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.
That number matters. It helps you register the bike, check if it has been reported stolen, prove ownership, value it and sell it with more buyer confidence. Here is where to find it, how to read it, and how to check it before you buy.
Check a Whyte frame number
Free, instant, no signup. Enter the number stamped on the frame to check it against the UK stolen-bike databases.
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.
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.
- Put the bike somewhere safe and well lit.
- Turn it upside down carefully, or place it in a workstand.
- Look underneath the frame where the cranks meet the bike.
- Wipe away mud, grease or road dirt.
- Use a phone torch if the number is hard to read.
- Take a clear photo before typing the number into a checker.
Make sure you copy the full number. A single missing or misread character can give the wrong result.
Can’t find it underneath the bike?
If the number is not under the bottom bracket, check these places next:
- 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.
On older bikes, repainted frames and heavily used bikes, the number can be harder to read. If it has been scratched off, covered, filed down or looks tampered with, treat that as a serious warning sign.
What does a Whyte frame number look 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.
Do not use the model name, tyre size, barcode on a shop label, or any number printed on a component. The frame number belongs to the bike frame itself. For example, these are not usually 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
The number you want is the unique frame code that belongs to the frame itself.
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.
The detail that protects you.
A frame number is one of the most useful details on a used bike. It connects a Whyte to its owner, its registration record and any stolen-bike reports.
You may need it to:
- Check if a Whyte bike has been reported stolen.
- Register your bike.
- Sell your bike with confidence.
- Get an accurate bike valuation.
- Make an insurance claim.
- Report a stolen bike to the police.
- Prove the bike is yours.
If you own a Whyte, take a photo of the frame number and keep it with your receipt. If the bike is ever stolen, that detail can make a real difference.
Buying a used Whyte? Check the frame number first.
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.
Red flag. Be careful if the seller refuses to show the frame number, says they cannot find it, gives only a partial code, or pressures you to pay quickly. A genuine seller should understand why you are checking.
Check a Whyte frame number on Cyclesite
Found the number? Run a free stolen-bike check before you buy. Enter the Whyte frame number into the checker and look for any matching reports. It only takes a moment, and it can help you avoid buying a bike with a bad history. If the bike looks clear, you can also value it and compare similar Whyte bikes for sale.
What to do if your Whyte has been stolen.
Report it as soon as possible. You will usually need the frame number, photos, make, model, colour, size, location and any unique marks or upgrades.
- Report the theft to the police.
- Get a crime reference number.
- Add the bike to stolen-bike databases.
- Update any existing bike registration record.
- Contact your insurer if you have cover.
- Watch used bike listings for matching bikes.
- Keep photos, receipts and messages in one place.
Include anything distinctive, such as upgraded wheels, unusual tyres, scratches, stickers, lights, mudguards, racks or replacement parts. The more detail you provide, the easier it is to identify the bike if it appears for sale.
Whyte frame number FAQs
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.
Looking for another brand? See the full bike frame number guide.
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.
Frame numbers by brand
Trek · Specialized · Giant · Carrera · Brompton · Cube · Boardman · Cannondale · Canyon · Ribble · Orbea · SCOTT · Raleigh · Merida · Bianchi · Pinarello · FOCUS · Liv · Santa Cruz · Colnago · Cervélo · Wilier · Tern · TENWAYS · Gazelle · Riese & Müller · Rad Power · VanMoof · Cowboy · Haibike · Kalkhoff · Lapierre · Marin · GT · Kona · Genesis · Planet X · Pashley · Moustache · Decathlon · Volt · Serial 1 · ROSE · Kinesis · Surly · Salsa · Voodoo · Vitus · Pinnacle · Calibre · Saracen · Frog · BMC
Register your bike
Register on a UK stolen-bike database for police-searchable protection.
Editorial standards
Last reviewed by the Cyclesite editorial team. Published by Cyclesite, Companies House No. 13238473.