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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 11-12-05, 11:15 AM   #1
gcasillo
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Rusting Kryptonite NY3000 U-lock

I don't have photos at the moment, because I left it at work, but I have a Kryptonite NY3000 U-lock that is suffering from rust. It will open, lock, and close, but it takes a great deal of force to open it once it's closed and locked. I have to bang the U part against whatever I lock my bike to in order to pry it open. It's nigh impossible to open with hands alone.

I don't know if it's rust, but I suspect it is. Is this common? Any ways to combat this preemptively or to restore a lock like this to normal functionality?
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Old 11-12-05, 11:49 AM   #2
RobbieIG
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I had a lock that was giving me similar problems, but I was still able to pull it apart with my hands. I just dropped some chain lube in the locking mechanism and it's been smoove like butter ever since.
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Old 11-12-05, 12:42 PM   #3
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regular oiling of metal parts that are left out in the elements is generally a good idea.
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Old 11-12-05, 12:52 PM   #4
LóFarkas
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It doesn't have to be rust. Possibly dust and general dirt. Try to flush the cr@p out of it with thin oil.
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Old 11-12-05, 01:49 PM   #5
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Quote:
Originally Posted by RobbieIG
I had a lock that was giving me similar problems, but I was still able to pull it apart with my hands. I just dropped some chain lube in the locking mechanism and it's been smoove like butter ever since.

this is the correct response. do this and your lock will love you.
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Old 11-13-05, 12:27 PM   #6
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It irritates me how quickly Kryptonite locks develop surface corrosion here in the swamps of Houston. If the mechanism gets sticky, I flush out bolt area and the key area with WD-40. After that has evaporated and dried, I put in some lock lube from the locksmith shop. Work the bolt back and forth with the key. Soon it is working with silky smoothness.

Locksmiths sometimes suggest a different lube if your lock will be used in below freezing temperatures. If you ride in ice and snow, make sure your lock uses a "winter" type lube.
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