Bike trunk bag – Top 3 best bicycle trunk bag reviews, Buying Guide, & FAQ

The trunk on the bike often is added to provide you with storage space. However, the design of the trunk is such that it does not allow you to store much. That is why, if you want to effectively use the bike trunk, it is a good idea to get a bike trunk bag.

The question is which bike trunk bag is a good option?

Today, I will share with you 3 best bicycle trunk bags. Once you go through this list of bike trunk bags and the buying guide below, choosing the trunk bag which will provide you with maximum storage is certainly possible.

1. Topeak MTX Trunk Bag DXP Bicycle Trunk Bag


The bike trunk bag which I am highlighting now consists of 600 D polyester material. This material can handle wear and tear. Also, it consist of rigid molded side panels which ensures that the stuff inside is completely safe.

Wondering about the dimensions?

The dimensions of the bag are 36 x 25 x 21.5-29 cm. The dimensions are such that it will fit into the trunk of the bike quite easily.

The reason it has variable range is because it is expandable. You will be able to choose between the main compartment as well as the expandable top. That way, you can customize it according to your requirement.

The shoulder strap ensures that when you’re not keeping it on the trunk, you can carry it around quite easily.

It offers 1380 in.³ of storage. That is why; you can store quite a few things in it.

The weight of just 2.53 lbs ensures that it will not add a lot of weight to your bike.

It comes with a water bottle holder as well. Along with that, it has a reflective strip which increases the visibility.

With the help of quick track system, securing your trunk is easy.

The expandable design as well as the heavy duty construction certainly makes this bag stand out.


  • Sturdy construction
  • Expandable design
  • Plenty of storage
  • Compatible with most trunks
  • Extremely portable design
  • Highly visible
  • Lightweight design
  • Consist of separate water bottle holder


  • Packaging can be better

2. ROCKBROS Bike Rack Bag Trunk Bag


The highlight of this bag is that it is water resistant bike trunk bag. That way, you won’t have to worry about water impacting the contents inside.

The reason why it is water resistant is because of the carbon composite leather material. This material increases the durability as well.

Also, the 2 shoulder straps ensure that if you want to carry it on your shoulder and not on your bike, you can do so easily.

The padded construction means that you will not have to worry about shocks and vibrations. There is a detachable partition which ensures that you will be able to use this bike trunk bag as you want.

Not only that, the dimensions of 15.12” x 10.79” x 21.5″ make it versatile. The weight is just 3 lbs.

Besides carbon leather, it also uses 210 nylon material and EVA well weight. That is why, it becomes easier for you to use it for years together.

When you look at the body frame, you will realize that it provides proper form factor to the bag. That is why, the contents inside remain more secure.

The body frame means that you will be able to store phone, clothes, camera, shoes, and so on.

In case, you’re looking for a water resistant trunk bag which has a removable partition, you can go with this one.


  • Compatible with most trunks
  • Water resistant design
  • Sturdy construction
  • Easy to carry
  • Padded construction
  • Comes with the body frame
  • Highly versatile


  • Finishing can be better

3. ENGWE Bike Rack Bag Trunk Bag


The bag which I am highlighting now has a storage capacity between 70L to 35L. That is good enough for personal use.

The waterproof design means that it is one of the best bike trunk bags you can go with.

The carbon leather design means that it is quite durable as well. The foldable capacity allows you to use it as per your requirement.

The 2 shoulder straps allow you to carry it with you wherever you go.

The padded design means that you won’t have to worry about shocks.

The integrated frame certainly makes it easy for you to carry cameras, phones, clothes, shoes, and so on.

You can store water cans inside as well.

Installing it on the rack is quite easy. That is why; you won’t have to worry about installation.

You can simply wipe it clean. That is why; maintenance is not going to be a problem either.

The double layer zipper ensures that water will not go inside. Also, the design is such that it does not block the daylight which ensures that you are able to drive the bike easily. The reflective strip certainly increases the visibility and keeps your entirely safe.

Thus, if you’re looking for waterproof bike trunk bag which has high capacity, you can consider this option.


  • Easy to clean
  • Padded design
  • Portable
  • Heavy duty construction
  • Waterproof design
  • Easy to install


  • Zippers aren’t that smooth

Thus, when looking for the best bike trunk bag, these are the 3 options which you can go with. I have taken great care to ensure that only the best options make it to this list. That is why, when you’re choosing between these trunk bags, you’re going with the best.

Bike trunk bag buying guide

Without comparing these 3 bike trunk bags, choosing the right one is not easy. I will share with you a buying guide so that you are able to compare these 3.

Things to consider before buying Bike trunk bag:

The guide below will highlight the parameters on which you should compare them.

• Size:

Without taking into account the size, choosing the right trunk bag is not possible. It should be compatible with the rack. That is why, it is important to take into account the size.

• Material:

The material of the trunk bag will determine its durability. It should consist of sturdy materials like polyester, carbon leather, or nylon. Only then, you can buy that trunk bag.

• Portability:

Not always, you will be carrying it on the bike. Many a times, you will have to carry it manually. That is why; it if it consist of handles on top or straps, that is an advantage.

• Compartments:

Ideally, it should consist of multiple compartments. When that is the case, you will be able to keep everything organized. If the partition is detachable, that is another advantage.

When you compare the 3 best bicycle trunk bags on these few parameters, choosing the right one becomes easy. I will now answer some FAQs regarding these trunk bags so that you can know more about them.



Can bike trunk bags hold shoes?

Yes, these bags can certainly hold shoes. Many of them have side compartments for water bottles and other such things.

Do bike trunk bags interfere with rear brakes?

The design of these bags is such that they do not interfere with the rear brakes.

Can you store the camera in a bike trunk bag?

Many of these bags consist of an internal frame. When that is the case, they can certainly store the camera safely.

Do bike trunk bags come with racks?

No, you will have to buy the rights racks if your bike does not have a rack.

Can your feet hit the bag while pedaling?

If you have installed the bag correctly, your feet will not hit the bag while pedaling

If you’re looking to enhance the storage space on your bike, these are the three best bike trunk bags that you can go with. I have compared hundreds of options to compile the list of the top 3. While choosing these 3 bike trunk bags, you’re going with the best one.

I often cover other bike accessories, like the Best bike parking brake and best outdoor bike rack. You can go through my post to buy the best accessories for bikes.

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