Why Combination Bike Lock won’t Close [Reasons & Fix]

Whether you ride long-distance or commute shortly, you must have a bike lock. It’s one of the must-have bike accessories to secure the bike when you are not around it.

As there is a risk of losing the key, many riders prefer a combination lock over a traditional one.

But, the same problem arises with the combination lock. Sometimes, you forget the code, and it doesn’t close until you set the combination.

Well, you forget the combination. So it’s not the lock’s fault. But, there are other reasons where you can blame the lock.

However, stay with me to blame the lock and get the solution whoever has the problem.

Why combination bike lock won’t close

It can happen because the code you entered is not correct. When you are closing the combination lock, you must apply the code you use to unlock it. Because there is a key-like pin on it that is held by the disc end when locking. The toothed pin can’t penetrate the other end when the combination is not matched. Thus, the combination bike lock won’t close.

Another reason the bike combination lock won’t close is the lock itself. Yes, now you can blame the lock. Sometimes you put the code correctly, but it is not closing. It happens when the lock is jammed or too rusty inside.

Anyways you can still fix it. Go through the next section carefully to learn how to fix the combination lock.

What to do if the combination bike lock won’t close

What to do if the combination bike lock won’t close

Don’t be annoyed if the combination bike lock won’t close. Be patient; here is the solution. If you follow these steps, you can solve any type of lock-related problem.

Tip-1: Get the right lock

Getting the right lock is more important than you think. Most of the time, the lock gets rusty and jammed the mechanism.

So, getting a durable and secure bike lock is a must. Let’s know what to consider before buying a combination bike lock.

  1. Firstly, consider the type of lock. In my opinion, U-lock is more secure and durable than any other lock. Folding or chain lock is easier to carry. But, U- lock is better overall. However, ignore the cable lock as it is not secure much.
  1. Secondly, while getting a bike lock, check the security rating. Consider gold or diamond-rated bike locks over low-quality silver or bronze-rated ones. Also, think about the built quality. Carbon is stiffer and rust-proof, so you should consider it over other materials.
  1. Lastly, the features must fulfill your need. For example, the discs must be ergonomic or,  the combination must be resettable. Yeah, that is what you are looking for. Now, you can get the solution if the combination bike lock won’t close.

Anyways, I personally like Kryptonite for a bike combination lock. It’s a reputed brand known for manufacturing high-quality bike locks.

Tip-2: Maintain it regularly

Whether the lock has a problem or not, you must maintain it regularly to keep it from rust.

Moreover, if you maintain it regularly, it will offer smooth locking and unlocking. So, learn how to maintain a combination lock.

  1. Firstly, you have to get a suitable lube. I think Teflon Polylube is ideal for the job. It’s not too harsh yet effective to metal. I hope it will work.
  1. Secondly, lube the lock thoroughly. But where should you apply the lube? Well, for a combination bike lock, apply it through the insertion and dial area. Also, lubricate the pin or post. Then, lock and unlock it 4 or 5 times. Thus the lubricant will spread through the whole mechanism.
  1. Lastly, after you apply the lube, try to close the bike combination lock. If it doesn’t close, maybe there are major issues. In that case, take it to a lock expert to get a fix.

The combination bike lock should close by now. Now, let’s know what to do if you forget the combination.

Tip-3: Reset the combination

To be honest, there is no alternative to remembering the combination. So what to do? Note the combination or upload it on a reliable server.

For example, if you are using Kryptonite, register to their safe lock program. Once you forget the combination, they will pull it out for you.

However, after getting a new lock reset the code to your preferred combination. Thus, the chances of forgetting the combination will reduce.

Let’s know how to reset a combination bike lock.

  1. Firstly, look for the reset dial or reset hole pair. On a cable lock, you will find a reset window when the lock is opened. Other hand, there is a reset hole pair on U-lock. In that case, you will get a reset tool pin with it while buying.
  1. Secondly, bring the lock to reset mode. For that, open the lock and insert the reset tool to the hole pair (U-lock). Or, rotate the reset dial clockwise until a red appear on the window. The lock is now in reset mode.
  1. Lastly, enter your preferred combination. Make sure the numbers are aligned right. Then, take out the reset tool or rotate the reset dial until it returns to the previous position. Finally, check if everything is okay. Lock and unlock the lock but don’t change the combination. If you can do it smoothly, it’s all set.

Why combination bike lock won’t open

Why combination bike lock won’t open

The combination bike lock won’t open because of a misaligned combination or incorrect code. Another reason why it doesn’t open is the mechanism is jammed.

Yes, it happens for the same reason the bike lock doesn’t close. But, there is a problem. When the lock won’t close, it can be taken off the bike.

But, when it’s not opening, that means the bike is stuck, and you will need a quick solution. The solution is a bit different in this case.

That’s why I am discussing it separately. Let’s dig in.

  1. Firstly, set the right combination and make sure the numbers are appropriately aligned. If the dials are not spinning smoothly, apply Grease so that you can adjust them easily. The lock should be opened by now. If it’s not, go to the next step.
  1. Lastly, if the lock is not opening, there is no other way than break it. For that, you can take help from a professional lock expert or learn how to break a bike lock.

Frequently Asked Questions about Combination Bike Lock

How often should I maintain the combination bike lock?

It depends on the built quality of the lock and how much you use it. Usually, maintaining it once a month is good. But do it whenever you feel there is a problem. 

How much does it cost to get a bike combination lock?

Instead, I will ask you how much you want to spend. You can get a lock at 20 to 25 USD.

But it can’t provide the security you are expecting. In my opinion, spending around a hundred bucks will be enough to fulfill your need.

Thinking it a waste? Can’t you spend a hundred dollars on protecting your thousand-dollar bike?

Are combination bike locks any good?

Well, it’s a yes and a no. If you think about convenience, a combination lock is more convenient than a key lock.

But, it is said that the key lock is more secure than the combination lock. Because the code is trackable.

But, if you think twice, it takes hours to crack the combination. So, it’s not a problem unless you leave the bike unsecured for a day long.


It won’t be fair if the lock you use to secure your bike starts annoying you. So, keeping it from problems is necessary. You use it to stay tension-free, not to get tensed.

First of all, you must remember the combination. Thus, you can get rid of half of the problems.

Well, it’s okay if you forget the combination. Reset it according to the process I have described earlier.

However, you must maintain the lock if you want to eliminate all the issues you face. The tips I suggested can help in this case. Follow them thoroughly to get a smoother, safer lock.

I hope you get a secure bike next time.


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