The Koozer 12s MS MTB Freehub Adapter is designed to enhance your mountain biking experience by providing versatile compatibility with various speeds. Constructed from durable aluminum alloy, this adapter is lightweight yet robust, ensuring it can withstand the rigors of off-road cycling.

It is compatible with hubs featuring 32, 36, or 28 holes and can be used for both front and rear positions on your bike. This freehub adapter allows seamless integration with an array of speed configurations including 8, 9, 10, 11, and even 12-speed systems.

Its thoughtful design makes it a practical choice for cyclists looking to upgrade or modify their existing setups without needing to invest in entirely new hubs. The Koozer brand has built a reputation for quality in the bearing hub category; thus you can expect reliable performance from this product.

The Koozer Tool-free Hub Endcap Adapter Kit is designed to accommodate various hub sizes, making it a versatile choice for cycling enthusiasts. This kit includes adapters for multiple axle configurations, including 9x100mm, 10x135mm quick release (QR), and 15x100mm as well as thru-axle options like 12x142mm and 12x135mm.

Crafted from durable aluminum alloy, this product ensures longevity and reliability while maintaining a lightweight profile. The hub features a total of 32 holes suitable for disc brakes, providing solid performance and compatibility across different bike setups.

With its tool-free design, the Koozer Hub Endcap Adapter Kit facilitates easy installation and adjustments without requiring specialized tools. It fits both front and rear positions of the bike’s wheel system.

The freehub is compatible with HG systems, catering to a wide range of cyclists' needs.

The Koozer MTB Hub Tool-free Endcap Converter Adapter is a versatile component designed for mountain biking enthusiasts. This hub features an aluminum alloy construction, ensuring durability and lightweight performance.

It accommodates 32 holes, making it suitable for various wheel configurations. The adapter supports multiple axle standards, including 9x100mm Quick Release (QR), 10x135mm, 15x100mm Thru Axle (TA), and the Boost spacing of 12x142mm and 12x148mm.

Designed for both front and rear positions, this hub is compatible with disc brake systems, providing reliable stopping power on rugged terrains. The freehub is of the HG type, which allows for efficient power transfer during rides.

The Koozer 12S Micro Spline Freehub Adapter is designed for mountain bike enthusiasts seeking a reliable and versatile hub solution. This adapter is compatible with a variety of Koozer hubs, including the XM490, BM440, and Pro MF480 models.

It accommodates multiple drivetrain speeds, functioning seamlessly with 8, 9, 10, 11-speed XD systems. Made from durable aluminum alloy, the adapter ensures longevity while maintaining optimal performance on rugged terrains.

This product supports various hub hole configurations—28, 32, or 36 holes—making it adaptable for different bicycle setups. Available in both front and rear positions and compatible with standard quick-release (QR) or thru-axle systems (THRU), it offers flexibility depending on your bike's specifications.

Additionally, the design supports disc brake systems to enhance stopping power in challenging conditions.

The Koozer MTB Hub Cassette Body is designed to accommodate a wide range of bicycle setups, featuring compatibility with Hyperglide (HG) systems for 8-11 speed and XD Micro Spline (MS) for 12-speed configurations.

Constructed from durable aluminum alloy, this hub offers a robust solution for rear wheel applications, ensuring both strength and lightweight performance. The hub is available in various hole configurations—28, 32, or 36 holes—allowing riders to choose the optimal setup for their needs.

This model supports both Quick Release (QR) and Thru Axle (TA) options, catering to different bike frame requirements. It is specifically built for use with disc brake systems, enhancing stopping power and control during rides.

The hub's freehub compatibility spans MS/HG/XD formats, making it versatile enough to fit various drivetrain systems including NX, GX, XX1 XG Eagle.

The Koozer XM390 is a high-performance front hub designed for mountain biking enthusiasts, featuring a robust 15x110mm Boost thru-axle configuration. With 28 holes, this hub provides compatibility for various wheel builds and ensures reliable strength and stability on diverse terrains.

