CADEX 50 Ultra: The Carbon Fiber Jewel of the Giant Family

CADEX is the high-end component brand under the Giant Group, dedicated to crafting premium bicycle components by leveraging Giant’s decades of carbon fiber manufacturing expertise. The CADEX 50 Ultra wheelset is the flagship product of this brand, showcasing the highest level of Asian carbon fiber technology through its carbon fiber spokes and极致 lightweight design.

Product Specifications

The Extreme Lightness of 1,198g

A 50mm deep carbon wheelset weighing only 1,198g—this figure is staggering. It is 157g lighter than the Zipp 303 Firecrest (1,355g) and 234g lighter than the DT Swiss ARC 1100 (1,432g). Keep in mind, this is an aero wheelset with a 50mm rim depth, not a low-profile climbing wheelset.

The Sources of Weight Reduction

This remarkable weight is primarily attributed to three factors:

1. Carbon Fiber Spokes: Each CADEX Aero carbon spoke weighs approximately 4.3g, compared to 7-8g for steel spokes. Across 48 spokes, this saves roughly 150-180g in total.
2. Carbon Shell Hubs: The R3-C hub shells are made of carbon fiber, significantly reducing hub weight.
3. Optimized Carbon Layup: Giant Group’s decades of carbon fiber manufacturing experience allow the rim to achieve the same structural strength with less material.

CADEX Carbon Fiber Spokes

CADEX’s carbon fiber spokes are the biggest highlight of this wheelset. These spokes are not only extremely lightweight but also feature an aero profile design that reduces the spokes’ own wind resistance at high speeds.

Advantages of Carbon Spokes

• Significant Weight Savings: 44 carbon spokes save over 150g compared to steel
• Aero Profile: The flattened cross-section reduces rotational drag
• Vibration Damping: Carbon fiber’s damping characteristics deliver a more comfortable ride quality
• No Corrosion: Carbon fiber is unaffected by sweat and rain

Concerns with Carbon Spokes

• No Tension Adjustment: Carbon spokes cannot be fine-tuned for tension like steel spokes, making truing maintenance difficult
• High Maintenance Costs: A single carbon spoke costs approximately NT$800-1,500
• Inconvenient Replacement: Requires specialized tools and expertise
• Impact Resistance: Carbon fiber is less resistant to lateral impacts than steel spokes

R3-C Carbon Shell Hubs

The CADEX R3-C hub shells are manufactured from carbon fiber, while the internal mechanism utilizes a 36T star ratchet design. The rotational quality of these hubs is impressive, with smoothness and low friction performance reaching top-tier standards.

However, the 36T engagement (10 degrees) is not the fastest among premium wheelsets. If you require quicker engagement response, you may need to consider other options.

The Advantage of Giant’s Carbon Fiber Manufacturing

As one of the world’s largest bicycle manufacturers, Giant owns its own carbon fiber factory and a complete R&D team. This means the carbon fiber rims of CADEX wheelsets are not outsourced to third-party factories but are manufactured on Giant’s own production lines, ensuring stricter quality control.

Furthermore, Giant’s carbon fiber R&D expertise allows CADEX to employ more advanced layup techniques and resin systems, achieving an optimal balance between strength and weight.

Real-World Riding Experience

The Lightness of Acceleration

The acceleration feel delivered by the 1,198g weight is stunning. The transition from standstill to cruising speed is exceptionally brisk, and the acceleration response on climbs is truly admirable. On Taiwan’s climbing routes, the lightweight advantage of this wheelset translates into noticeable speed gains.

Aero Cruising

The 50mm rim depth combined with well-executed aero design makes for exceptional efficiency when cruising on flats. The low drag of the carbon spokes becomes even more apparent at higher rotational speeds—traditional steel spokes generate considerable wind resistance when spinning fast, while carbon spokes virtually eliminate this issue.

Ride Quality

Carbon spokes deliver a ride quality entirely different from steel spokes. Fine road vibrations are effectively filtered by carbon fiber’s damping properties, while sufficient road feedback is retained. Comfort on long rides is noticeably superior to comparable wheelsets with steel spokes.

Stiffness Performance

The extreme lightness does not compromise stiffness. During sprints and full-power pedaling, the CADEX 50 Ultra maintains excellent lateral stiffness, with direct and powerful power transfer.

Comparison with Competitors

Pros and Cons Analysis

Pros

• 1,198g extreme lightness, among the lightest in its rim depth class
• Carbon fiber spokes deliver a unique ride quality
• Giant Group’s carbon fiber manufacturing quality assurance
• Hooked rim design offers broad compatibility
• Taiwanese brand with relatively convenient local service
• Perfect balance of aero and lightweight

Cons

• High price point (NT$95,000+)
• Carbon spokes are inconvenient and expensive to repair
• 36T engagement is not top-tier
• Carbon spokes cannot have tension adjusted
• Aesthetic design is subjective

Purchasing Advice in Taiwan

As a brand under the Giant Group, CADEX offers the most convenient purchasing channels in Taiwan. All Giant authorized dealers across the island can place orders, and after-sales service is supported by Giant’s comprehensive system.

Who Is It For?

• Climbers pursuing extreme weight reduction
• Riders who support Taiwanese brands
• Buyers who value carbon fiber manufacturing quality
• All-rounder riders seeking a single wheelset that handles both climbing and aero performance

Conclusion

The CADEX 50 Ultra is the finest showcase of the Giant Group’s carbon fiber capabilities. The extreme lightness of 1,198g, the unique experience of carbon fiber spokes, and the aero advantage of the 50mm rim depth secure its distinctive position in the carbon wheelset market. Although the price is not low, considering Giant’s well-established service network in Taiwan and its deep-rooted carbon fiber manufacturing heritage, the CADEX 50 Ultra is a top-tier carbon wheelset that Taiwanese riders can be proud of.

Related Reading

• CADEX Wheelsets: Giant’s Premium Carbon Wheel Sub-Brand
• CADEX AR 35: Giant’s All-Terrain Carbon Wheels
• Farsports Ventoux S 50: Extreme Lightness at 1190 Grams
• Winspace HYPER 50: The Performance Ceiling of Chinese Carbon Wheels