Harley Rear Axle Size Chart

Check out our Harley rear axle size chart for the perfect fit for your bike. Customizing your Harley is part of the thrill, but safety and performance are paramount. Our comprehensive chart includes all the info you need, plus a guide on measuring your axle. Keep your ride in top shape with confidence!

Harley Rear Axle Size Chart

09-17All Touring Models with ABS25mm
09-16All Touring Models without ABS25mm
08All Touring Models with ABS25mm
08All Touring Models without ABS25mm
02-07All Touring Models1”
00-01All Touring Models¾”
86-99All Touring Models¾”

What is a Rear Axle Size Chart?

If you’ve ever tried to replace or upgrade the rear axle on your vehicle, you know that finding the right size can be a bit of a challenge. That’s where a rear axle size chart comes in handy. Essentially, it’s a reference guide that lists the various sizes of rear axles commonly used in different types of vehicles.

By consulting such a chart, you can ensure that you’re getting the right size for your particular make and model. This is important because installing an axle that’s too small or too large can throw off your vehicle’s balance and performance. So next time you’re in the market for a new rear axle, take a look at a rear axle size chart to make sure you’re getting the right fit.

harley rear axle size chart

Why is it Important to Have a Harley Rear Axle Size Chart?

Harley Rear Axle Size Chart. Introduction: If you are a Harley-Davidson owner or enthusiast, having a Harley rear axle size chart can be incredibly important in various instances. The rear axle, after all, is an essential component of any motorcycle.

It’s responsible for transmitting power from the engine to the rear wheel, and its size can vary based on the model and year of production. That’s why having a chart that lists the specific sizes of various Harley models can mean the difference between a smooth ride and a catastrophic failure. Whether you are doing routine maintenance, upgrading your bike, or replacing a broken axle, this chart can be helpful if you want to make sure everything fits correctly.

In this blog section, we will explain why having a Harley rear axle size chart is crucial and how it can benefit you as a rider or a mechanic.

Understanding Rear Axle Sizes

When it comes to Harley Davidson motorcycles, understanding rear axle sizes is crucial for maintenance, customization, and upgrading. The rear axle is responsible for connecting the rear wheel to the swingarm and drive system, and various factors affect its size, such as engine power, bike weight, riding style, and suspension. Generally, Harley models have a rear axle size ranging from 3/4 inches to

5 inches and the most common size is 1 inch, which fits most Softail, Dyna, and Touring models. However, it’s important to check the owner’s manual, ask the dealer, or measure the axle diameter and length accurately to avoid compatibility issues and ensure safety and optimal performance. Using a Harley rear axle size chart and understanding the differences between standard and custom axles can also help you choose the right size and material, such as chrome, stainless steel, or titanium.

Remember that upgrading your rear axle can improve your bike’s stability, handling, and appearance, but it also requires professional installation and adjustment.

What are the Different Types of Axle Sizes Available?

Rear axle size is an essential consideration when it comes to purchasing a vehicle or upgrading your current ride. The axle size typically refers to the diameter of the axle shaft, and it comes in various sizes depending on the vehicle type and usage. There are four main axle sizes: 7/8″, 1″, 1 1/8″, and

25″, with 1″ being the most common. When choosing an axle size, you’ll need to consider several factors, including the vehicle’s weight, the intended use of the vehicle, and the power output of the engine. Generally, larger axle sizes are better for commercial or heavy-duty vehicles that carry heavier loads or are used for towing.

Smaller axle sizes, on the other hand, are ideal for lighter vehicles, like sports cars and sedans. By understanding the different axle sizes available, you can make an informed decision when looking to upgrade or purchase a new vehicle that suits your driving needs.

How to Measure Your Harley’s Rear Axle Size?

If you’re not exactly sure how to measure your Harley’s rear axle size, you’re not alone. Understanding rear axle sizes can be a bit tricky, but it’s essential knowledge for any Harley owner. Before you start measuring, it’s important to know that Harley rear axles come in two different sizes: 3/4 inch and 1 inch.

