Product Description

Item Condition:New Old Stock (NOS).

Brand new, never installed, and 100% complete.

This is an extremely rare opportunity to acquire a complete Oval Concepts Jetstream A921 aerobar system, including the proprietary SCCS integrated stem.

Product Overview:

The Oval Concepts A921 Jetstream is a masterpiece of aerodynamic engineering from the golden era of time trial and triathlon design.

Featuring the iconic "Jetstream" split-foil base bar, this system is designed to allow air to flow through the bar rather than around it, significantly reducing turbulent drag.

What makes this listing truly exceptional is the inclusion of the Original SCCS (Stem Cap Computer System) Integrated Stem.

The carbon extensions and armrests mount directly to the stem's faceplate rather than clamping onto the carbon base bar.

This not only increases the structural stiffness of the cockpit but also frees up maximum hand positions on the base bar.

The Golden Geometry:

The included stem features a highly sought-after 90mm length with a 73° (-17°) angle.

When mounted, this provides a perfectly horizontal, ultra-aggressive aerodynamic profile, keeping your elbows tightly tucked while minimizing frontal area.

Key Features:

• Jetstream Technology: Split-wing carbon base bar design for ultimate aerodynamic efficiency.

• SCCS Integration: Extensions and pads mount directly to the stem faceplate for a cleaner, stiffer, and safer cockpit.

• Aggressive Positioning: The 73° stem ensures a flat, parallel-to-the-ground setup.

• Premium Carbon: High-modulus unidirectional carbon fiber base bar, extensions, and armrest plates.

Technical Specifications:

• Model: Oval Concepts A921 Jetstream (Full System)

• Material: Full Carbon Fiber (Base bar, Extensions, Armrests) / Forged Alloy (Stem)

• Base Bar Width: 400 mm

• Clamp Diameter: 26.0 mm

• Included Stem Length: 90 mm

• Included Stem Angle: 73° (equivalent to -17°)

• Steerer Tube Compatibility: 1-1/8" (Standard)

• Intended Use: Time Trial (TT) / Triathlon / Track / Velodrome

Package Includes:

Complete cockpit system as pictured: Jetstream Carbon base bar, SCCS 90mm/73° Stem, Carbon single-bend extensions, Carbon armrest plates, pads, and all necessary mounting hardware.