Light, fast, and all-round ready. One of the lightest 50 mm wheels in its class, the QianKun CS50 is built for riders who want the perfect mix of lightness, explosive acceleration, and aerodynamic speed. With a 50 mm rim and a featherweight build of just 1185 g ±3%, the CS50 is your go-to for climbs, all-around racing, and fast weekend rides.
Benefits: Ultra-fast power transfer, maximum stiffness, lightweight
T-Head shaped
Tires
Recommended: 28c (optimized under 105% aero rule)
Tubeless ready and clincher compatiable
Compatible: 25c - 45c
Weight
1185g +-3% *weight is without valve and rim tape
Included in the Box
Tubeless Valves*2
Locking ring*2
Axtra Spokes*3
Tubeless Rim Tape*1
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Balance is the New Speed
Inspired by the philosophy of QianKun, we’ve created the perfect harmony of lightweight aerodynamics, high-rigidity rims, precision hubs, and aero carbon spokes. This synergy delivers a wheelset that is not only lighter, but also stiffer, faster, and more responsive than ever.
The result is the Qiankun CS Series — a race-ready wheelset starting at just 1185 g, giving every rider the competitive edge to climb, sprint, and push beyond limits.
Inspired by the philosophy of QianKun, we’ve engineered the perfect balance of lightweight aerodynamics, high-rigidity rims, and race-level durability. At just 375 g per rim, tested to withstand 120 J impact standards, the Qiankun CS Series delivers the speed, stiffness, and strength every racer demands.
Lightest in Class 50mm Aero Wheelset
At just 1185 g, the Qiankun CS50 is one of the lightest 50 mm aero wheelsets in its class. Built with T1000 carbon and carbon spokes, it delivers explosive acceleration on climbs while still slicing through the wind on the flats.
Instant Power Transfer
Every watt matters. The Qiankun CS50 hub system is designed for explosive responsiveness and maximum efficiency. With a two-spoke/one-hole flange geometry, advanced axle and bearing assembly, and a new ratchet + spring system, you get lightning-fast engagement without added complexity. Paired with ceramic-sealed bearings, QianKun hub reduces drag to an absolute minimum, giving you smoother rolling and sharper acceleration every time you push the pedals.
Romanian UCI Intercontinental Team racer from MenToRise put Qiankun CS50 to the test.
QianKun Wheels in Actions
Testing Process
Rim Test
Rim Test
Qiankun rims undergo rigidity and impact testing to prove both lateral and radial stiffness. Each spoke hole withstands forces up to 600 kgf, ensuring durability under extreme racing loads without sacrificing lightweight performance.
Hub Test
Hub Test
Our hubs are pushed through a torque test of 230 Nm for 52,000 cycles with zero damage, simulating years of real riding. Spoke holes are also tested at 600 kgf to guarantee long-term strength and reliability.
Spoke Test
Spoke Test
Qiankun carbon spokes are individually tested to endure 600 kgf of pulling force without failure. The result is maximum stiffness and instant power transfer, built to handle the most aggressive sprints and climbs.
Quality Control Test
Quality Control Test
All components come together in a wheelset proven to be lighter, stiffer, and stronger. Every test confirms that Qiankun CS wheels are engineered to withstand the extreme forces of racing — delivering speed and reliability without compromise.
What makes the QianKun CS series different from NxT series wheels?
The Qiankun CS is Yoeleo’s pinnacle race-focused wheelset, using T1000 high-modulus carbon rims and aero carbon spokes for unmatched stiffness, responsiveness, and low weight. NxT wheels are excellent all-rounders, while Qiankun CS is designed specifically for riders chasing maximum performance and race-day advantage.
How light are the QianKun CS wheels?
The CS50 weighs just 1185g+/-3%, making it one of the lightest 50 mm aero wheelsets available. The CS60 adds aero depth while remaining lightweight at 1285g+/-3%.
What riding styles are the CS50 and CS60 best for?
CS50: Perfect for climbing, all-round racing, and hilly courses thanks to its feather-light weight.CS60: Designed for high-speed racing, flat terrain, and sprint finishes where aero efficiency is critical.
Are the Qiankun CS wheels tubeless-ready?
Yes. Both CS50 and CS60 are tubeless-ready clinchers, compatible with both clincher tires (with tubes) and tubeless setups.
What tire size is recommended for QianKun CS?
The wheels are optimized for 28c tires under the 105% aero rule, but they can fit a wide range from 28c up to 45c, making them versatile for road racing and gravel racing.
What warranty and crash protection do they come with?
The Qiankun CS Series comes with a 3-year global warranty. In addition, riders benefit from a crash-replacement program with a 30% discount on replacements.
How do they perform in crosswinds?
Thanks to the 23 mm internal / 32 mm external wide rim profile and aero-optimized design, the wheels maintain stability even in challenging crosswind conditions, giving riders confidence at speed.
What are included in the box?
One set of Tubeless valves (front and rear)
2 rotor lockrings
3 extra spokes
Tubeless rim tape
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