Free 2-Day Shipping on Orders Over $50

Blackburn San Quentin U-Lock

Sale $49.47 $89.95 45% off

Item # BLB0084 Past Season Colors

Select options
  • Select options
  • One Color, One Size ($49.47)
  • 100% Guaranteed Returns
  • Free 2-Day Shipping
    on orders over $50

Item # BLB0084

It's what NASA uses to lock up the Rover on the moon

Place your bike in solitary with the Blackburn San Quentin Bike U-Lock. The 18mm cut-resistant alloy steel shackle with anti-scratch liner will spoil any theft-attempt without scratching up your beautiful ride. The bump-proof, pick-proof dual-bolt locking mechanism will stand up to Hollywood's most clever jewel thief, and the $4,000 theft replacement guarantee has you covered in the event of the unthinkable.

Tech Specs

Lock Type:
199 X 102 mm
Recommended Use:
maximum security
Manufacturer Warranty:

Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Heavy, Beefy

  • Familiarity: I've used it several times

This lock is definitely on the heavy side, but would you really rather have a lightweight lock to safely secure your bike? I, like a couple others, had a hard time fitting it on my frame with the mount, so I either throw it in a backpack or lock it around the triangle by the front wheel. The lock engages and disengages smoothly and I'm certainly satisfied with my purchase.


  • Familiarity: I've put it through the wringer

This is a STRONG LOCK it looks good opens & closes good. I could not use the connector that came with the lock, It would not fit my bike so I am using the lock it self as the connector it's working great as seen in photo


Solid! Solid!

  • Familiarity: I've used it several times

I've been using this for a few weeks now and I always feel good leaving my new cross bike outside the bar, grocery store, coffee shop, you name it. Pretty beefy as far as locks come when i saw it compared to my friends, in combination with a cable lock I have no qualms, and I'm pretty bike-anoid myself. The frame mount went on to my frame no problem as well, I just don't have room in my inner triangle for the lock with bottle cages.

Good for the Guarantee

    I have only had this lock for a week and used it pretty much every day so far. I love that it lock comes with a 4,000 theft replacement guarantee, which is really the main reason I purchased it. It is a bit on the heavy side which is my only real complaint. the scratch resistant material is one of the few that actually holds true. I have used it both on a carbon frame and an aluminum neither having marks on them afterwords. Even if it has been a little tight squeeze. Overall so far I am pretty satisfied with the lock.