Best Bike Headset Spacers of 2025

Jason Kiser Avatar
Jason Kiser
Last Updated: Jan 14, 2025

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Bike headset spacers are small, cylindrical components that are installed on the steerer tube of a bicycle fork. These spacers sit above or below the stem and are used to adjust the height of the handlebars. They come in a variety of sizes, colors, and materials, including aluminum, carbon fiber, and plastic. Bike headset spacers are an essential component for cyclists who want to achieve a comfortable riding position and optimize their bike's performance. They are easy to install and can be swapped out or rearranged as needed to achieve the desired handlebar height.

At a Glance: Our Top Picks

Sumind 11 Pieces Carbon Fiber Bike Headset Spacer Set Cover #TOP 1
Sumind 11 Pieces Carbon Fiber Bike Headset Spacer Set
ftb score rating icon 9.8
Wolf Tooth Components Anodized Bling Kit Cover #TOP 2
Wolf Tooth Components Anodized Bling Kit
ftb score rating icon 9.7
Kbrotech Bike Headset Spacers Cover #TOP 3
Kbrotech Bike Headset Spacers
ftb score rating icon 9.5

Top 10 Bike Headset Spacers

#TOP 1

Sumind 11 Pieces Carbon Fiber Bike Headset Spacer Set

Sumind-Headset Spacer-01
Black
Sumind 11 Pieces Carbon Fiber Bike Headset Spacer Set Cover
Sumind 11 Pieces Bike Carbon Fiber Headset Spacer Bicycle 1-1/8 Inch 20 15 10 5 3 2 1 mm, 7 Size

The Sumind 11 Pieces Bike Carbon Fiber Headset Spacer Set includes 7 different sizes of spacers, made of woven carbon material. These spacers are light in weight, corrosion-resistant, and have good temperature resistance. The set is designed with smooth edges and a delicate texture, making it durable to use. The spacers also allow for precise height adjustments and fit most road bicycles with an inner diameter of 28.6 mm and external diameter of 34.9 mm. The total weight of the set is approximately 45 g.

What We Like
Good variety of sizes
Quality seems great
Lightweight compared to alloy
Aesthetic carbon fiber look
Fast delivery
What We Don't Like
Heavier than some brands
#TOP 2

Wolf Tooth Components Anodized Bling Kit

BLINGKIT_PURPLE
purple
Wolf Tooth Components Anodized Bling Kit Cover
Wolf Tooth Anodized Bling Kit - Purple

Personalize your bike with the Wolf Tooth Components Anodized Bling Kit in Purple. The kit includes four headset spacers, an ultralight stem cap with an integrated spacer, matching aluminum water bottle cage bolts, and a black aluminum stem cap bolt. The kit is designed for 1 1/8" top steerer tubes and is made of 6061-T6 aluminum. Made in the USA, this precision engineered and machined kit is a great way to add style to your bike.

What We Like
High quality construction
Attractive orange finish
Lightweight design
Innovative top cap feature
Affordable quality
What We Don't Like
Slightly overpriced
#TOP 3

Kbrotech Bike Headset Spacers

Aluminum alloy
Kbrotech Bike Headset Spacers Cover
Kbrotech Bicycle Headset Spacer Aluminium Alloy Bike Stem Headset Spacers Fork Washer Fit for 1 1/8-Inch Stem 2mm 5mm 10mm (8pieces) (Aluminum Alloy)

The Kbrotech Bicycle Headset Spacer set consists of 8 lightweight aluminum alloy spacers, in three different sizes (2mm, 5mm, and 10mm) to fit the 28.6mm front stem fork of various bikes. They are easy to install and help raise the handlebar, providing greater comfort during long rides. The high-quality CNC finished material ensures durability and longevity.

What We Like
Accurate sizing
High-quality finish
Variety of sizes
Durable material
Good price
What We Don't Like
Not much to discuss
#TOP 4

GooDay Bicycle Headset Spacer Set

Bike Headset Spacer
8 PCS
GooDay Bicycle Headset Spacer Set Cover
8 PCS Bicycle Headset Spacer Bike Handlebar Stem Spacers Threadless Aluminum Alloy Headset Stem Spacer Set Fit 1 1/8-Inch Stem For MTB BMX Mountain Road Bikes Cycling 2MM 3MM 5MM 10MM(Black)

The GooDay Bicycle Headset Spacer Set is a must-have accessory for any cyclist. This set includes 8 spacers in 4 different sizes, allowing you to adjust the height of your handlebars to suit your riding style. Made from black anodized aluminum alloy, these spacers are not only eco-friendly but also sturdy and durable. With an inner diameter of 28.6mm, they are compatible with most MTB, BMX, mountain, and road bikes. The lightweight design and easy installation make these spacers a convenient choice. Additionally, the aluminum construction makes them more resistant to corrosion compared to carbon fiber spacers. Whether you're a casual rider or a hardcore off-roader, the GooDay Bicycle Headset Spacer Set is a reliable and versatile option for enhancing your biking experience.

