Mavic Cosmic Ultimate 45: A French Handcrafted Carbon Fiber Masterpiece

Mavic, the century-old brand from Annecy, France, holds an irreplaceable position in cycling history. From neutral service cars at the Tour de France to the iconic Helium wheelset, Mavic’s yellow logo has always been a symbol of quality. As Mavic’s flagship carbon wheelset, the Cosmic Ultimate 45 continues the tradition of French manufacturing while incorporating the latest carbon fiber technology.

Product Specifications

Item	Specification
Rim Depth	45mm
External Rim Width	26mm
Internal Rim Width	21mm
Weight (Front + Rear)	1,340g (disc brake version)
Hubs	Mavic Infinity
Spokes	Tracomp Carbon carbon fiber spokes
Spoke Count	Front 20 / Rear 24
Engagement	ID360 Instant Drive
Tire Compatibility	UST Tubeless Ready
Suggested Retail Price	NT$80,000-95,000

Fore Carbon Technology

The Fore carbon technology used by Mavic on the Cosmic Ultimate is its proprietary carbon fiber weaving method. Unlike traditional pre-preg carbon layup stacking, Fore technology uses woven carbon fiber tubular structures that are then molded as a single piece. The advantages of this construction method are:

• Higher stiffness-to-weight ratio: Greater stiffness at the same weight
• Better carbon fiber alignment: Fiber orientation better matches load directions
• More uniform wall thickness: Better consistency in quality
• Fewer bonding points: Reduces potential weak spots

Tracomp Carbon Fiber Spokes

This is one of the most striking features of the Cosmic Ultimate. Tracomp carbon fiber spokes not only significantly reduce weight (approximately 40% lighter than steel spokes) but also deliver a unique ride quality. The vibration-damping characteristics of carbon fiber give the Cosmic Ultimate noticeably better comfort on rough roads compared to competitors using steel spokes.

The Downsides of Carbon Spokes

However, carbon fiber spokes also have their limitations:

• Tension cannot be adjusted like steel spokes
• Damaged spokes must be replaced at the factory
• Replacement parts take longer to obtain
• Replacing a single spoke is expensive

ID360 Instant Drive System

The rear hub uses Mavic’s ID360 (Instant Drive 360) system, providing near-zero-lag instant engagement. The ID360 uses a roller clutch design, offering engagement several times faster than traditional pawl systems. In real-world riding, this means the moment you press down on the pedal, power is immediately transferred to the rear wheel—especially noticeable when attacking and sprinting.

The Significance of French Manufacturing

The Cosmic Ultimate is one of the few high-end carbon wheelsets still manufactured in Europe (Annecy, France, and Romania). French manufacturing in the cycling world represents a dedication to quality and romance, much like French wine and cheese. Every Cosmic Ultimate carries the legacy of Mavic’s century of craftsmanship.

Real-World Riding Experience

The Balance of Lightweight and Stiffness

The 1,340g weight combined with the high stiffness of carbon fiber spokes gives the Cosmic Ultimate 45 excellent acceleration response when climbing. On Taiwan’s classic climbing routes such as the Wuling East Approach and Buyan Ting, the lightweight advantage of this wheelset is very apparent.

A Unique Ride Feel

The distinctive ride quality delivered by carbon fiber spokes is the Cosmic Ultimate’s biggest selling point. Fine road vibrations are effectively absorbed by the carbon spokes, while larger impacts are supported by the rim’s stiffness. This “supple yet stiff” ride quality is deeply impressive.

UST Tubeless System

Mavic was one of the first brands to promote the UST (Universal System Tubeless) standard, and the Cosmic Ultimate’s rim and air-sealing design are both optimized for UST tires. In Taiwan’s humid climate, the UST system combined with sealant provides better puncture protection.

Crosswind Performance

The 45mm rim depth paired with a relatively narrow 26mm external width means stability in strong crosswinds is not as good as wider designs like the Zipp 303. However, under normal crosswind conditions, the Cosmic Ultimate’s handling remains satisfactory.

Comparison with Competitors

Wheelset	Rim Depth	Weight	Spokes	Price (NT$)
Mavic Cosmic Ultimate 45	45mm	1,340g	Carbon fiber	80,000-95,000
ENVE SES 4.5	45/49mm	1,280g	Steel/Carbon	85,000-120,000
Zipp 303 Firecrest	40mm	1,355g	Steel	45,000-55,000
Campagnolo Bora WTO 45	45mm	1,450g	Steel	65,000-80,000

Pros and Cons Analysis

Pros

• Carbon fiber spokes deliver a unique ride quality
• Excellent lightweight performance at 1,340g
• ID360 Instant Drive system responds quickly
• French manufacturing quality and brand value
• Mature and reliable UST Tubeless system
• The heritage of Mavic’s century-old brand

Cons

• Carbon spokes are inconvenient and costly to service
• High price; value for money is not as good as some competitors
• 21mm internal rim width is on the narrow side
• Limited dealer network and service support in Taiwan
• Narrower external rim width; crosswind stability not as good as wider designs
• Mavic has faced business difficulties in recent years; brand outlook uncertain

Buying Advice for Taiwan

Mavic’s distribution channels in Taiwan have been reduced in recent years. It is recommended to confirm whether service and spare parts support are available in Taiwan before purchasing. If comprehensive after-sales service can be secured, the Cosmic Ultimate 45 is definitely a top-tier carbon wheelset worth owning.

Who Is It For?

• Riders who love French brand culture and history
• Connoisseurs seeking a unique ride quality
• Weight-conscious climbers
• Enthusiasts with ample budget who don’t mind service convenience

Conclusion

The Mavic Cosmic Ultimate 45 is a carbon fiber masterpiece with a romantic French character. The carbon fiber spokes and Fore carbon technology give it a one-of-a-kind ride quality, while the ID360 Instant Drive ensures excellent power transfer. Although Mavic’s recent brand situation is a cause for concern, the Cosmic Ultimate’s product performance remains undeniably top-tier.

Related Reading

• Corima MCC EVO: The Pinnacle of French Full-Carbon Monocoque Craftsmanship
• Mavic Wheelsets: 130 Years of French Cycling Legend
• A Tour of French Wheelset Craftsmanship: The Gallic Spirit from Mavic to Corima
• ENVE SES 4.5: Pogačar’s Secret Weapon