The design accommodates six bolt rotor mounting, making it suitable for a wide range of braking systems, particularly beneficial for heavy cross-country trails and e-bikes that demand superior braking performance.

Constructed with high-quality materials, the XM390 hub is engineered to withstand the rigors of intense riding while maintaining optimal functionality. Its precision bearings contribute to smooth rolling efficiency and reduced friction, enhancing overall ride quality.

The Boost spacing allows for improved wheel stiffness and better tire clearance, ensuring that riders can tackle challenging trails without compromising on performance.

The Koozer XM490 Pro HG Rear MTB Hub is designed for versatility and performance, catering to various mountain biking needs. This hub features a 32-hole design, accommodating a wide range of spoke configurations for durability and strength.

It supports multiple axle standards, including 5x135mm Quick Release (QR), 10x135mm, and the modern TA12x142mm Thru Axle setup, making it compatible with various bike frames. The hub is engineered to work seamlessly with Hyperglide systems, supporting both 10-speed and up to 12-speed drivetrains, providing smooth shifting performance.

Constructed with a CrMo axle for enhanced strength and reliability, the Koozer XM490 also boasts precision bearings that ensure longevity and reduced friction during rides. Its lightweight design contributes to overall bike performance without compromising on robustness.

The Koozer XM490pro Boost Front MTB Hub is designed for mountain biking enthusiasts seeking a reliable and high-performance component. This hub features a 15x110mm through axle, providing excellent stiffness and stability for improved handling on rough terrain.

With 28 holes, it accommodates various rim configurations and supports building strong, durable wheels tailored to your riding style. Built with precision engineering, the hub incorporates six bolt disc mounting options, ensuring compatibility with a wide range of brake systems.

The two sealed bearings contribute to the smooth operation and longevity of the hub while minimizing maintenance requirements. This design not only enhances performance but also offers protection against dirt and moisture, making it suitable for diverse riding conditions.

The Koozer XM490pro is crafted from high-quality materials that ensure strength without adding unnecessary weight—an essential consideration for any serious mountain biker. Its sleek design complements modern bike aesthetics while providing robust functionality.

The Koozer Hub Endcap Adapter Kit is designed specifically for the XM490, XM460, and XM450 bike models, offering versatile compatibility with various axle configurations. This kit features a size of 135mm and accommodates 32 spoke holes, making it an ideal choice for those looking to upgrade or repair their bike hubs.

The endcap is compatible with both quick-release (QR) axles and thru-axle systems, supporting multiple configurations such as 5x100mm, 10x135mm QR, 15x100mm, 12x142mm thru-axle, and even a conversion option for 12x135mm.

Constructed from durable aluminum alloy material, this hub endcap ensures longevity while maintaining performance efficiency. It is designed for use in the front position of the bike and supports disc brake systems.

The freehub type is HG (Hyperglide), which provides smooth gear shifting during rides. Additionally, this adapter kit allows spoke hole numbers ranging from 29 to 36 holes.

The Koozer XM490 Pro MTB Hubs are designed for mountain biking enthusiasts seeking durability and performance. Constructed with a new 30 CRMO axle, these hubs maintain the lightweight profile of the original XM490 while offering increased strength to handle more intense riding conditions.

The hubs feature an impressive array of options, including a 36-hole configuration in various colors such as black, red, blue, purple, green, gray, orange, and other vibrant electroplated finishes—ensuring that riders can select a style that suits their preferences.

The Koozer XM490 Pro is compatible with multiple specifications: front hub options include 5x100mm and 15x100mm; rear configurations range from 5x135mm to 12x142mm. Additionally, it supports Shimano's 11-speed system as well as Shimano Micro Spline and SRAM XD freehub standards for those looking to upgrade their drivetrain with ease.

With its innovative design featuring six pawls and a robust 72-tooth engagement ratchet system for quick response during rides across challenging terrains.