Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 29
  1. #1
    Junior Member
    Join Date
    Apr 2011
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Fine way to lock a rear wheel to an object, or utterly ineffective? [Picture]

    I purchased a mini U-lock today, and it's really short. I mean, I know it was mini, but it's proving to be problematic to the bike-parking areas of my dorm building. As a result, when it came to locking my rear wheel to an object so no one could carry and pick it up away, the u-lock couldn't go through both sides of the frame of the wheel and through the object. I was only able to go through one side of the frame, and then to the object. Here is a picture of it:



    Is this still okay? Because a thief would still need to put in the same effort to break the U-lock to steal my bike, right? I don't see why this would be an issue, but since I'm a newbie to bikes I don't completely trust my judgement. Please give input!!

  2. #2
    Shop Wench
    Join Date
    Mar 2009
    Location
    California
    Posts
    284
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    A spoke cutter applied to about four spokes and your rear wheel is liberated.

    Here's a better way, which even works with locks much smaller than your's:

    http://www.sheldonbrown.com/lock-strategy.html

  3. #3
    Senior Member
    Join Date
    May 2008
    Posts
    1,215
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What happened to the blue rimmed wheel next to you? Looks like you need to worry more about someone letting the air out of your tires.

  4. #4
    Junior Member
    Join Date
    Apr 2011
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The Sheldon Strategy does not work because there is not enough space for me to align that part of th eike with the object I'm meant to lock it to.

    But thank you for making me realize that it is ineffective! Much appreciated.

  5. #5
    just pokin' along desertdork's Avatar
    Join Date
    Aug 2008
    Location
    the desert
    Posts
    1,067
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  6. #6
    Senior Member
    Join Date
    Aug 2008
    Posts
    2,055
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Moe Malik View Post
    The Sheldon Strategy does not work because there is not enough space for me to align that part of th eike with the object I'm meant to lock it to.

    But thank you for making me realize that it is ineffective! Much appreciated.
    find a different parking spot, that style of rack sucks beause it encorages innefective (wheel only) locking styles. Check for a parking meter nearby, sheldon should work fine on one..

  7. #7
    Shop Wench
    Join Date
    Mar 2009
    Location
    California
    Posts
    284
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thinking about your problem some more:

    I think if you were to lock the right drop out to the "left" hoop, you could secure your frame and rear wheel. By passing through the hoop of the wheel rim, and locking a "large object" on each side, this secures the wheel.

  8. #8
    Senior Member meanwhile's Avatar
    Join Date
    Jun 2008
    Posts
    4,033
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Moe Malik View Post
    The Sheldon Strategy does not work because there is not enough space for me to align that part of th eike with the object I'm meant to lock it to.

    But thank you for making me realize that it is ineffective! Much appreciated.
    You could fit security skewers to keep your wheels safe.

    However, this type of back rack is dangerous to your bike's health - of someone knocks your bike then the rear wheel will take all the stress. This is more of a problem with higher end bikes with super light and highly tuned wheels. But this is the worst type of bike rack.

  9. #9
    Senior Member wahoonc's Avatar
    Join Date
    Jan 2005
    Location
    On the road-USA
    My Bikes
    Giant Excursion, Raleigh Sports, Raleigh R.S.W. Compact, Motobecane? and about 20 more! OMG
    Posts
    16,247
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by desertdork View Post

    +1

    Aaron
    Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(

    ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

    "Cycling should be a way of life, not a hobby.
    RIDE, YOU FOOL, RIDE!"
    _Nicodemus

    "Steel: nearly a thousand years of metallurgical development
    Aluminum: barely a hundred
    Which one would you rather have under your butt at 30mph?"
    _krazygluon

  10. #10
    L T X B O M P F A N S R apricissimus's Avatar
    Join Date
    Jun 2008
    Location
    Melrose, MA
    My Bikes
    Bianchi Volpe, Bianchi San Jose, Redline 925
    Posts
    2,226
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by desertdork View Post
    Might as well just get a bigger u-lock rather than lug that chain around.

  11. #11
    Senior Member Looigi's Avatar
    Join Date
    Dec 2010
    Posts
    7,290
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Those locks are about as good as you can get, but I could cut any of them off in under a minute with an abrasive cutoff wheel in a battery operated Dremel. I'm just sayin'...

  12. #12
    Senior Member Nermal's Avatar
    Join Date
    Jan 2006
    Location
    Farmington, NM
    My Bikes
    Giant Cypress SX
    Posts
    1,868
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Has Dremel become a generic term for die grinder?
    Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.

  13. #13
    Senior Member meanwhile's Avatar
    Join Date
    Jun 2008
    Posts
    4,033
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Looigi View Post
    Those locks are about as good as you can get, but I could cut any of them off in under a minute with an abrasive cutoff wheel in a battery operated Dremel. I'm just sayin'...
    No, you couldn't. Even a mains powered Dremel isn't up to tackling a case hardened boron steel hex chain in finite time. A Bosch Pro Series "Blue" Li-ion anglegrinder would do about what you imagine, but that's as much like a Dremel as a sardine is a shark.

    As the U-lock holding the chain: you can get better for less on the general purpose security market - Kasp locks and their clones that protect the shackle with the shoulders of the case instead of making it as vulnerable as possible.

  14. #14
    Senior Member commo_soulja's Avatar
    Join Date
    Aug 2008
    Location
    C-Ville
    My Bikes
    are fun to ride
    Posts
    1,144
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    -from the pic (poor angle btw) the bike rack is poorly designed, it's only useful for locking a bike wheel and not frame/wheel. Is there room on the other side of the rack so you can straddle the bike over the bike rack?
    -use a better locking method, see laura's post link
    Mythical Creatures Touched Me in my Bathing Suit Area.

