Description

FSA No.55R 1.5 ACR 3mm Tapered Headset
Category: Spare Parts
Subcategory: Headsets
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Elevate your cycling experience with the FSA No.55R 1.5 ACR 3mm Tapered Headset, a pinnacle of modern bicycle engineering designed for riders who demand a clean aesthetic and uncompromising performance. This headset is the key component for achieving a fully integrated cockpit, offering a significant aerodynamic advantage and a sleek, professional look by completely concealing shift and brake cables internally. It represents the forefront of Steering Systems technology, providing a direct and tangible upgrade for compatible frames.
The primary benefit of the FSA No.55R headset lies in its revolutionary Aerodynamic Cable Routing (ACR) system. This cutting-edge design guides all cables and hoses through the headset, stem, and into the frame, eliminating external cable clutter. The result is not only a visually stunning, minimalist front end but also a measurable reduction in aerodynamic drag, allowing you to slice through the wind with greater efficiency. This seamless integration transforms the profile of your bicycle, giving it the clean lines typically seen on professional tour-level machines.
Performance is further enhanced by the headset´s robust construction and precision components. The use of high-quality Angular Contact Bearings (ACB) is crucial. Unlike standard radial bearings, ACBs are specifically engineered to handle both axial and radial loads simultaneously, ensuring exceptionally smooth steering under pressure and outstanding durability over thousands of miles. This translates to confident, predictable handling whether you´re cornering at high speed, navigating technical descents, or putting down power in a sprint. The tapered 1-1/8” to 1.5” design stiffens the entire front end of the bike, improving steering response and power transfer for a more connected and reactive ride feel.
Features:
* Fully Integrated Cable Routing: The cornerstone ACR system enables a completely internal routing path for all cables and hoses, delivering superior aerodynamics and an ultra-clean aesthetic.
* No Rotation Limit: Enjoy unrestricted handlebar movement and steering control without the limitation of an internal rotation stop.
* Angular Contact Bearing (ACB): Equipped with durable 36° / 45° ACB bearings designed for optimal load distribution, smooth performance, and long service life.
* Specific Frame Required: Engineered for frames built around the ACR standard, ensuring flawless integration and function.
Technical Specifications:
* Part Number: 130-0072022682
* Steering Systems: 1.5″ Tapered ACR Integrated Headset
* Headtube Standard: 1.5”, for 55.8mm OD head tube
* Fork Steerer Compatibility: For 1-1/8” to 1.5” tapered forks
* Bearing Type: 36° / 45° Angular Contact Bearings (ACB)
* Stack Height: 10.4mm + 0.5mm = 10.9mm
* Weight: 92 grams
This FSA No.55R headset is the definitive choice for custom builders and cyclists upgrading to a state-of-the-art internal routing setup. It provides the essential link between your frame, fork, and cockpit, creating a unified, high-performance steering system that is as fast as it is beautiful