KOIBIKE independently develops and manufactures these 29-inch carbon mountain bike rims. As a leading manufacturer, we have a comprehensive carbon fiber rim production supply chain and can accommodate both bulk and custom orders from B2B customers. Crafted from high-quality carbon fiber, the rims are precision-crafted with a 22mm height and 28mm width, making them compatible with a wide range of mountain bike tires. A lightweight weight of 300 ± 15 grams balances high rigidity and can support riders weighing 95-130 kg. Custom finishes are available, including UD and marble finishes. The factory also offers customized services, including spoke hole counts, providing a one-stop solution from production to after-sales service for bicycle brands and dealers.

Product Features and Advantages

Lightweight and Efficient:

 Ultra-lightweight at 300 ± 15 grams, it's approximately 40% lighter than similar aluminum alloy rims, reducing rotational inertia and improving acceleration and climbing efficiency for a more effortless ride

Strong Load Capacity: 

Designed specifically for riders weighing 95-130 kg, the high strength of carbon fiber and its optimized structural distribution ensure stability and reliability within the load range, handling a variety of mountain bike challenges.

Wide Grip: 

The 28mm width accommodates mountain bike tires from 1.8-2.2 inches, increasing contact patch and enhancing grip on muddy, rocky, and other challenging terrain, providing greater stability during cornering. Diverse paint options: 

UD, marble, 12K, 12K twill, and other finishes offer unique style while also offering excellent wear and scratch resistance, meeting diverse aesthetic and practical needs.

Precise Disc Braking: 

Compatible with disc brake systems, the brake pads are optimized for quick braking response and excellent heat dissipation, ensuring stable braking even on long descents and ensuring safe riding.

Strict Quality Control:

KOBIKE do 100% tire pressure(150 PSI), flatness(＜0.2mm) and roundness(＜0.2mm) inspections before shipping, also offering 2 years warranty for our carbon rims.

Product Structure

Spoke Hole Design: 

Available in a variety of spoke hole counts, with carbon fiber reinforcement and precise distribution to ensure uniform force distribution and enhance overall rim rigidity. Suitable for wheelsets of varying rigging, these options are ideal for handling the complex forces of mountain terrain.

Rim Appearance and Finish: 

A variety of paint finishes create unique looks. UD highlights the texture of carbon fiber, marble creates a unique pattern, and 12K and 12K twill create a layered effect. The coating is wear-resistant and scratch-resistant, resisting mountain sand and rocks for long-lasting beauty. 

Braking Edge Construction: 

The disc brake-specific braking edge features a smooth, flat surface that mates securely with the brake pads, ensuring stable friction during braking and excellent heat dissipation, ensuring reliability under continuous braking.

Rim Structure:

The 22mm-tall rim is constructed from multiple layers of carbon fiber woven in the direction of force, delivering lightweight performance while enhancing torsional and compressive strength. The 28mm width enhances lateral stability, and the 29-inch size takes advantage of the larger wheel diameter for enhanced maneuverability.

Load-Bearing Design: 

Targeted for riders weighing 95-130kg, the rim features reinforced treatment in key areas and optimized carbon fiber stacking density to ensure deformation resistance under heavy loads and extend service life.

Application Areas

Application areas for the XC-M22X28HL-29ER-UL carbon bicycle rim:

Mountain Cross-Country Cycling:

The 29-inch wheel diameter and wide design are ideal for the complex terrain of mountain cross-country cycling, allowing riders to easily navigate obstacles and provide a smooth riding experience.

Endurance and Long-Distance Cycling: 

The combination of lightweight and strong load-bearing properties allows for the physical exertion of long rides, while ensuring stable performance for optimal performance in endurance events. Professional Team Training:

 Its precise braking and reliable structure meet the high-intensity training needs of professional teams, helping riders improve their technique and performance.

Complete Bicycle Package: 

As a core component of high-end mountain bikes, it enhances overall performance and aesthetics, appealing to consumers who value quality and individuality.

Cycling Equipment Upgrade: 

It provides a premium option for cycling enthusiasts upgrading their existing bikes, significantly improving performance and adapting to more intense mountain biking.

Technical Parameters

Customized Weaves & Finishes:

Customized Holes:

Weight Check:

Clean burrs ＆ residues

Rim Diameters Check:

Cleaning

Packing

XC-M22X28HL-29ER-UL Product Show