  15. #15
    Probably Injured beebe's Avatar
    Join Date
    Sep 2010
    My Bikes
    Kona Paddywagon, Surly Crosscheck
    Posts
    303
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The lock is going through the rear triangle, is it not? I can't see many bike thieves willing to chop your spokes only to walk away with a damaged, one-speed wheel. They then would have to either sell a wheel with broken spokes or go to the effort of repairing the wheel. I'd imagine they'd just find a different bike to steal.

    I'm voting effective.

  16. #16
    Senior Member Looigi's Avatar
    Join Date
    Dec 2010
    Posts
    7,290
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Nermal View Post
    Has Dremel become a generic term for die grinder?
    Maybe for some, but I specifically meant a Dremel brand rotary tool. I emphasized Dremel because they are very commonly available, cheap, small, and lightweight.

    I've never had the occasion to grind dies, despite using what are commonly known as die grinders. Unless your fabricating molds and related tooling, when you use a die grinder to grind dies?
    Last edited by Looigi; 04-16-11 at 06:02 AM.

  17. #17
    Senior Member
    Join Date
    Mar 2006
    Posts
    2,013
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    "I can't see many bike thieves willing to chop your spokes"

    Happened to me. I used Sheldon Brown method. First attack was with a hammer trying to break the latch on my Krypontite combination U lock,, succeeded in breaking latch, but lock was still functional, and could be opened with the right combination and using a nail as a substitute latch pin. Then attempted to twist bike, which broke a bunch of spokes. Otherwise bike was fine.
    2000 Montague CX, I do not recommend it, but still ride it.
    Strida 3, I recommend it for rides < 10mi wo steep hills.
    2006 Rowbike 720 Sport, I recommend it as an exercise bike.
    1996 Birdy, Recommend.
    Wieleder CARiBIKE (folding), decent frame.

  18. #18
    Every day a winding road spinnaker's Avatar
    Join Date
    Mar 2005
    Location
    Pittsburgh, PA
    My Bikes
    2005 Cannondale SR500, 2008 Trek 7.3 FX, Jamis Aurora
    Posts
    4,332
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by xenologer View Post
    find a different parking spot, that style of rack sucks beause it encorages innefective (wheel only) locking styles. Check for a parking meter nearby, sheldon should work fine on one..
    I have seen worse. In Italy I have seen "racks" that where a concrete slab with indents for the wheels. There was a steel eyebolt in the concrete for a chain. Problem is you couldn't use the type of cable with integrated lock because it was too big.
    "The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it."

    Albert Einstein

  19. #19
    Senior Member Bluechip's Avatar
    Join Date
    Jul 2003
    Location
    Cypress TX
    My Bikes
    Salsa Fargo Ti, Cannondale CAAD9, Carbonello Fixed Gear, Specialized Epic Disc
    Posts
    921
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It looks effective to me. I doubt most would go to the trouble to get a damaged wheel. Why not steal your fork, crank or bars for that matter. I'd be more worried about the bike getting pushed or knocked over and bending my spokes.

  20. #20
    Senior Member Yellowbeard's Avatar
    Join Date
    Mar 2009
    Location
    Ontario
    Posts
    735
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    A note on the Sheldon method, not sure if many people have seen this but it's apparently not as hard to saw through a rim as suggested. This guy gets it loose in a matter of seconds.



    I always lock through a seatstay as well.
    I'll eat it first.

  21. #21
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    630
    Mentioned
    31 Post(s)
    Tagged
    0 Thread(s)
    Has Dremel become a generic term for die grinder?
    only micro sized ones.. they are no threat to cut a Kryptonite lock,
    too small a motor, take a longtime, go thru a lot of 1" cut-off discs..

    FWIW, You still have to keep the front wheel locked up too ...
    takes a lot of practice to use a fixie as a unicycle..
    Last edited by fietsbob; 04-16-11 at 10:42 AM.

  22. #22
    Senior Member Looigi's Avatar
    Join Date
    Dec 2010
    Posts
    7,290
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fietsbob View Post
    they are no threat to cut a Kryptonite lock,
    too small a motor, take a longtime, go thru a lot of 1" cut-off discs..
    Disagree. My actual experience is otherwise.

  23. #23
    Senior Member
    Join Date
    Aug 2008
    Posts
    2,055
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Yellowbeard View Post
    A note on the Sheldon method, not sure if many people have seen this but it's apparently not as hard to saw through a rim as suggested. This guy gets it loose in a matter of seconds.



    I always lock through a seatstay as well.
    LOL, funny video
    I like how the tire is dragging behind him as he walks away... very conspicuous looking.

    I'm still not too worried about the method though, since he's not getting away by riding that bike. Would only be effective for the thieves who toss the bike in the back of the pickup truck, but I suspect they tend to go for easier targets anyway...
    besides, theres the resell issue, if the bike is so cheap the thief is willing to destroy its rear wheel, then is probably not worth their time to rebuild and resell it.
    Last edited by xenologer; 04-16-11 at 06:16 PM.

  24. #24
    Senior Member tligman's Avatar
    Join Date
    Jun 2010
    Location
    Cleveland-ish, OH
    Posts
    307
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You could always keep the mini lock for carrying with you and leave a full sized u-lock attached there at the dorm rack, and pick up a cable to go w/ the mini-ulock when you go somewhere to keep the front wheel as well.

  25. #25
    Senior Member
    Join Date
    Jul 2007
    Posts
    584
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    In my experience, the effectiveness of the locking scheme is only relative to everybody else's on the rack. I think your u-lock is going through the rear triangle, so I think you're in pretty good shape.

    You could always use the end of the rack, instead of using one of the spots in the middle. That might work out nicely.

    Oh, and I'd ugly up the bike a bit. It works for me -- nobody's stolen me yet.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •