Rims, Wheels

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

The KOIBIKE D50X30TL/HL-UL is a high-performance road wheelset. Its 50mm rim depth and 30mm external width ensure excellent aerodynamic efficiency. Its 24mm internal width is compatible with 28–50c tires, adapting to a wide range of riding conditions. The straight-rim version is designed for tubeless tyres and offers excellent sealing, while the hook-rim version is compatible with both tubeless and clincher tyres, offering greater flexibility. Each rim weighs a mere 400g ± 15g. Made from Japanese Toray T700 to T1100 carbon fiber, the UD paint treatment not only highlights the carbon fiber texture but also provides scratch and sun protection.

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.

The 60mm lightweight disc brake road wheel is designed with aerodynamic performance at its core. Its wind-tunnel-optimized 60mm rim depth further reduces high-speed drag compared to a 55mm rim depth, improving cruising efficiency and making it ideal for both flat-track racing and long-distance events. The 21mm internal width is compatible with tires sized 23-47cm, while the streamlined 30mm external width creates a low-drag profile when inflated, balancing grip and stability. The 28mm brake track is specifically designed for disc brakes, providing ample heat dissipation to prevent thermal fade from continuous braking. The lightweight construction, weighing 450±15g per lap, reduces rotational inertia, ensuring agility even in climbing and accelerating. The UD paint finish features a distinct carbon fiber texture and a multi-layer UV treatment for scratch and UV resistance. It exudes a minimalist, mechanical aesthetic while also withstanding intense use, showcasing its aerodynamic, lightweight, and durable advantages 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.

Core Competition Design： A 50mm rim depth improves high-speed cruising by 10% compared to a 45mm rim depth. Its lightweight construction (lap weight: 385±15g) reduces rotational inertia for balanced performance. Dimensional Advantages： The 21mm internal width stably supports tires ranging from 25-47cm. The streamlined 30.5mm outer width creates a low-drag, rounded cross-section when inflated, balancing grip and high-speed stability. The 27.94mm brake track width is designed specifically for disc brakes, providing ample heat dissipation to effectively prevent thermal decay caused by continuous braking and ensure braking safety. Appearance and Craftsmanship： The unique gold marble finish, created through a multi-layer UV curing process, creates a three-dimensional, layered texture. It not only exudes a premium visual quality, but also offers excellent scratch and UV resistance, ensuring long-lasting aesthetics.

Extreme Lightweight Advantage: The D45x26T rim weighs only 320-330 grams per rim, significantly reducing wheel load while maintaining structural strength, making it ideal for competitions seeking extreme performance. Excellent Compatibility: As a tubular rim, its 45mm height and 26mm outer width perfectly complement tubular tires, fully leveraging their advantages of low rolling resistance and high comfort. Competitively Suitable for Road Races: The lightweight carbon fiber construction significantly reduces rotational inertia, making it suitable for road races, time trials, ITT individual time trials, hill climbs, and circuit races.