What We Like
Improved riding comfort
Variety of sizes available
Easy to adjust height
Compatible with Fat Tire forks
#TOP 5

Fengek 15 Pcs Carbon Fiber Headset Spacer Kit for Bicycle

Bike Headset
Fengek 15 Pcs Carbon Fiber Headset Spacer Kit for Bicycle Cover
Fengek 15 Pcs Headset Spacer for Bicycle, 7 Sizes Carbon Fiber Road Bicycle Stem Headset Spacers Kit for 1-1/8 Inch Stem, 1mm 2mm 3mm 5mm 10mm 15mm 20mm

The Fengek 15 Pcs Headset Spacer for Bicycle is a premium quality product made of carbon fiber with 7 different sizes, 1-1/8 inch stem and well temperature and impact resistance. These lightweight and durable spacers are perfect for most bicycles including mountain and road bikes, providing a safer riding experience. The automatic cutting technology guarantees a smooth edge and delicate texture, making this accessory a long-lasting solution for amateur riders.

What We Like
Variety of sizes
Lightweight design
High-quality materials
No structural purpose needed
Perfect fit around fork upper
What We Don't Like
Some smaller spacers too thin
Personal bias against composite spacers
#TOP 6

TIKBRO 1-1/8 inch Bike Headset Spacers

DQ01
Black
One Size
TIKBRO 1-1/8 inch Bike Headset Spacers Cover
TIKBRO Bike Headset Spacer Bicycle Stem Spacers 1-1/8 inch Aluminium Alloy MTB Spacers for BMX Road Bikes 15mm 10mm 5mm 3mm 2mm 7pcs

The TIKBRO Bike Headset Spacers are designed for 1-1/8 inch front stem forks, making installation quick and hassle-free. These spacers are crafted from black anodized aluminum alloy, ensuring they are both lightweight and durable. This material not only enhances the look of your bike but also provides long-lasting performance. With a set of seven spacers in various sizes, you can easily adjust your handlebars to the perfect height for a more comfortable ride. Whether you’re riding a mountain bike, BMX, or road bike, these spacers offer precise height adjustments to suit your needs.

What We Like
Lightweight design
Black color blends well
Decent build quality
Variety of sizes included
Tapered bottom spacer bonus
#TOP 7

PLATT Aluminium Alloy Bike Headset Spacers

ZUS-047-7pcs
black
PLATT Aluminium Alloy Bike Headset Spacers Cover
PLATT Bike Headset Spacer Aluminium Alloy Bicycle Stem Headset Spacers Fit 1 1/8-Inch Stem for MTB BMX Road Bikes 2/3/5/10mm(Black 7PCS)

The PLATT Headset Spacers are designed for your 1-1/8" front stem fork, making them a perfect fit for BMX, road, and mountain bikes. Crafted from high-quality aluminum alloy, these spacers are lightweight and resistant to corrosion, weighing only about 35 grams for all seven pieces. You’ll appreciate the anodized finish available in various colors, ensuring both style and durability. With four different sizes, including smaller spacers for precise height adjustments, you can easily customize your bike’s setup to enhance your riding experience.

What We Like
Excellent aesthetics upgrade
Timely delivery
Perfect fit for various applications
High-quality tolerances
What We Don't Like
Thinner spacers may wear quickly
#TOP 8

RaceFace Headset Spacer Kit with Top Cap

47HSSKITALU
Black
RaceFace Headset Spacer Kit with Top Cap Cover
RACE FACE HEADSET SPACER KIT WITH TOP CAP BLACK ALUMINUM

The RaceFace Headset Spacer Kit with Top Cap is a set of 1-1/8" spacers and a top cap, all with Race Face logos. You can choose between the regular aluminum or the ultralight carbon. This kit is perfect for adjusting your bike headset to your desired height and style.

What We Like
Improves bike aesthetics
High-quality aluminum construction
Lightweight and strong
Variety of spacer sizes
Compatible with RaceFace products
What We Don't Like
Does not include top cap screw
Pricey for what it is
#TOP 9

Sumind 9 Pieces Bike Bicycle Carbon Fiber Headset Spacer Kit

Sumind-Carbon Fiber-01
black
Sumind 9 Pieces Bike Bicycle Carbon Fiber Headset Spacer Kit Cover
Sumind 9 Pieces Bike Bicycle Carbon Fiber Headset Spacer Kit 1-1/8 Inch, 2/3/ 5/10/ 15 mm, 5 Size

The Sumind Carbon Fiber Spacer Kit is a versatile set of headset spacers designed to provide adjustable height options for your bike. Made from carbon fiber material, these spacers are not only durable but also resistant to corrosion, making them a reliable choice for long-term use. With 5 different sizes to choose from, ranging from 2mm to 15mm, you can easily find the right height to suit your needs. The smooth surface and exquisite workmanship ensure compatibility with most bicycles. Weighing just 38g in total, these lightweight spacers won't add unnecessary bulk to your bike. Upgrade your biking experience with the Sumind Carbon Fiber Spacer Kit.

