Most Cube bike frame numbers are found underneath the bottom bracket, between the pedals. On some Cube hybrid and e-bike models, the number may sit on the seat tube area near the chainstay, between the chainstays, or tucked close to the motor. Cube frame numbers can be stamped into the frame, etched into carbon, or printed on a sticker depending on the model, year and frame material. If you are checking a used Cube, get a clear photo of the full number before you pay.
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 Cube 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 Cube bike is usually underneath the bottom bracket. On some Cube hybrid and electric models, check the seat tube area near the chainstay, between the chainstays, or near the motor. Look for a unique mix of letters and numbers on the frame itself.
Start under the bottom bracket.
This is the most common place to find a Cube 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 Cube registration email or paperwork.
- With the Cube 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 Cube frame number look like?
A Cube frame number is usually a unique alphanumeric code. Some owners report serials starting with W0W or WOW, but do not rely on a prefix alone, as the full code is what matters. On aluminium frames the number is often stamped into the frame; on carbon frames it may be etched or printed on a sticker; on e-bikes, do not confuse the frame number with the motor, battery or display number.
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:
- Cube Aim
- Cube Analog
- Cube Reaction
- Cube Reaction Hybrid
- Cube Stereo
- Cube Touring
- Cube Kathmandu
- Cube Attain
- Cube Agree
- Cube Nuroad
- Cube Hyde
- HPA
- C:62
- 29 inch
- 27.5 inch
- Bosch motor number
- Battery serial number
- Shimano or SRAM part code
- Tyre size marking
- Fork serial number
The number you want is the unique frame code that belongs to the frame itself.
Cube e-bikes carry several numbers
Cube e-bikes can have several numbers on the bike. The motor, battery, fork and frame may all carry separate identifiers. For stolen-bike checks, resale, insurance and proof of ownership, the frame number is the key one.
On some Cube hybrid and e-bike models the number can be awkward to see, sitting close to the motor, the chainstay area or under factory-fitted accessories such as mudguards. Check carefully before assuming it is missing.
The detail that protects you.
A frame number is one of the most useful details on a used bike. It connects a Cube to its owner, its registration record and any stolen-bike reports.
You may need it to:
- Check if a Cube 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 Cube, 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 Cube? 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 Cube frame number on Cyclesite
Found the number? Run a free stolen-bike check before you buy. Enter the Cube 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 Cube bikes for sale.
What to do if your Cube 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.
Cube frame number FAQs
Where is the frame number on a Cube Aim?
On most Cube Aim hardtail mountain bikes, check underneath the bottom bracket first. If you cannot see it, clean the area and check around the chainstay and seat tube.
Where is the frame number on a Cube Reaction Hybrid?
On a Cube Reaction Hybrid e-bike, check underneath the bottom bracket area first, then check near the motor, between the chainstays and around the seat tube area.
Where is the frame number on a Cube Stereo Hybrid?
On a Cube Stereo Hybrid, start around the bottom bracket and motor area. Also check the chainstay area and original dealer paperwork.
Where is the frame number on a Cube Kathmandu Hybrid?
On a Cube Kathmandu Hybrid, check around the bottom bracket and motor area first. If mudguards, racks or cables hide the number, use a torch and check from both sides.
Where is the frame number on a Cube Attain?
On most Cube Attain road bikes, the frame number is usually underneath the bottom bracket. On carbon versions, look for an etched number or sticker.
Where is the frame number on a Cube Nuroad?
On most Cube Nuroad gravel bikes, start underneath the bottom bracket. If it is not visible, check the rear dropout, chainstay and underside of the down tube.
Is the Bosch motor number the same as the Cube frame number?
No. Many Cube e-bikes use Bosch systems, but the Bosch motor number is separate from the Cube frame number. For bike checks, use the frame number.
What if the Cube frame number is hidden by a cable guide or mudguard?
Remove only what you can safely move, clean the area and use a torch. If you are buying the bike, ask the seller or a Cube dealer to help confirm the number before payment.
Looking for another brand? See the full bike frame number guide.
Bottom line
The quickest place to find a Cube 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 Cube can be a brilliant buy, but the frame number is the detail that protects you.
Frame numbers by brand
Trek · Specialized · Giant · Carrera · Brompton · Boardman · Cannondale · Canyon · Ribble · Orbea · SCOTT · Raleigh · Whyte · 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.