21h Carbon Fiber Spokes With 24mm Internal Road Bike Wheelset
The Future of Lightweight Performance: Engineering the 1178g Carbon-Titanium Wheelset
In the world of competitive road cycling, the quest for the “perfect” wheelset usually involves a compromise between three factors: weight, aerodynamics, and stiffness. However, with the integration of advanced materials like high-modulus carbon fiber and titanium alloys, those compromises are becoming a thing of the past.
Our latest 21h Carbon Fiber Spoke Wheelset represents the pinnacle of this evolution, weighing in at a staggering 1178g while maintaining the structural integrity required for aggressive climbing and high-speed descents.
Quick Specs:
Weight: 1178g
Spokes: 3.5mm Carbon Fiber / Titanium Alloy
Hub: SR310C
Rim Profile: 50mm Depth / 24mm Internal / Offset Profile
1. The Power of Carbon-Titanium Hybrid Spokes
The soul of this wheelset lies in the 3.5mm wide carbon fiber spokes. Unlike traditional steel spokes, carbon spokes offer significantly higher tensile strength and vibration damping.
To solve the historical “brittleness” issue of carbon spokes at the connection points, we utilize Titanium alloy ends. This hybrid construction provides:
Reduced Rotating Mass: Quicker acceleration out of corners.
Enhanced Stiffness: Minimal energy loss during high-wattage sprints.
Durability: Titanium provides a robust interface that handles high tension without the risk of snapping associated with pure carbon bonding.
2. 50mm Offset Rims: Aerodynamics Meets Balance
A 50mm depth is widely considered the “sweet spot” for all-around riding, providing a clear aero advantage on the flats. However, we’ve taken it a step further with an offset (asymmetric) profile.
By shifting the spoke bed, we can equalize the spoke tension between the drive side and the non-drive side. This results in a wheel that stays true longer and offers a more predictable feel when leaning into high-speed corners.
3. The Modern Standard: 24mm Internal Width
The industry is moving toward wider tires for better grip and lower rolling resistance. With a 24mm internal width, these rims are optimized for 28c to 32c tires. This wider base allows the tire to sit with a more “U-shaped” profile, increasing the contact patch and allowing you to run lower pressures for a smoother, faster ride on varied road surfaces.
4. SR310C Hubs & 2:1 Lacing
Efficiency is nothing without a reliable core. The SR310C bike hubs are designed for minimal friction and maximum power transfer. Combined with a 2:1 spoke weave, where the drive side has twice as many spokes as the non-drive side, the wheel achieves a perfect balance of tension. This specific lacing pattern is the secret behind keeping a 21-hole wheel as stiff as a traditional 24-hole build.
At 1178g, this isn’t just a climbing wheel; it’s a versatile, aerodynamic powerhouse. Whether you are hunting for a KOM/QOM or looking to shave seconds off your local crit, the combination of carbon spokes, titanium ends, and offset rim geometry sets a new benchmark for what a modern road wheel can be.
Ready to upgrade your ride? Experience the precision of the SR310C system and the unmatched feel of carbon spokes.
Buy link:
28" Full Carbon Spoke Wheelset Road Bike Carbon Wheelset 50mm wavy rims 21 Spokes