This carbon fiber mountain bike rim comes from a factory with 10 years of professional manufacturing experience. With long-term accumulated technologies and craftsmanship, it ensures the reliable quality of each product.

Made of high-quality carbon fiber material, it not only offers the advantage of lightweight, making riding more effortless and acceleration quicker, but also boasts excellent strength and impact resistance. It can easily handle complex terrains such as rocks and tree roots during off-road rides, and its durability is far superior to that of traditional materials.

Meanwhile, it supports comprehensive personalized customization. Whether it's color coating, exclusive logos or fine-tuning of detailed parameters, it can be tailored according to your preferences, allowing the rim to not only meet performance needs but also showcase a unique style.

Product Features and Advantages

Premium Carbon Fiber Performance:

Crafted from high-grade carbon fiber with a multi-layer woven structure, the rim achieves an exceptional balance of lightness and strength. Compared to traditional aluminum rims, it reduces overall weight by up to 30%, significantly cutting rotational inertia to enable quicker acceleration and easier climbs—even on steep, technical ascents. Its inherent toughness, reinforced by precision resin bonding, resists impacts from sharp rocks, gnarly roots, and rough off-road terrain, maintaining structural integrity through repeated heavy use for long-lasting durability.

Off-Road-Optimized Structure:

Designed specifically for mountain biking, the rim features a 30mm outer width and 22mm height profile, engineered to handle the demands of off-road trails. This geometry provides stable support for 1.9"-2.35" wide tires, allowing lower tire pressure to enhance grip on loose dirt, mud, or gravel. The asymmetric offset design balances spoke tension across the wheel, minimizing flex during hard braking or high-speed cornering on uneven surfaces—making it a reliable choice for aggressive trail, enduro, or XC riding styles.

Comprehensive Personalization:

The rim offers extensive customization options to match individual preferences, from custom color finishes (including matte, gloss, or metallic shades) and laser-etched unique logos to tailored minor parameter adjustments (such as spoke hole count for specific hub compatibility). Riders can even opt for gradient or pattern-based designs, creating a rim that not only performs well but also stands out as a reflection of their personal style.

Reliable Quality from Experienced Manufacturer:

With 10 years of professional experience in manufacturing carbon fiber components, we craft each rim with refined layup techniques and strict quality control. We conduct ultrasonic testing to check for internal defects and pressure testing to ensure structural stability. Every rim undergoes 50+ hours of real-world trail testing before leaving our factory—this long-standing expertise guarantees consistent reliability, so you can ride with confidence in its performance.

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

The rim’s structure is meticulously engineered to excel in off-road conditions, with key design elements tailored for performance and durability

Dimension Optimization:

Boasting a 30mm outer width and 22mm height, this profile strikes a perfect balance for mountain biking. The 30mm width provides ample support for 2.2"-2.5" wide tires, allowing riders to run lower tire pressure without compromising stability. This not only enhances grip on loose surfaces like dirt, mud, or gravel but also improves shock absorption over bumpy terrain, reducing fatigue during long rides. The 22mm height, meanwhile, ensures a rigid foundation for power transfer while keeping the rim lightweight enough to maintain agility—critical for quick direction changes and technical maneuvers on trails.

Asymmetric Offset Design:

A standout feature is the rim’s asymmetric offset layout, specifically developed to address the uneven forces exerted by disc brake systems. By strategically offsetting the spoke holes, we balance tension across all spokes, eliminating uneven stress that can cause wheel flex or spoke failure. This design minimizes deformation during hard braking or high-speed cornering on rough ground, ensuring the wheel retains its true shape and responsive handling even under extreme loads.

Reinforced Edges:

The rim’s bead seats and sidewalls are reinforced with additional carbon fiber layers, enhancing resistance to impacts from rocks, curbs, or accidental drops. This reinforcement prevents dents or cracks that could compromise tire retention, a vital safety consideration for aggressive off-road riding.

Application Areas

Application areas for the XC-MA22X30HL-27.5ER carbon bicycle rim:

• Mountain Trail Conquests:

On classic mountain trails, from forest singletrack to rocky ascents, the 30mm outer width shines. It provides robust support for 1.9"-2.35" mountain tires, allowing riders to drop tire pressure for enhanced grip on loose dirt, mossy rocks, or wet roots. The 22mm height keeps the rim lightweight, ensuring quick acceleration when sprinting out of tight corners or tackling short, steep climbs. Even on uneven sections with sudden drops or ruts, the asymmetric offset design maintains spoke tension balance, preventing wheel flex and keeping handling precise—critical for avoiding wipeouts on technical descents.

• Aggressive Off-Road Adventures:

For extreme off-road scenarios—think rock gardens, dry creek beds, or steep, rutted downhill sections—the rim’s reinforced carbon fiber structure and reinforced edges take center stage. It absorbs impacts from sharp rocks and jagged obstacles without denting or cracking, while the wide profile ensures the tire stays seated securely, even when hitting bumps at speed. The asymmetric layout further proves its worth here: during hard, repeated braking on steep descents, it minimizes wheel warping, keeping the rim true and the ride stable, so you can push harder through rough patches without hesitation.

• All-Mountain Versatility: 

Whether you’re mixing steep climbs with fast, flowy descents or navigating a mix of hardpack and loose gravel on all-mountain routes, this rim adapts seamlessly. Its lightweight build reduces fatigue on long climbs, while the wide tire support and impact resistance mean you can charge downhill with confidence, knowing the rim can handle whatever the mountain throws your way.

Technical Parameters

Customized Weaves & Finishes:

Customized Holes:

Weight Check:

Clean burrs ＆ residues:

Rim Diameters Check:

Cleaning:

Packing:

XC-MA22X30HL-27.5ER Product Show