Best Carbon Fiber Bike Headset Spacers of 2025

Jason Kiser Avatar
Jason Kiser
Last Updated: Jan 5, 2025

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Carbon fiber bike headset spacers are a popular choice among cycling enthusiasts. These spacers are lightweight and durable, making them ideal for use in high-performance bikes. Made from high-quality carbon fiber materials, these spacers provide excellent strength and stiffness, allowing for improved handling and performance on the road. They come in a range of sizes and thicknesses, allowing cyclists to customize their bike's geometry to their exact specifications. Whether you're a professional cyclist or simply looking to upgrade your bike's performance, carbon fiber headset spacers are an excellent choice.

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
BUCKLOS 11PCS Headset Spacer Cover #TOP 2
BUCKLOS 11PCS Headset Spacer
ftb score rating icon 9.7
Fengek 15 Pcs Carbon Fiber Headset Spacer Kit for Bicycle Cover #TOP 3
Fengek 15 Pcs Carbon Fiber Headset Spacer Kit for Bicycle
ftb score rating icon 9.5

Top 10 Carbon Fiber Bike Headset Spacers

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
Includes 7 different sizes of spacers for precise height adjustments
Made of woven carbon material, light in weight and durable to use
Corrosion-resistant and has good temperature resistance

BUCKLOS 11PCS Headset Spacer

Shiny
BUCKLOS 11PCS Headset Spacer Cover
BUCKLOS 11 PCS Bike Headset Spacer Aluminum Alloy/Carbon Fiber 20 15 10 5 3 2 mm for Bicycle, 1-1/8 Inch Fork Handlebar Stem Spacers Threadless, fit in MTB Road BMX Folding Bikes.

Upgrade your bike with the BUCKLOS Spacer. This package includes 11 headset spacers in 6 different sizes, ensuring you have the right fit for your bike. Made with high-quality materials, you can choose between carbon fibre or aluminum alloy spacers. The carbon fibre spacers are lightweight and durable, while the aluminum alloy spacers come in a variety of stylish colors. With an inner diameter of 1-1/8", these spacers are suitable for most bikes. The automatic cutting technology ensures smooth edges and a fine texture, making these spacers long-lasting and resistant to damage. Trust in the BUCKLOS brand and enjoy an unbeatable price. Upgrade your bike today!

What We Like
Six different sizes
High-quality materials
Lightweight and durable
#TOP 3

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
Lightweight and durable carbon fiber material
7 different sizes for a customized fit
Smooth edge and delicate texture for long-lasting use
#TOP 4

Azarxis Carbon Fiber Bicycle Headset Spacer 12 Pcs

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Azarxis Carbon Fiber Bicycle Headset Spacer 12 Pcs Cover
Azarxis Carbon Fiber Bicycle Headset Spacer 12 Pcs Bike Handlebar Stem Spacers Set Fit 1-1/8 Inch Stem for MTB BMX Mountain Road Bikes Cycling 2mm 3mm 5mm 10mm (Carbon Fiber - 12 Pcs)

Azarxis Carbon Fiber Spacer Set is a versatile accessory for your bike that allows you to adjust the height of the handlebar to suit your riding style. This set includes 12 pieces of spacers in four different sizes - 2mm, 3mm, 5mm, and 10mm. Made of carbon fiber, these spacers are not only lightweight but also offer high strength, high temperature resistance, and good impact resistance. With automatic cutting and smooth edges, they are suitable for most road bikes. Whether you need to fine-tune your bike's handlebar height or want to achieve a more comfortable riding position, Azarxis Carbon Fiber Spacer Set provides the flexibility and durability you need.

What We Like
Versatile
Lightweight
Durable
#TOP 5

EMVANV 8pcs Carbon Fiber Bicycle Spacers

EMVANV
17066861076018
Black
free size
EMVANV 8pcs Carbon Fiber Bicycle Spacers Cover
EMVANV 8pcs Bicycle Stem Spacers, Carbon Fiber Road Bicycle Headset Spacer Bike Front Fork Stem Spacers Professional Cycling Accessories 2/3/5/8mm(Black)

The EMVANV Bicycle Stem Spacers come with eight pieces in four different sizes (2mm, 3mm, 5mm, and 8mm), allowing you to customize your bike's height to fit your riding style perfectly. These spacers are designed to be used with headsets, stems, and forks, giving you flexibility and precision for your cycling needs. With an inner diameter of 28.8mm, they fit most bikes, including road and mountain bikes. Made from lightweight and durable carbon fiber, these spacers provide strength and resistance to impact, making them an excellent choice for avid cyclists.

What We Like
Customizable height adjustment
Lightweight carbon fiber construction
Compatible with most bike types
Durable and impact-resistant
#TOP 6

LLOUSSAK 11 Pcs Carbon Fiber Headset Spacers

LLOUSSAK
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Black
LLOUSSAK 11 Pcs Carbon Fiber Headset Spacers Cover
11 Pcs Headset Spacer for Bicycle, 7 Sizes Carbon Fiber Road Bicycle Stem Headset Spacers Kit, Bike Stem Spacers for 1-1/8 Inch Stem(1mm/2mm/3mm/5mm/10mm/15mm/20mm)

The LLOUSSAK Headset Spacers kit includes 11 spacers in various sizes, ensuring you have the right fit for your bicycle. Made from lightweight and durable carbon fiber, these spacers are designed to withstand the rigors of outdoor cycling while maintaining their shape. The finely crafted edges and textured surface enhance performance, making them a reliable choice for cycling enthusiasts. With a standard inner diameter of 1-1/8 inches, these spacers are compatible with most mountain and road bikes, providing versatility for your biking needs. Remember to check your size before purchasing for optimal results.

