bikes-by-brand-bmc
- Used BMC prices by model: https://www.cyclesite.co.uk/value/bmc
- Frame numbers for other brands: https://www.cyclesite.co.uk/trust/frame-numbers

Source: Cyclesite editorial, reviewed 2026-07-02. HTML version: https://www.cyclesite.co.uk/trust/frame-numbers/bmc