Products

Carbon Fiber Construction? High-modulus carbon fiber for lightweight, rigidity, and fatigue resistance—ideal for high-speed cruising and sprints.? Aerodynamic Dimensions? 45mm height cuts wind resistance; 26mm outer width enhances tire support, paired with a tubeless system for reduced rolling resistance and stable handling.? Full Customization? Tailor spoke hole count, upgrade to carbon spokes for efficiency, and choose custom finishes/patterns for a unique look.

Material Advantage: Carbon Fiber Construction Optimized Aerodynamics & Stability: 40mm Rim Height Wide Tire Compatibility & Enhanced Grip: 26mm External Width Tubeless Compatibility: Hassle-Free Durability Comprehensive Performance Upgrade Customizable: The factory can customize the pattern, paint, number of spoke holes, wheel weight, carbon fiber spokes, hubs

Application Scenarios: Perfect for road races, endurance rides and daily training, with 40mm height and 26mm width boosting aerodynamics and stability, ideal for tubular tires.? R&D Technology: Uses Japanese Toray carbon fiber; proprietary layering ensures high strength and lightness (down to 350g/rim), with tubeless-optimized structure.? Production Capacity: Advanced factories produce 10,000+ rims monthly, supporting custom paint, hole counts and spokes for wholesale and private labels.

Our road bike carbon fiber rim: 35mm height, 26mm external width, crafted from carbon fiber with a minimum weight of 350g. It's tubeless-ready, and offers custom decals and carbon fiber weave patterns for a personalized touch. Our factory has been working on bicycle carbon fiber wheels for 10 years and can meet most of the customer's requirements.

* 25*26mm aerodynamic profile slices wind, enabling effortless speed. * Vacuum-integrated design eliminates air leaks and reduces rotational weight for responsive handling. * Disc brake compatibility ensures reliable stopping power in all conditions. * Fully customizable to perfectly match your bike’s specific specifications. * High-modulus carbon construction balances durability and agility, easing climbs and enhancing descents.

This GW60X44TL-UL carbon gravel rim comes with a 60mm deep section, 44mm external width and 37.6mm internal width, offered in two options: hookless straight-side and hooked versions to satisfy different tubeless tire demands. We strictly control its weight at 500±15g, achieving remarkable lightweight performance among deep-profile gravel rims. The refined carbon layup balances solid rigidity and great impact resistance, so it stays stable without deformation on bumpy gravel, muddy and sandy terrain. Its ultra-wide 37.6mm inner bed officially supports tires ranging from 50mm to 65mm. Wide tires expand fully on the rim to enlarge contact area, boost off-road traction and deliver excellent shock absorption, greatly lowering slipping risks during adventure rides. The curved 60mm deep rim optimizes aerodynamics to cut wind drag for faster cruising on flat roads. The two rim profiles serve diverse needs: hookless design provides superior tubeless air tightness and less tire bead abrasion, while the hooked variant works with both tube-type and regular tubeless tires for wider compatibility. Combining lightweight efficiency, aerodynamic advantage and off-road durability, this rim perfectly fits gravel races, long-distance touring and all levels of gravel riders.

As a source factory with over a decade of wheel set production experience, KOIBIKE specializes in integrated manufacturing of rim production, wheel building, and spoke lacing, offering professional OEM/ODM/OBM services. We are proud to launch the D28X30TL/HL-UL mountain bike wheel set: featuring a 28mm depth design that balances rigidity and low wind resistance, paired with a 36mm external width and 30mm internal width to fit various specifications of mountain bike tires—catering to both off-road enthusiasts seeking wide-tire grip and speed-focused riders preferring narrow tires, while delivering maximum stability and handling in complex terrains. The ultra-light version weighs only 480g for efficient climbing with reduced fatigue, and the standard version at 530g strikes a perfect balance between lightweight performance and cost-effectiveness. Equipped with a standard disc brake system, it delivers powerful braking force and precise control, remaining reliable even in rainy, muddy, or other harsh conditions to ensure riding safety at all times. This wheel set is the optimal choice for high-adaptability and high-performance mountain biking, ideal for B2B clients, individual buyers, bicycle shops, and team purchases.