The easiest way to determine which size you have is by checking the year and model of your bike. Most Harley Davidson models made after 2008 use a 1-inch rear axle, while older models typically use a 3/4-inch rear axle. Once you know the size, you can measure the axle’s diameter and length.

The diameter is simply the width of the axle, and the length is the total distance between the two ends. This information will come in handy if you need to replace your Harley’s rear axle or any related components. Knowing your rear axle size can also help when it comes to customizing your bike, as different size axles can allow for different wheel and hub combinations.

Factors that determine a Harley’s Rear Axle Size

When choosing a Harley, there are several factors to keep in mind, including the size of the rear axle. The rear axle size is determined by a few different things, such as the weight of the bike, the power output of the engine, and the intended usage of the motorcycle. Generally speaking, smaller rear axles are used for lighter bikes with less power output, while larger axles are used for heavier bikes with more power.

The size of the rear axle also affects the handling and stability of the bike, with larger axles providing better stability at high speeds. It’s important to understand the factors that determine rear axle size in order to choose the right Harley for your needs and riding style. So, whether you’re cruising down the highway or taking on winding mountain roads, make sure you choose a Harley with the right rear axle size to ensure a smooth and safe ride.

Harley Rear Axle Size Chart

Are you looking for information on Harley rear axle sizes? If so, you’re in luck! Harley-Davidson motorcycles have a variety of different rear axle sizes depending on the model and year. It’s important to know the correct size in order to properly maintain your bike and make any necessary modifications or upgrades. A Harley rear axle size chart can come in handy in such cases, providing you with specific measurements for your bike.

Be sure to consult the chart thoroughly and double-check your measurements before making any purchases or adjustments to your bike. It’s always better to be safe than sorry when it comes to your Harley’s performance and safety on the road.

List of Harley Rear Axle Sizes with Bike Models and Years

If you’re a Harley-Davidson owner, you know that finding the right parts for your bike can be a challenge. This includes getting the right rear axle size. Luckily, we’ve compiled a list of Harley rear axle sizes for you to reference.

The sizes vary based on the bike model and year, so it’s important to find the right match. For example, some Softails have a 3/4-inch axle, while later models have a 1-inch axle. Sportsters typically have a 3/4-inch axle, but the Iron 883 has a 25mm axle.

Dynas also vary in size, with some having a 1-inch axle and others having a 25-mm axle. And for Touring models, the majority have a 1-inch axle, but some have a 25mm axle. It’s important to consult your owner’s manual or a Harley specialist to ensure you get the correct rear axle for your bike.

By knowing the size needed, you’ll be able to find the perfect fit for optimal performance. So if you’re in need of a new rear axle for your Harley, take a look at our chart to help make your search a little bit easier.


After examining this chart carefully, it’s clear that Harley rear axle sizes are just like personality traits – they come in all shapes and sizes. Whether you prefer a larger or smaller size, it’s all about finding the one that fits you and your bike just right. So, be sure to measure twice and ride once!”


What are the different sizes of rear axles available for Harley-Davidson motorcycles?
Harley-Davidson offers rear axle sizes ranging from 3/4 inch to 1.25 inches, depending on the model and year.

How do I determine what size rear axle my Harley-Davidson motorcycle needs?
The best way to determine the correct axle size for your bike is to consult the owner’s manual or check with a Harley-Davidson dealer.

Can I install a different-sized rear axle on my Harley-Davidson motorcycle?
Installing a different-size rear axle can affect the handling and stability of your bike, so it’s important to consult with a Harley-Davidson dealer or mechanic before making any changes.

Are there any aftermarket options for rear axles for Harley-Davidson motorcycles?
Yes, there are a variety of aftermarket rear axles available for Harley-Davidson motorcycles, including high-performance options for racing and custom applications. Be sure to check with a reputable dealer or mechanic before making any modifications to your bike’s rear axle.

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