The DW35X28TL-CS-UL wheelset is a lightweight, carbon fiber spoked wheelset designed for versatile riding. Its core advantage lies in its "unprecedented balance of low-profile aerodynamics and all-terrain compatibility." The rims are constructed from Toray T800-grade carbon fiber using a gradient layup process. The 35mm rim depth strikes the optimal balance between aerodynamic efficiency and maneuverability—180 grams lighter than a 50mm-deep rim and 9% lower drag than a 25mm-deep rim. The 28mm external width + 21mm internal bead design provides ample support for 25-40cm tires, preventing bulging after wide tire installation. Tubeless-ready tires offer a 20% improvement in sealing compared to narrower internal width wheels.

The entire wheelset features KOIBIKE RH-CS275 aluminum straight-pull hubs with a center lock mechanism that simplifies disc brake installation. The 36T freewheel system has a minimal engagement angle of 10° and delivers a power transmission delay of ≤0.1 second. CS-R38 carbon straight-pull spokes (3 grams each) are laced with external aluminum alloy nipples (0.3 grams each). The 20/20 hole straight-pull layout keeps spoke tension tolerance within 3%, resulting in a radial stiffness of 750N/mm. The 12x100/12x142mm thru-axle design is compatible with major road frames and a wide range of cassette sizes from Shimano, Campagnolo, and SRAM. Its uniform black design complements a wide range of bikes, providing a one-stop wheel solution for riders seeking lightweight, aerodynamic, and versatile performance.

Product Features and Advantages

Low-profile aerodynamics and balanced handling:

The 35mm-deep rim features a "short-arc U-shaped cross-section" design with an 8mm leading-edge radius, guiding airflow smoothly along the rim and reducing turbulence. Compared to taller rims, centrifugal force during cornering is reduced by 15%, enabling greater agility on narrow mountain trails and through continuous curves. The 28mm outer width also enhances cornering grip. When running a 40mm wide tire at 50 PSI pressure, the tire roll during cornering is reduced by 22% compared to a narrow 25mm tire.

Extremely lightweight system: 

Total wheelset weight is 10359± 30grams, with disassembled weight precisely controlled – rim weight per rim is 320 ± 10 grams (T800 carbon fiber + hollowed-out design), RH-CS275 hub weighs 279 ± 5 grams (6061 aluminum alloy body + AL7075 axle), CS-R38 spokes weigh 3 grams each (20 spokes/wheel x 2 wheels = 120 grams), and external spoke nipples weigh 0.3 grams each (40 spokes = 12 grams). The complete set weighs 320 grams less than a similarly configured steel-spoke wheelset, reducing pedaling power loss by 8% when climbing.

Multiple Compatibility and Sealing: 

The 21mm internal width accommodates tires from 25-40cm diameter, with a flexible tire pressure range of 50-80 PSI. A 25cm road tire at 80 PSI reduces rolling resistance by 15% compared to lower pressures, making it ideal for flat-road racing. A 40cm gravel tire at 50 PSI increases the tread contact patch by 30%, significantly improving grip and cushioning on gravel roads. When tubeless-ready, the tire bead securely fits the rim seal, resulting in a 24-hour air leakage of ≤0.8 PSI, a 25% improvement in sealing compared to traditional rims.

Efficient transmission and braking: 

The RH-CS275 hub's 36T freewheel system, featuring a "double-pawl engagement" design, delivers 99% power transmission efficiency, eliminating lag when pedaling. The center-lock disc brake system, paired with 12x100/12x142mm thru-axles, achieves a brake disc concentricity tolerance of ≤0.02mm, resulting in a braking response delay of ≤0.2 seconds in rainy and muddy conditions, reducing the risk of uneven brake wear by 15% compared to six-bolt disc brakes. Compatible with Shimano HG/MSR, Campagnolo N3W, and SRAM XDR cassettes, the freehub can be replaced without disassembling the hub, and it's compatible with mainstream 8-12 speed drivetrains. 

Durability and quality: 

The CS-R38 carbon fiber spokes utilize a "thickened carbon fiber tow + epoxy resin coating" with a tensile strength of 600MPa, offering 30% improved fatigue resistance compared to conventional carbon spokes. The external aluminum alloy spoke nipples are hard-anodized, achieving an IP54 rust-proof rating and remaining rust-free for 12 months in muddy and sandy environments. The entire wheelset features a unified black exterior, with the UD carbon fiber texture faintly visible on the rim. The hub and spokes feature a consistent matte black finish, ensuring a consistent look and feel, ensuring both performance and visual consistency.

Product Drawing

Application Areas

Application areas for the DW35X28TL-CS-UL carbon spoke wheel:

Road Racing and Criterium Racing: 

The 35mm low-profile aerodynamic design and 1035g lightweight design are ideal for both flat sprints and continuous climbs in road racing. The high stiffness of the CS-R38 carbon spokes improves power transmission efficiency by 9%. Running 80 PSI tire pressure with narrow 25C tires reduces rolling resistance by 12% compared to steel-spoke wheels, helping riders improve their performance.

Gravel Cycling: 

The 28mm external width and 21mm internal width are suitable for puncture-resistant tires from 32-40C. Running 50 PSI tire pressure enhances gravel cushioning and increases the tread contact patch by 30% to prevent slippage. The sealed bearings of the RH-CS275 hub are IP54 dust and water resistant, and the maintenance interval is extended to 6,000 kilometers in muddy and sandy environments, making it ideal for outdoor gravel adventures and mixed-terrain riding. 

Long-Distance Endurance Racing: 

The low-profile wheels offer flexible handling and lightweight construction, reducing hand fatigue on long rides. A wide tire pressure range of 50-80 PSI allows for precise adjustment based on road conditions, with narrow 25C tires perfect for cruising on paved roads and wide 35C tires for handling unexpected gravel sections. The uniform black exterior matches most road bikes, balancing performance with race-ready aesthetics.

High-End Road Bike Upgrade: 

Compatible with major Shimano, Campagnolo, and SRAM shifting systems, you can upgrade your wheels without replacing the frame. At 1035 grams, they're over 500 grams lighter than factory aluminum alloy wheels, significantly improving acceleration and climbing performance, making them a cost-effective upgrade for advanced cyclists.

Technical Parameters

• D: Disc Brake

• W: Wheel

• 30: Depth/Height

• 28: Outer Width

• TL: Tubeless

• CS: Carbon Spoke

• UL: Ultra-light
  

The DW35X28TL-CS-UL Wheel Show