For high level security, secure your bike with the Blackburn 8" U-Lock featuring a 8" hardened steel shackle. Blackburn has all locks rated by a 3rd party testing facility for trusted, unbiased, and qualified security ratings. An independent lab has rated the security of this lock a 4 on a 5-point scale. At a level 4 security rating (High), the Blackburn 8" U-Lock comes with a $500 anti-theft offer. The Blackburn 8" U-Lock includes two standard keys. For every key lock, Blackburn offers a free standard key replacement program.To redeem both offers, register online directly after your purchase by following the simple instructions included on packaging.

  • 8” hardened steel shackle and hardened steel crossbar with vinyl cover to protect your bike from scratches
  • Lock your frame with confidence and a $500 Anti-theft protection program. Remember to register online.
  • Locking mechanism features a dual-bolt locking system for added security
  • 2 standard keys included with free online standard key replacement. Remember to register key online after purchase.
  • An independent lab has rated the security of this lock a 4 on a 5-point scale.