Which is better outside North America?

For the UK, BikeRegister is the clearer fit. For other countries, check which registry has local police, shop, or community adoption.

Are the physical identifiers required?

No. Both services can start with registration. Physical identifiers are optional products.

Can I use Project 529 in the UK?

You can check the current service availability, but BikeRegister is usually more relevant for UK police and buyer checks.

Which should I use for a campus bike?

Use whichever registry the campus security or local police department promotes. If no one promotes one, register with the strongest local option and keep good photos.

Theft Registration comparison

Project 529 vs BikeRegister: 529 Garage or UK BikeRegister

Project 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.

Visit Project 529 Visit BikeRegister

Project 529 vs BikeRegister side by side

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

Project 529 compared with BikeRegister across 5 dimensions.
Dimension	Project 529	BikeRegister	Better pick
Where it works	Registers bikes internationally, with the strongest program coverage in the US and Canada.	Built for the UK; not the right registry for a bike kept elsewhere.	Project 529
UK police and marking campaigns	Runs city, campus, and police programs, but not UK-specific ones.	Positioned around UK police use and organised bike-marking events.	BikeRegister
Physical identifier	Optional 529 Shield with a unique code.	Optional UK bike-marking kits.	Either
Public checks	Public bike search and found-bike workflow.	Bike checker for UK bikes and marked cycles.	Either
Best default	North American rider whose local area promotes 529.	UK rider who wants local checking and marking support.	Either

Choose Project 529 if

Your local North American program already uses 529 Garage or you want the optional Shield workflow.

Visit Project 529

Read the full Project 529 profile

Choose BikeRegister if

The bike is kept, bought, or sold in the UK and you want a UK-oriented marking system.

Visit BikeRegister

Read the full BikeRegister profile

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Service questions

Sources checked

This comparison is built from the Project 529 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 basics

How 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 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.

Bike Index vs Project 529: Which Bike Registry Should You Use

Bike 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.

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.