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U-Lock Weights Database? A light, but good U-Lock?

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U-Lock Weights Database? A light, but good U-Lock?

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Old 09-08-09, 11:01 AM
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kmcrawford111
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U-Lock Weights Database? A light, but good U-Lock?

Greetings,

Is there any place available to find out weights of U-locks? I have an OnGuard model 5004, but it's heavy and bulky enough that I don't look forward to carrying it - I fully understand that a good lock generally means a heavy lock, but since I'm now usually using a bike that probably isn't all that attractive to thieves I'm now interested in getting a u-lock that is smaller and lighter - just enough to lock the frame and maybe one wheel. At work, I keep a Kryptonite New York Chain, which weighs something on the order of 8 lbs.

So essentially I'm looking for a small and light yet good u-lock - one that I won't mind carrying regularly in a messenger bag. The Kryptonite Evolution mini looks nice - can anyone tell me what it weighs? Or maybe one made from titanium?

OnGuard Pitbull ATB (model 5004): about 2.75 lbs. or 1.25 kg
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Old 09-08-09, 02:51 PM
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Here is a thread I started on that information. Hope it helps.

http://www.bikeforums.net/showthread...ht=lock+weight
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Old 09-08-09, 04:36 PM
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Asolutely. Thank you. I added my lock to your thread. It seems the evolution mini isn't lighter enough to make switching worthwhile. It would have to be closer to 1.5 lbs...
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Old 09-08-09, 06:35 PM
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Originally Posted by kmcrawford111 View Post
Asolutely. Thank you. I added my lock to your thread. It seems the evolution mini isn't lighter enough to make switching worthwhile. It would have to be closer to 1.5 lbs...
2 lbs isn't close enough to 1.5 lbs?
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Old 09-08-09, 08:57 PM
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Originally Posted by lambo_vt View Post
2 lbs isn't close enough to 1.5 lbs?
It's more that it's not far enough from 2.75 lbs., which is what my current lock weighs. If I didn't already have a lock I'd be looking at a mini-U, but the difference in weight compared to what I already have, from what I've seen so far, isn't enough to make it worthwhile.

I just had a glance at the lower-end mini u-locks like Kryptolok series 2 and bulldog mini, but it looks like the dimensions are about the same, so I doubt they are much lighter. Or am I wrong? These locks are probably about as low-security as I'd tolerate.
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Old 09-08-09, 09:15 PM
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Same issue with the same lock with cable (there is almost no racks around here) that I find I need often so I am at 4lb. Nothing but hills around here and I only carry my U-Lock when I know I will need it. Park indoors in a access controlled location so security is not an issue at the job.

The Mini is not that much lighter but it is less bulky and I may pick up one and then leave big U-Lock at work in case I need it during the day. I keep a cable and padlock with me most of the time but it is useless on a sign.
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Old 09-08-09, 09:16 PM
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Originally Posted by kmcrawford111 View Post
It's more that it's not far enough from 2.75 lbs., which is what my current lock weighs. If I didn't already have a lock I'd be looking at a mini-U, but the difference in weight compared to what I already have, from what I've seen so far, isn't enough to make it worthwhile.

I just had a glance at the lower-end mini u-locks like Kryptolok series 2 and bulldog mini, but it looks like the dimensions are about the same, so I doubt they are much lighter. Or am I wrong? These locks are probably about as low-security as I'd tolerate.
I'm not sure you'll get below 2 lbs without going to an incredibly crappy U lock or a cable. Even the terrible low-end Kryptonites and Masterlock U's weight 2 lbs. 0.5 lb is like 50 sheets of paper... you're obsessing a bit over a miniscule weight difference.
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Old 09-09-09, 11:08 AM
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Originally Posted by lambo_vt View Post
I'm not sure you'll get below 2 lbs without going to an incredibly crappy U lock or a cable. Even the terrible low-end Kryptonites and Masterlock U's weight 2 lbs. 0.5 lb is like 50 sheets of paper... you're obsessing a bit over a miniscule weight difference.
Well, it's the bulk of the thing, too. I don't even have any immediate plans to replace what I have - I just would like to know what might be available. Decent security for a relatively compact and light size without resorting to a cable.
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Old 09-09-09, 12:07 PM
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Why hasn't anyone made a titanium u-lock? I'd be willing to pay a little more for one.
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Old 09-09-09, 12:41 PM
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Originally Posted by Rhodabike View Post
Why hasn't anyone made a titanium u-lock? I'd be willing to pay a little more for one.
The answer to your question lies in your second sentence.
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Old 09-09-09, 01:09 PM
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If you go to the thread I linked to above you will note that the Abus Steel-o chain I list is only 1.75 pounds. This is a hardened steel square link chain with integral lock that IMO has to be more secure than a cable lock. The links are 6mm thickness across the flats. Still relatively low security but less cuttable than any cable I believe. I ordered mine from Amazon.

Unfortunately more and better material means greater security but there is a direct correlation it seems between security level and weight.
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Old 09-09-09, 06:22 PM
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Originally Posted by tatfiend View Post
If you go to the thread I linked to above you will note that the Abus Steel-o chain I list is only 1.75 pounds. This is a hardened steel square link chain with integral lock that IMO has to be more secure than a cable lock. The links are 6mm thickness across the flats. Still relatively low security but less cuttable than any cable I believe. I ordered mine from Amazon.

Unfortunately more and better material means greater security but there is a direct correlation it seems between security level and weight.
Thanks, somehow I overlooked that. I was also looking at the same company's folding (Bordo) locks but they seem to be about the same weight as typical u-locks.

I found a nice page from their company, which lists all of the weights for all of their models. I'll post it in your other thread. Check out their "Granit Futura 64" model U-lock, which is available in an extra-slim version that is slightly longer but slightly less wide than the Kryptonite Evolution Mini. According to their website, this Abus is rated fairly highly. It's made with a special "lightweight" material, but what that is isn't specified. I might pick one of these up, but I'm going to wait to see what kind of racks are about to be installed in my region first (which I have volunteered to check for installation compliance in my city). Most of the things I lock to outside of work (where I leave a very heavy lock) are on the slim side, but if we're getting u-shaped racks like I think we are this lock may be too small. It's 1.67 lbs.

Can't find the steel-o chain that ways only 1.75 lbs. there though? If I can get one of those, that might be the best option.

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Old 09-10-09, 08:40 AM
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I made a lightweight Krypto by using the U from an Evo mini and a shackle from a series II mini. this is as light a U lock as I've ever owned, i will weigh it at work and report back tonight.
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