# Where is the frame number on a Cotic bike?

Canonical: https://www.cyclesite.co.uk/trust/frame-numbers/cotic
Last reviewed: 2026-08-05

**Quick answer:** The frame number on a Cotic is usually stamped underneath the bottom bracket. Steel holds a stamp well, so if you cannot read it, clean off the mud and grease and try again with a torch before concluding it is gone.

On a Cotic, check underneath the bottom bracket first, then the rear dropouts and the underside of the down tube. Cotic builds steel mountain bikes from the Peak District, and steel takes a deeper stamp than carbon, so the number should still be readable even on a well-used frame once you clean the area.

## Start under the bottom bracket.

This is the most common place to find a Cotic 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 Cotic registration email or paperwork.
- With the Cotic dealer that sold the bike.

## What a Cotic frame number looks like

A unique alphanumeric code stamped into the steel frame. Cotic does not publish a public serial format, so record the complete code rather than looking for a pattern.

### Not the frame number

- Cotic Soul
- Cotic BFe
- Cotic Rocket
- Cotic SolarisMax
- Cotic Cascade
- Reynolds tubing decal
- Frame size
- Shock serial number
- Fork serial number

## Buying a used Cotic

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 Cotic 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 Cotic can be a brilliant buy, but the frame number is the detail that protects you.

## Frequently asked questions

### Is a Cotic 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 Cotic bikes have a frame number?

Most Cotic 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.

### What if the Cotic 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 Cotic 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 Cotic bike in the UK?

Find the frame number using the locations described above, then record it against your Cotic. 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 Cotic is worth: https://www.cyclesite.co.uk/value/cotic
- Stolen Cotic bikes: how to check one before you buy: https://www.cyclesite.co.uk/stolen-bikes/guide/stolen-bikes-by-brand-cotic
- Used Cotic prices by model: https://www.cyclesite.co.uk/value/cotic
- Frame numbers for other brands: https://www.cyclesite.co.uk/trust/frame-numbers

Source: Cyclesite editorial, reviewed 2026-08-05. HTML version: https://www.cyclesite.co.uk/trust/frame-numbers/cotic