Locks are used to secure bikes. Common varieties are cable/chain locks and U-locks (D-locks).

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Bike lock for a Mountain bike with easily removable wheels

I have a Trek 3500 that I need to lock up when I ride city trails, but I have been nervous as both of the wheels are incredibly easy to remove (flip a switch, rotate a lever a few times and they ...
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How to deal with lock that keeps jamming?

I have a kryptonite U lock and lately it's been sticking a lot while trying to turn the key. Usually I can eventually get the key turned. It was getting worse though and a few days ago I (unable to ...
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Alternate mount for Kryptonite U-Lock?

My wife's bike doesn't have room on the upright to mount the Krytonite U-Lock she was given as a gift. The plastic mounting bracket sticks out way too far. She has a small framed Specialized Vita. ...
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U-lock stuck on a bike

Some time ago, I stuck a U-lock on my bicycle for safe keeping, on the top tube below the seat. It's annoying when riding, and I'd like a way to remove it. I've lost the key some time ago, or I would ...
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Silencing a rattling u-lock

I'm not sure if they're all like this, but my u-lock is a bit loose between the two pieces, the U and the bar. The provided mount snaps very very tightly onto the U, leaving the bar to fend for ...
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2answers
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Is there a lock rating system in the US?

There are several questions already about what's the best bike lock. I'm just looking for information on lock rating systems. I've found a couple rating systems in countries like UK (Sold Secure) and ...
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What is the best bicycle lock on the market?

What is the best bicycle lock on the market, defined by: Best security Easiest usability when securing your bike Easiest method of transport Lightest without other compromises Edit: In addition, ...
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How can I keep my bike safe in my garage?

I just got a brand new bike. I keep it in the garage, but my wife has a habit of leaving the garage door up. Right now, there's nothing in my garage that I can really lock the bike to. How can I ...
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Non U-Lock that can be mounted for carrying?

I recently moved away from NYC to the suburbs. In NYC, I always locked up my bike with the New York Lock, which is a super heavy duty U-Lock. With a plethora of signs and parking meters, NYC works ...
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When registering keys, which number is the Kryptonite key#?

I've just bought a new Kryptonite lock and am about to register the keys at www.kryptonitelock.com, but which number do I enter in the Key# box? Both? The keys each have two numbers, one LXXXX and one ...
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What's the most secure type of bike lock that costs less than $30?

I already have the cable cable kind with the combination lock. It just seems cheap and easy to break into. Is that sufficient or are the U shaped ones better?
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Kick-stand on a commuter bike?

If I get this commuter bike, should it have a kick-stand? One LBS said "no": they explained that stands are difficult to attach, weigh a bit, don't stay on well, and/or scratch the frame. I've never ...
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Installing a lock mount on a carbon fiber frame

Let's ignore the question, for a moment, of should I install a lock mount on my new TCR Advanced. But assume that I want to. Given that the frame is carbon fiber, should I be worried about the ...
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Ever seen a locking bag that could be locked to the bike?

This might take a little explaining. I've got stuff on my bike that removes easily and could be stolen: head light, tail light, cyclometer. If I'm riding to a concert or something, I don't want to ...
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Locking your bike in public areas

I recently saw a small clip about how to securely lock your bike. I was wondering what are your tips for minimizing the chances of getting your bike stolen. Here ...
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7answers
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My key jammed in my U-lock. How can I unlock/break it?

I've been biking for 2 months now with my U-lock still on my bike, it sort of gets in the way of pedaling sometimes and I'm kinda tired of it. Does anyone know of any ways to get the remnants of the ...
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5answers
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Lock for extremely frequent use

Are there lock products out there specifically designed for easy handling when locked unlocked dozens of times a day? I'm using a normal, chain-based lock at the moment and I'm annoyed because I'm ...
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Best bike lock

I recently lost the keys to my lock and had to borrow a bolt cutter to free my bike. It was a bit of an eye opener to realise a) just how easy it was for the bolt cutters to cut through my D Lock ...