Should a UK rider use BikeRegister or Bike Index?

Start with BikeRegister because it is UK-focused. Adding Bike Index can still help if you want broader public search coverage.

Should a US rider use BikeRegister?

Usually no. Bike Index or Project 529 are more relevant for US recovery networks.

Both have free registration paths. Optional stickers, Shields, or marking kits may cost money.

Which is better for used-bike checks?

Use the registry most likely to contain local bikes: BikeRegister in the UK, Bike Index in many North American communities.

Theft Registration comparison

Bike Index vs BikeRegister: North American Registry or UK Bike Marking

Bike Index and BikeRegister are both useful registries, but geography drives the choice. Bike Index is the better default for many North American riders. BikeRegister is the UK-focused option, especially when police recognition and physical bike marking matter.

Visit Bike Index Visit BikeRegister

Bike Index vs BikeRegister side by side

These rows summarize public provider pages and avoid claims BikeSize has not verified.

Bike Index compared with BikeRegister across 5 dimensions.
Dimension	Bike Index	BikeRegister	Better pick
Geography	Most relevant for the US, Canada, and international public-search use.	Most relevant for the UK.	Either
Core registration	Free bike registration with public serial search and stolen-bike listings.	Free online registration with optional paid marking products.	Either
Physical marking	Optional QR stickers.	Optional UK bike-marking kits and visible identifiers.	BikeRegister
Best for buyers	Useful for checking used bikes in Bike Index-heavy communities.	Useful for checking UK bikes through BikeRegister tools.	Either
Local authority fit	Depends on local police, shop, and community adoption.	Stronger UK police and marking context.	BikeRegister

Choose Bike Index if

You are in North America or your local riding community already uses it.

Visit Bike Index

Read the full Bike Index profile

Choose BikeRegister if

You are in the UK or want a UK-recognized marking and registration workflow.

Visit BikeRegister

Read the full BikeRegister profile

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Service questions

Sources checked

This comparison is built from the Bike Index and BikeRegister profiles, reviewed on 2026-07-14 and 2026-09-04. Providers change pricing and terms without notice, so confirm anything that decides your choice.

Keep comparing

Bike theft registration guide: serial numbers, photos, and recovery basicsHow to register a bike before it is stolen, what details to save, and how Bike Index, Project 529, and BikeRegister fit into a theft-prevention plan.Bike Index vs Project 529: Which Bike Registry Should You UseBike Index and Project 529 both give your bike a searchable record before it disappears. The best choice usually depends on local adoption, whether you want an optional physical identifier, and which registry your city, campus, shop, or police department already uses.Project 529 vs BikeRegister: 529 Garage or UK BikeRegisterProject 529 and BikeRegister both combine a bike record with optional physical identifiers, but they serve different local ecosystems. Project 529 is strongest where 529 Garage is promoted by a city, campus, shop, or police department. BikeRegister is the clearer UK choice.

Last reviewed 2026-09-04. Heads up: we are cyclists, not the service provider. This is general guidance based on public information; always confirm current terms with the provider. Any provider or source links on this page are direct, non-affiliate links. BikeSize does not earn a commission if you use them.