What We Like
Multiple size options
Lightweight carbon fiber
Durable and long-lasting
Compatible with most bikes
#TOP 7

ONGHSD Carbon Fiber Bike Headset Spacer Kit

C10HSD
ONGHSD Carbon Fiber Bike Headset Spacer Kit Cover
ONGHSD 9 Pieces/Set Carbon Fiber Bike Headset Spacer Kit 1/2/3/5/8/10/15/20/30mm MTB Bike Headset Rings Bicycle Headset Spacer Kit Fits for 1 1/8 Inch Road Mountain Bike Stem Spacers

This carbon fiber bike headset spacer kit includes 9 different height sizes ranging from 1mm to 30mm, allowing for precise height adjustment to meet your needs. The smooth incision edge ensures a tight fit, and the woven carbon fiber material offers a lightweight, temperature-resistant, and corrosion-resistant alternative to aluminum alloy spacers. With an inner diameter of approximately 28.6mm and external diameter of 34.9mm, this kit is compatible with most bicycles, including mountain, road, MTB, and BMX bikes.

What We Like
Precise height adjustment with 9 different height sizes
Smooth incision edge for tight fit
Lightweight and temperature-resistant carbon fiber material
#TOP 8

Farbetter Carbon Fiber Headset Spacer Kit

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Farbetter Carbon Fiber Headset Spacer Kit Cover
Farbetter 12 Pieces Bike Carbon Fiber Headset Spacer Bicycle Stem Spacer Kit 1-1/8 Inch 20/15/10/8/5/3/2/1mm, 8 Sizes

The Farbetter Headset Spacer Kit offers eight different sizes, ranging from 1mm to 20mm, allowing you to make precise adjustments to your bike's headset. Made from woven carbon fiber, these spacers are not only lightweight but also heat and impact-resistant, ensuring durability. You will appreciate how these spacers resist corrosion, making them a reliable choice for various biking conditions. With their smooth edges and seamless stacking, they provide a sleek appearance, enhancing your bike's overall look while maintaining functionality.

What We Like
Multiple size options
Durable carbon fiber material
Corrosion-resistant
Sleek design
#TOP 9

OMNI Racer 1" Carbon Fiber Headset Spacer Set

OMC3101-20Matte
Matte
OMNI Racer 1" Carbon Fiber Headset Spacer Set Cover
OMNI Racer 1" Worlds LIGHTEST Carbon Fiber Headset Spacer Set: 2,3,5,10,15,20mm (Matte)

The OMNI Racer 1" Carbon Fiber Headset Spacer Set is the lightest on the market, weighing in at only 24.6g for the entire set. The set includes six different heights, ranging from 2mm to 20mm, which fit a standard 1" inside diameter and 31.65mm outside diameter. These spacers are perfect for cyclists who want to reduce weight on their bikes and achieve a custom fit.

What We Like
Lightest headset spacer set available
Included heights offer custom fit options
Carbon fiber material reduces overall bike weight
#TOP 10

VANSIHO Carbon Fiber Headset Spacers

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Small
VANSIHO Carbon Fiber Headset Spacers Cover
VANSIHO Carbon Fiber Headset Spacers for Road Bike Mountain Bike, 1-1/8 Inch, 7 Sizes

The VANSIHO Headset Spacers are a versatile set of 11 carbon fiber spacers available in seven different thicknesses. This variety allows you to customize your bike’s fit to enhance comfort during rides. Made from high-quality carbon fiber, these spacers are both lightweight and durable, ensuring they won't easily deform over time. They are designed to fit most road, mountain, and BMX bikes, making them a practical choice for many cyclists. Installation is straightforward, requiring no special tools—just replace your original headset cap and tighten the bolts to get started.

What We Like
Lightweight carbon fiber material
Universal fit for various bikes
Easy installation process
Improves riding comfort
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Do I need spacers on my headset?

Put simply, headset spacers enable you to easily adjust the height of your handlebars, which is an essential element of bike fit for BMX, MTB and road riders. In the particular case of the latter (road cycling), the correct bar height is key for comfort and performance.

2. How many spacers does a carbon steerer have?

Headset spacers. Dear Lennard, I have seen several references that suggest that 30mm of spacers below the stem is the maximum you should have for a full carbon fork steerer tube.

3. Do you need spacers on steerer tube?

The clamp bolts of the stem on the steerer tube in a threadless headset setup are what holds the whole assembly together. Spacers below the stem are required to eliminate vertical play. Spacers above the stem are only required for aesthetics.

Editor's Notes

During our carbon fiber bike headset spacer research, we found 24 carbon fiber bike headset spacer products and shortlisted 10 quality products. We collected and analyzed 21,194 customer reviews through our big data system to write the carbon fiber bike headset spacers list. We found that most customers choose carbon fiber bike headset spacers with an average price of $7.51.

The carbon fiber bike headset spacers are available for purchase. We have researched hundreds of brands and picked the top brands of carbon fiber bike headset spacers, including Sumind, BUCKLOS, Fengek, Azarxis, EMVANV. The seller of top 1 product has received honest feedback from 550 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.