Catalyst U Locks

Bell Catalyst Series U-locks offer high security and are the best defense against would-be bicycle thieves. Constructed from hardened steel, most models feature a center-locking mechanism which secures both sides of the shackle making it more difficult to defeat. All of our U-locks have a protective soft touch sleeve to protect your bike from scratches.

All Bell U-locks are either a security level 4 or 5, our highest security level. We offer a variety of U-Lock sizes from pocket-portable to long shackle designs which provide more locking options.

Great for commuters!

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Steve Russ says:

my bike is locked but lost my key. help

Alonso Martz says:

My GT BMX was stolen with a U-Lock from bell how ever I didn’t have a receipt any more I so i didn’t a registered it. Then i bought a new lock catalyst but it didn’t allowed​ me to register it with my new bike so i returned it cause of the 15 day whatever.

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