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Blackburn San Quentin U-Lock

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Delivering the toughest security level from Blackburn, the San Quentin U-Lock locks up your bike with an 18mm-thick shackle and a sturdy crossbar.

  • Burly 18mm-thick steel shackle features a hexagonal shape to prevent the shackle from spinning, increasing resistance to cutting and leverage attacks
  • Shackle lining helps protect your bike's finish from scratches and scuffs
  • Dual-bolt lock mechanism engages the shackles on both ends to maximize bump and pick resistance
  • The Blackburn San Quentin U-lock comes with 3 laser-cut keys and a mounting bracket


Item 856435


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Blackburn San Quentin U-Lock Specs
Best use
Urban cycling
Key lock
18 millimeters
Alloy steel
7.8 x 4 inches
3 lbs. 1 oz.
Lock style
Lock type
Lock thickness (mm)

Blackburn San Quentin U-Lock

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Blackburn San Quentin U-Lockis rated5.0out of5by1.
Rated5out of5byfromgreat lockThis lock is about 2 lbs lighter than the Krypto that I replaced and I like the center key versus the end key on Krypto locks. Blackburn U- locks have to have both ends in in order to engage the locking mechanism and I have only once run across a situation where I did not have enough room to get my u-lock through rear wheel and cable lock around a fixed object. Sometimes it is tight but that's a good thing, no room for leverage attacks on your lock. Blackburn sells a great rear rack the TRX-2 ultimate commuter that comes with a slot to hold all versions of Blackburn U-Locks. BTW Blackburn does have excellent customer service I learned that with an old headlight I had of theirs.
Date published: 2013-06-13

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