# Where is the frame number on a Whyte bike?

Canonical: https://www.cyclesite.co.uk/trust/frame-numbers/whyte
Last reviewed: 2026-06-11

**Quick answer:** The frame number on a Whyte bike is usually underneath the bottom bracket shell. Some newer Whyte bikes have it on the underside of the lower down tube. On Whyte eMTBs, it is stamped inside the down tube battery housing, behind the battery cover.

Whyte gives clear guidance on where to find the frame number. It is usually on the underside of the bottom bracket shell, and on some newer Whyte models it is on the underside of the lower section of the down tube. For Whyte eMTBs, the frame number is stamped inside the down tube battery housing, so the battery cover needs to be removed carefully to see it.

## Start under the bottom bracket.

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

## What a Whyte frame number looks like

Whyte does not publish a single universal serial prefix, so use the full frame number shown on the bike rather than relying on a guessed prefix. The key is location: on non-electric Whyte bikes, check the bottom bracket and lower down tube; on eMTBs, check inside the down tube battery housing.

### Not the frame number

- Whyte 901
- Whyte 905
- Whyte 909
- Whyte T-140
- Whyte T-160
- Whyte E-160
- Whyte E-180
- Whyte G-160
- Whyte Gisburn
- Whyte Friston
- Whyte Portobello
- 27.5 inch
- 29 inch
- Bosch motor number
- Battery serial number
- Fork serial number
- Shimano component code
- SRAM component code
- Frame size sticker
- QR code label unless confirmed by paperwork

## Whyte eMTBs: look inside the battery housing

The eMTB location is the important Whyte-specific detail. On Whyte electric mountain bikes the frame number can be inside the down tube battery housing, so a quick look under the bike may not be enough.

If you are buying a used Whyte eMTB, ask the seller to show the frame number clearly, not just the motor or battery number.

## Buying a used Whyte

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

## Frequently asked questions

### Where is the frame number on a Whyte 901?

Check underneath the bottom bracket shell first. If it is not there, check the lower down tube.

### Where is the frame number on a Whyte 905?

Start underneath the bottom bracket shell. Clean the underside before reading the number.

### Where is the frame number on a Whyte T-140?

Check the underside of the bottom bracket shell first, then the underside of the lower down tube.

### Where is the frame number on a Whyte T-160?

Start at the bottom bracket shell. If it is not visible, check the lower down tube.

### Where is the frame number on a Whyte E-160?

On a Whyte E-160 eMTB, check inside the down tube battery housing. The battery cover needs careful removal.

### Where is the frame number on a Whyte E-180?

On a Whyte E-180 eMTB, the frame number should be checked inside the down tube battery housing, behind the battery cover.

### Is the Bosch motor number the same as the Whyte frame number?

No. The e-bike motor and battery numbers are separate. Use the Whyte frame number for stolen-bike checks and proof of ownership.

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

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

Source: Cyclesite editorial, reviewed 2026-06-11. HTML version: https://www.cyclesite.co.uk/trust/frame-numbers/whyte