Hub spacing is one of the key factors to consider when selecting the right wheels for your bike. This critical measurement determines how the wheel fits into the frame. Bike hub standards can be confusing, and the wrong measurement can lead to incompatibility.

In this blog post, we aim to provide you with a clear understanding of hub spacing standards to help you make an informed decision when choosing your bike's wheels.

1. Quick Guide to Bike Hub Spacing Standards

There are four common bike hub spacing standards. They are:

- 100mm front quick-release spacing

- 135mm rear quick-release spacing

- 110mm front thru-axle spacing

- 142mm rear thru-axle spacing

Thru-axle refers to a type of axle that threads through the wheel hub and is secured on the other side, while quick-release refers to the skewer that tightens down on the axle to hold the wheel in place.



2. What’s the difference between quick-release and thru-axle?

Quick-release hubs are often used on rim brake bikes, while thru-axle hubs are used for disc brake bikes. Thru-axle hubs have a larger diameter than quick release, which means they provide more stiffness and stability. They also help to reduce rotor rub and wheel flex – two of the biggest issues that can lead to poor braking performance.

3. What hub spacing is most common?

The most common hub spacing standard for road bikes is 100/130mm for quick releases, while for mountain bikes is 110/142mm thru-axle. However, there are also other hub spacing standards, such as 12x142mm, 15x135mm, and 12x150mm. Before purchasing a new wheelset or bike frame, always check the hub spacing to ensure compatibility.

4. What hub spacing should I choose?

The perfect hub spacing you need should depend on the type of biking you intend to do. If you’re a roadie, you would most likely need a 100/130mm quick-release spacing. For mountain biking, you would most likely need a 110/142mm thru-axle. Remember, when choosing hub spacing, it’s always better to go with the standard size. This will make it easier to find replacement parts, such as wheels and cassettes.

5. How do I measure hub spacing?

If you want to know the hub spacing of your bike, you need to measure the space between the inside of the dropouts where the wheel fits in. For quick-release hubs, measure the distance between the two ends of the skewer. For thru-axle hubs, measure the internal width of the dropouts which will be the same as the distance between the two ends of the axle.

Conclusion:

Understanding hub spacing standards is essential when it comes to choosing the right wheels for your bike. Knowing the right hub spacing measurement ensures compatibility with your frame and helps to ensure that you can easily replace your wheels and other parts when it matters the most.

Remember, taking a little time to research and understand the hub spacing standards will save you time and money in the long run. So, take the time to check the measurements before making any purchase, and always ride safely with the perfect wheels for your bike.

Cycling enthusiasts love to know how to take care of their bicycle’s components, not only because it is essential for smooth riding but also because knowledge is power. If you are one of those bike enthusiasts wondering how to measure the spoke hole diameter on a hub, which is one of the crucial components in a bike's wheel, you are in the right place.

In this blog post, we will discuss the steps to measure the spoke hole diameter on a hub.

Before we dive into the process of measuring the spoke hole diameter on a hub, let us first discuss what it is. The spoke hole diameter is the distance across the hole to the opposite side of the hub. The most common spoke hole diameters are 2.6mm and 2.9mm, with a few exceptions. For example, some lightweight components use smaller diameter spoke holes.

To measure the spoke hole diameter, you can use a vernier caliper or a ruler with millimeter markings. You need to measure the hub's hole from the inside of the spoke bed to the opposite side, across the center of the axle. Once you have found the center of the axle, you can measure the diameter of the spoke hole.

Another way to measure the spoke hole diameter on a hub is to use a drill bit and a caliper or ruler. First, find a drill bit that is larger than the spoke hole diameter and smaller than the hub's hole. Ensure the bit fits the hole snugly but can still turn freely. Once you have the appropriate drill bit, place it in the spoke hole and use your caliper or ruler to measure the drill bit's diameter. This measurement will be the diameter of the spoke hole.

If you have access to an electronic spoke tension meter, you can measure the spoke hole diameter by using it. Electronic spoke tension meters can measure the spoke tension and use it to calculate the spoke hole diameter. This method is easier, faster, and more precise than using a caliper or ruler.

You can also use the manufacturer’s specifications to identify the spoke hole diameter. Most manufacturers attach a tag on the hub, which lists every specification, including the spoke hole diameter. If you cannot find any tag or sticker on the hub, you can contact the manufacturer or look it up online.



Conclusion:

Measuring the spoke hole diameter on a hub is essential to ensure a perfect fit and proper tension of your spokes, which is crucial for a smooth and safe ride. Whether you use a vernier caliper, ruler, drill bit, electronic spoke tension meter, or manufacturer's specification, the process for measuring the spoke hole diameter is relatively straightforward.

If you don't have any of the tools, you can always take your hub to a bike mechanic who can help measure it for you. Remember, knowledge is power, and taking care of your bike's components can make a significant difference in your cycling experience!