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  1. #1
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    Do mini U locks fit folding bikes?

    Specifically will this one fit my Dahon D7:

    http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

    I like its relatively low weight of 2lbs, compared to 4+ lbs for most U locks. I fully agree that taking the bicycle in with you is the best security. But sometimes you have to leave it outside. I used to use a cable lock, until my bike got stolen in Chicago.

  2. #2
    Senior Member Chop!'s Avatar
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    Most cable locks are made from a type of licorice, thieves just bite through them!

    Surely, it would depend on how you intend to lock it (through the frame, or one or both wheels)

    This lock looks cheap and easily broken, it would need to be long enough to go around the frame/wheels and around an immovable object, like the front leg of a Police sergeant's desk.

    But there are some, mostly, favourable reviews here

    Personally, I take mine in just about everywhere. When, on the very rare occasion, I can't take it with me, it's left in very plain sight and locked with this :-


    Abus Granit X-Plus 54


    (on the normal 1 to 10 scale of security, this scores 15 !)

    Downside is it costs as much as a used Dahon. But after supplying 2 folders to thieves, I reckon it's worth it! Guess it depends on your budget, versus the value you put on your bike, as well.

    Never owned a Dahon, Hope you get a more experience-based reply.
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  3. #3
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    From what I am reading, all U locks can be defeated with a chain saw/grinder in under an hour. So why bother with an expensive and heavy one? Hence, my reason for the cheaper lighter one.

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    I just bought that exact Onguard mini bulldog last week. I thought I made a mistake seeing how small it was, would it fit large bike racks? I was surprised it did fit. I locked my folder around a large bus sign pole. but then my folder has standard round 1in tubing not the elongated dahon tubes.
    from what I'd read having a smaller lock would help against leverage type attacks.
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  5. #5
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    Quote Originally Posted by duke_of_hazard View Post
    From what I am reading, all U locks can be defeated with a chain saw/grinder in under an hour. So why bother with an expensive and heavy one? Hence, my reason for the cheaper lighter one.

    But half the time, the point is to make your bike less attractive to take. A typical bike thief usually goes for the easier bike in the rack so a heavier lock will sometimes decide if it's your bike or the one next to you that gets taken.

    As far as personal experience, I never had a bike stolen. It's always with me until it get's home. That's the point of my owning a Brompton.

  6. #6
    jur
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    There is something to be said for the peace of mind you get when you invest in a powerful lock and use it. The Dahon isn't the most expensive foldie out there so my guess is it will be OK with the OnGuard. It will be better with something stronger though. If you mount the lock on your bike then you won't even notice you are carrying it. (How to mount it is not so easy though.)

    Luckily the lycra louts on their plastic bikes are so dominant here in Melbourne that few people let alone thieves even know about the existence of foldies or Moultons, so I leave my precious unlocked from time to time, depending on where.

  7. #7
    Senior Member badrad's Avatar
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    i have the similar lock - the magnum 3039 with cable, and i also have the Kryptonite New York Fahgettaboutit minilock. if i know i am just running between home and work office, i will often not bring any lock since my Mu SL sits under my desk in the office.

    if i am expecting to run about town but within view range i will bring just the magnum lock and cable since that is quite light. on a few occasions at some events where i had to leave my bike unattended longer i also bring along the krytonite boat anchor. certainly a nasty combination, again not totally undefeatable but hopefully the time it takes for someone to beat down both, they will go for the adjacent bikes instead.

  8. #8
    coprolite fietsbob's Avatar
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    Abus Bordo has folding links and can be frame fitted..

    FWIW, A lock cannot be so mini that you cannot attach the bike onto something ..
    not cheap but neither is replacing a stolen bike..

    http://clevercycles.com/products/acc...do-6000-90-key

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