* The AM-MW28X36-29-CS-UL all-mountain wheelset is built around "all-terrain durability and a breakthrough in lightweighting." Its 29-inch hookless rim features a perfect ratio of 28mm depth, 36mm external width, and 30mm internal width. Its short rim depth enhances impact resistance on challenging terrain. * At an ultra-light 1326±30g, its combination of 2g/single KOIBIKE CS-T32 carbon fiber spokes and 330±5g MH-CS320T-Boost hubs achieves a weight reduction of over 12% compared to comparable all-mountain wheelsets (approximately 1500g). *Boost-spec thru-axles (15×100mm front / 12×148mm rear) and a center-lock disc brake system ensure precise braking and structural stability on bumpy terrain. The 24/24 hole straight-pull layout further enhances wheel rigidity, making it an ideal choice for all-mountain (AM) riding, demanding both lightweight climbing and aggressive descents.

1. Dual-Head Design and Full Compatibility T-Head (CS-T50): Increases the contact surface with the T-Head hub by over 35%. This reduces spoke-hub displacement and the risk of loosening in challenging conditions like hill descents and road sprints, making it particularly suitable for racing wheels requiring high stability. Around-Head (CS-A50): Featuring a curved round-head structure, it is compatible with most traditional standard hubs and can be installed without hub modification. It's ideal for upgrading entry-level wheels or performing routine maintenance, breaking the limitation of "specialized carbon spokes only fit specific hubs." Customized Length: Available in a range of 242-291mm, carbon spoke lengths can be precisely matched to rim diameter and hub flange size, for example, 700C road rims (260-280mm recommended), 27.5-inch mountain bike rims (260-280mm recommended), and 12.5-inch mountain bike rims (27.5-inch mountain bike rims). 270-291mm), to meet the wheel assembly requirements of different models.​ 2. Material Combination and Process Innovation Balanced Lightweight and Strength: The 3.5g weight of a single spoke is achieved through a "carbon fiber body + stainless steel threaded nut" combination. The carbon spokes are made of high-modulus carbon fiber (tensile modulus 230GPa), and the stainless steel nuts are made of 304 stainless steel (tensile strength ≥520MPa). This makes them easier to process than all-carbon fiber monolithic structures and avoids stress concentration issues at the carbon fiber-metal connection. Glueless Mechanical Locking Pultrusion: The carbon spokes and nuts are secured together through a mechanical interlocking mechanism, eliminating the need for glue. This eliminates the risk of long-term loosening due to glue aging and simplifies installation, requiring only a standard spoke wrench for complete tightening. The precision of the process ensures an overall tensile strength of 3 kilonewtons (approximately 306 kgf), far exceeding that of traditional steel spokes (approximately 180 kgf). Spoke tension is maintained at a stable 120-130 kgf, and the tension decay rate is ≤5% after long-term use.​ 3. Detailed Design and Durability Flat Carbon Wire Rope Construction: 5.0 ± 0.1mm wide and 0.83 ± 0.1mm thick flat carbon wire ropes reduce wind resistance by 18% compared to round carbon wire ropes (tested at 40 km/h). They also increase the flexural strength of the wire ropes. Under lateral impacts (such as rock scraping during mountain biking), deformation is ≤ 0.2mm, and there is no permanent deformation after loosening. Anodized Black Stainless Steel Nuts: 304 stainless steel nuts are anodized and withstand salt spray tests for over 48 hours, making them resistant to rain, humidity, and other harsh environments. They avoid rusting associated with traditional galvanized nuts and extend maintenance intervals by 60% compared to conventional nuts. Glueless Nipples: Glueless nipples provide dual stability with the mechanical locking mechanism of the spokes. The nipples fit the rim holes with a tolerance of ≤ 0.05mm, reducing unwanted squeaking and improving the overall smoothness of the wheel.