Bike Rim

*The RH-CS275T-DB road hub is designed with "lightweight and high efficiency for road racing + full carbon spoke compatibility." It reduces wheel rotational inertia by 22% compared to similar hubs during both flat cruising and climbing sprints. *An ultra-light total weight of 279 ± 15g delivers a perfect balance of lightweight and rigidity. *Supports seamless integration with T-head and round-head carbon spokes, offering both steel ball bearings (default, workhorse) and ceramic bearings (performance upgrade). Compatible with Shimano HG/MSR, Campagnolo N3W, and SRAM XDR multi-freehubs, and customizable laser engraving is also available. *The disc brake system ensures stable braking in the rain, creating a carbon spoke wheel core that combines "racing-grade drivetrain with personalized fit" for road cycling.

The G52X36TL-UL gravel rims, built on a 29-inch wheel diameter, feature a 52mm depth and 36mm outer width, achieving breakthroughs in both aerodynamics and stability for gravel riding. At an ultra-lightweight 455 ± 15 grams, they're approximately 12% lighter than similar gravel rims, significantly reducing rider fatigue. A wide tire pressure range of 30-60PSI accommodates tires from 35-55C , with a rider weight limit of 125kg. Available in a variety of finishes, including marble, they offer a new option for gravel riding that combines performance and style.

These 25mm high, 100mm external width, and 95mm internal width snow rims are a true "buoyancy weapon" for snow riding. The extra-wide internal width is suitable for giant snow tires, increasing the contact area by over 60% compared to standard rims, making them easy to navigate deep snow. The 25mm low profile design enhances handling flexibility, and the UD paint finish remains scratch-resistant and abrasion-resistant even in temperatures as cold as -30°C. The lightweight weight of 750±15g and high rigidity combine to provide powerful performance for snow riding.

The KOIBIKE FB25X65-26ER is an ultra-wide carbon fiber snow rim designed for polar expeditions and all-terrain adventures. Its 25mm rim depth and 65mm outer width, along with a redesigned tire support structure, accommodate ultra-wide snow tires from 3.2-4.5 inches, delivering a "floating" maneuverability on loose snow, sand, and ice. Each rim weighs only 600g (±15g) and is molded from high-modulus Toray carbon fiber. A variety of paint finishes, including UD, marble, 12K, and twill, are available for customization. Directly manufactured in KOIBIKE's own factory, it offers consistent quality and manageable delivery times, making it an ideal OEM/ODM choice for high-end snowmobile brands and the aftermarket.

KOIBIKE's FB25X80-26ER Disc Brake Snow Rim (Fat Rim) features a 25mm height and an extra-wide 80mm outer width, making it suitable for extra-wide snow tires. It offers anti-slip and cold-resistant properties, enhancing flotation and grip on the snow. Weighing an ultra-light 680±15g, it combines lightweight, rigidity, and scratch and wear resistance. Its vacuum-tight design allows for easy installation and excellent airtightness. With a maximum load capacity of 120kg, it meets the needs of various riders and is a high-performance choice for snow riding.

The D40X30TL/HL-650B-UL ultra-lightweight disc brake road wheel is designed for 27.5-inch (650b) wheels, featuring a UD paint finish that exudes a carbon fiber texture. Its 40mm rim depth and 30mm external width provide aerodynamic balance, while its 24mm internal width accommodates a wide range of tires. The straight rim is designed for tubeless tyres, while the hooked rim is compatible with both tubeless and clincher tyres. The 30mm braking rim provides stable braking, and at an ultra-lightweight weight of 345±15g, the ETRTO bead seat diameter precisely matches the 521mm ERD, enhancing riding efficiency and compatibility. 650b road wheelset rim brake/27 inch road bike rims/27 inch road bike rims

The D45X30TL/HL-UL lightweight disc brake road wheelset features a UD paint finish, showcasing a delicate carbon fiber texture and visually appealing texture. The 45mm rim depth provides responsive and agile handling. The 24mm internal width and 30mm external width achieve balanced aerodynamic performance. The straight-edge rim is tubeless-ready for excellent sealing, while the hook-edge rim is compatible with both tubeless and clincher tires, offering riders a wide range of riding options. The lightweight design of 385±15g enhances riding efficiency and adaptability. Tubeless ultral weight rim carbon road fork rim brake/road bike Tubeless ultral weight rim wheels 700c rim brake

This 45mm lightweight disc brake road rim is made from Japanese Toray carbon fiber cloth for enhanced rigidity and lightweight performance. Its UD paint finish creates a simple carbon texture, balancing durability with visual appeal. Its 21mm internal width is compatible with tires from 23-47cm, making it suitable for a wide range of riding situations. Its 30mm outer width, combined with a 45mm rim depth, provides ample heat dissipation while balancing aerodynamic performance and maneuverability. The 28mm brake track is specifically designed for disc brakes, ensuring stable and rapid braking while minimizing rim damage. Its lightweight design, with a single-turn weight of 360±15g, reduces rotational inertia for more agile climbing and acceleration, making it ideal for both racing and training.

Unlike "full-height" rim designs that pursue the ultimate in low drag, the 55mm rim depth represents a rational aerodynamic approach: it doesn't attempt to beat a 90mm deep rim in a wind tunnel, but rather precisely targets the 20–45 km/h speed range most frequently encountered in real-world riding. By optimizing the leading edge curvature and trailing edge breakaway point, this achieves delayed airflow separation. Combined with a 21mm internal width that optimally supports modern 25–28cm tires, this creates a "bead-to-bead aerodynamic profile" that maintains steering neutrality at crosswind angles of 10°–15°, reflecting the design shift from "data-first" to "perception-first." With a 21mm internal width and a 31mm outermost width, the streamlined profile features uniform Toray carbon fiber layup, ensuring a low-drag profile for optimal grip and stability. The 28mm brake track is designed specifically for disc brakes, combining heat resistance with ample heat dissipation to minimize thermal decay from continuous braking. The low weight of 420±15g per lap is achieved thanks to its high modulus, low moment of inertia, and agile acceleration on hills. The gold marble-patterned finish, treated with a multi-layer UV treatment, matches the carbon fiber's texture and is scratch- and UV-resistant, showcasing its lightweight, aerodynamic, and premium feel for both racing and training.