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Blackburn Folsom U-Lock

    Blackburn Folsom U-Lock

    The full-size and strong Blackburn Folsom U-lock uses a hexagonal shackle shape and dual-bolt design to supply security for your bike.

    • $34.95

    Item # 833794

    REI Members get back an estimated $ 3.50 on this item as part of their annual member refund.

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    • 14mm-thick steel shackle features a hexagonal shape to prevent the shackle from spinning, increasing resistance to cutting and leverage attacks
    • Dual-bolt lock mechanism engages the shackles on both ends to maximize bump- and pick-resistance
    • Lining helps protect your bike's finish from scratches and scuffs
    • The Blackburn Folsom U-lock comes with 3 laser-cut keys and a mounting bracket

    Please note: Blackburn products can only be shipped to the U.S., Canada and Mexico.


    Item 833794

    REI Membership

    Blackburn Folsom U-Lock Specs
    Best use
    Bike commuting & touring
    Key lock
    14 millimeters
    Hardened steel
    7.1 x 4.2 inches
    2 lbs. 4 oz.
    Lock style
    Lock type
    Lock thickness (mm)

    Blackburn Folsom U-Lock

    Loading Ratings & Reviews...

    Rated 2.5/5 based on 2 reviews
    Rated 4out of5
    by fromLightweight speed tool Bike lock are trade-off. You can have light, long, strong and cheap: pick two. This one is light and cheap. This lock has a smooth locking system, is long enough for one bike in pretty much any configuration - struggles a bit to get around two - and is light. Of course, it's probably easier to break than a heavier, shorter lock would be. See first paragraph. Downside - and this is common with bike locks - the bike attachment slips. The lock slips down the attachment while riding. So, I put on some duct tape (ahhh duct tape) to tighten the clamp and fixed it.
    Date published: 2013-11-13
    Rated 1out of5
    by fromNot 14mm This is not a 14mm shackle. It is 14mm including the rubber coating. Since it is hexagonal I can measure 2 ways: min=10mm, max=12mm. I personally wouldn't take this on a multi-city bike tour where loosing the bike would ruin the trip even though weight (or lack thereof) is crucial on such a trip. I will stick to my 18mm shackle 2.5kg Magnum lock. You just can't get by with less weight (except by shortening the shackle, but that would still be about 2kg). The question really comes down to whether it can be cut with bolt cutters, and if not, how long does it take to saw off without power tools. My choice would be 13mm mini ulock for around town, or 18mm for leaving the bike for an extended period.
    Date published: 2012-12-04

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