What We Like
Great quality carbon fiber
Variety of sizes available
Perfect fit for my bike
Highly recommended by users
What We Don't Like
Extra sizes may be unnecessary
#TOP 10

SAVITA 18pcs Bicycle Headset Spacer Kit

75522
black
SAVITA 18pcs Bicycle Headset Spacer Kit Cover
18pcs Bicycle Headset Spacer Kit, 4 Sizes Bicycle Headset Spacer Aluminum Alloy Bike Handlebar Stem Spacers for 1-1/8" Mountain Bike Road Bike Handlebar (10mm 5mm 3mm 2mm)

Introducing the SAVITA 18pcs Bicycle Headset Spacer Kit, the perfect accessory for your bike. This kit includes 18 high-quality aluminum alloy spacers in 4 different sizes: 10mm, 5mm, 3mm, and 2mm. With this variety of sizes, you can easily customize your bike's handlebar height to suit your preference. Made from durable aluminum alloy, these spacers are built to last and are resistant to wear and tear. Installation is a breeze, and these spacers are compatible with most bikes. Whether you're a mountain biker, road cyclist, or BMX rider, the SAVITA Spacer Kit is a versatile and essential addition to your bike accessories. Upgrade your ride today!

What We Like
Works as described
Good paint quality
Multiple sizes available
Perfect fit for adjustable stem
Effective for handlebar clamps
What We Don't Like
Shorter than original stem
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are bike headset spacers for?

Bike headset spacers are used to adjust the stack height of the handlebars. They come in different sizes and thicknesses to help riders achieve the desired handlebar height and improve their bike's fit and comfort.

2. How many spacers should a headset have?

The number of spacers needed for a headset varies depending on the rider's preference and bike setup. Taller MTB riders may require more spacers to achieve the correct handlebar height. Typically, mountain bikes have a standard 30mm spacer for basic headset settings.

3. Do you need a spacer above the headset?

It is recommended to check the specific requirements beforehand as they can vary. If the steerer tube ends only a few millimeters below the top of the stem, it is generally fine to use a spacer to cover it. However, if the steerer tube is made of carbon, it is advisable to have a little steerer showing above the stem with a spacer to protect it.

4. Are carbon headset spacers safe?

Carbon headset spacers are generally safe to use. Carbon is often stronger than aluminum in compression, depending on the epoxy used. However, it is essential to ensure that the carbon spacers are of good quality and properly installed to ensure safety.

5. Why do you need headset spacers?

Headset spacers play a crucial role in determining the bike's fit, comfort, and efficiency. They help adjust the position of the handlebars by sliding onto the forks' steerer tube. By using headset spacers, riders can achieve a more comfortable and personalized riding position.

6. Should you be able to spin headset spacers?

An effective way to check if the headset has enough tension is by attempting to turn the headset spacers. If they cannot be turned, it indicates that the headset has sufficient tension. Conversely, if the spacers can be turned easily, it suggests that the headset may require more tension.

7. Are 2 inch spacers too much?

It is generally recommended to stay under 2 inches when using spacers. However, it is essential to consider the specific requirements of the bike and the spacers being used. Some OE studs may extend past the spacer's mounting surface, requiring trimming to ensure proper fitment. Additionally, using hub-centric spacers whenever possible can provide a stronger and more secure fit.

8. Are 2 piece spacers safe?

It is not recommended to stack wheel spacers or use multi-piece spacers that have two or more parts that bolt together. It is important to ensure that the inner lug nuts and wheel studs do not protrude beyond the outer surface of the spacer. This helps maintain safety and prevent potential issues or failures.

9. How do I know if I need spacers?

Spacers are used when the wheel offset is not ideal for the desired setup. They can be used to address issues such as narrow axles or insufficient wheel offset, allowing riders to position their tires and wheels where they want them to be under the fender.

10. How do I know if I need volume spacers?

If you frequently experience bottoming out in your suspension but have correctly set sag, adding a volume spacer can help. Volume spacers reduce the air chamber volume and increase the rate of progression in the suspension, making it firmer sooner in the travel and increasing the spring rate in the mid and end-stroke.

11. What are the negative effects of spacers?

Using spacers can have a few negative effects. They can increase the tire scrub radius, altering the vehicle's handling and making slow-speed turns more challenging. Additionally, adding more components to the wheels increases the potential for failure, and there may be increased wear and tear on the suspension.

12. What are the disadvantages of spacers?

Some potential disadvantages of using spacers include increased steering effort due to the wheels being farther apart, reduced ride quality, and additional wear and tear on the suspension. It may also be challenging to find a mechanic who is experienced in working with spacers.

Editor's Notes

During our bike headset spacer research, we found 24 bike headset spacer products and shortlisted 10 quality products. We collected and analyzed 32,166 customer reviews through our big data system to write the bike headset spacers list. We found that most customers choose bike headset spacers with an average price of $8.23.

The bike headset spacers are available for purchase. We have researched hundreds of brands and picked the top brands of bike headset spacers, including Sumind, Wolf Tooth, Kbrotech, GooDay, Fengek. The seller of top 1 product has received honest feedback from 542 consumers with an average rating of 4.9.

Written by
Jason Kiser Avatar

Jason Kiser is an editor who lives in California, he previously worked in a travel agency for ten years, which enabled him to travel a number of interesting countries and experience several different cultures along the way. His range of job and travel experiences grant him expertise in hiking, camping, outdoors and fitness.