Best Bike Headset Spacers for Mountain Bikes of 2025

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.

The GANOPPER Headset Spacer is an essential accessory for your mountain or road bike. Made of Alloy Aluminum, it comes with a lightweight design that is easy to install, and suitable for 1-1/8", 28.6mm stems and forks. The package includes MTB Aluminum Stem Spacer 5pcs(10mm4,5mm1), headset star nuts1, Stem Top Cap Cover1, Headset Bolt1. You can adjust the appropriate height with different sizes available. The anodized Red and colorfast surface, and ultra-precision diamond blade machine cut provide a smooth surface and exquisite workmanship.

The Spank Spacer Kit is designed to enhance your bicycle's headset fit and function, making your rides more enjoyable. With its stylish brushed anodized finish and laser logo, this kit not only looks good but also improves comfort. You can easily adjust your bike's setup with the included 3mm, 6mm, and 12mm spacer rings, ensuring the perfect fit for your riding style. This kit is specifically made for 1 and 1/8 inch headsets, offering compatibility with a variety of bikes including mountain, BMX, and road bikes. Experience a smoother ride and better performance with this essential accessory.

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.

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.

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!

Upgrade your bike with Farbetter's Carbon Fiber Headset Spacers. The package contains two different sizes, 30mm and 40mm, and both sizes can overlap seamlessly. The spacers are made of woven carbon fiber, making them heat-resistant, impact-resistant, and lightweight. The carbon fiber material is resistant to corrosion, making it more durable and sturdy than aluminum alloy spacers. These spacers are compatible with most mountain bikes, road bikes, and 28.6mm front bar fork bikes, with an inner diameter of about 28.6mm and outer diameter of 34.9mm.

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.

This product includes 8 pieces of bike headset spacers made of anodized aluminum alloy with precise diamond cutting. The size of the spacer is 25.4mm/1 inch in diameter and 5mm/10mm in thickness. These spacers are compatible with 25.4mm front stem forks of MTB, BMX, mountain bike, road bike, etc. You can use them to raise your handlebar according to your needs. Please ensure they meet your requirements before purchasing.

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.