OSPW Aero ALPHA SRAM RedD1/E1+ForceD1 v2

The OSPW Aero ALPHA is the "ultimate weapon" for time trials, triathlons, and high-speed road racing. Developed in the wind tunnel alongside Simon Smart of Drag2Zero, the full-carbon aerodynamic shroud reduces drag on the rear derailleur by up to 60%. This system is "v2," meaning it has been updated for full compatibility with the latest SRAM Red E1 and Force D2 groupsets, as well as the legacy D1 versions. It features the ALPHA Disc Pulley Wheels, which utilize a solid aluminum disc to eliminate spoke-induced turbulence and a composite tooth profile for near-silent operation. With the addition of ADR (Active Debris Remover) technology and standard Coated Ceramic Bearings, this system provides the lowest possible friction and maximum longevity, backed by a lifetime warranty.

Key Features

• Class-Leading Aerodynamics: The structural carbon shroud is shaped to manage airflow around the most complex part of the drivetrain, "hiding" the pulleys from the wind.

• ALPHA Disc Technology: Solid disc pulleys eliminate the "fan effect" of spinning spokes, further reducing air resistance while preventing road debris from entering the cage.

• Active Debris Remover (ADR): A patent-pending technical feature with a bladed dust cover that dynamically flings contaminants away from the bearings while rotating.

• Composite Tooth Profile: The pulley teeth are made from a unique fiber-reinforced composite that wears longer than alloy and significantly dampens chain noise.

• Coated Ceramic Bearings: Standard on the Aero series, these bearings feature a metallic layer on the races that is 75% harder than steel, resulting in even lower friction and extreme corrosion resistance.

Specifications

• Compatibility: SRAM Red AXS (D1/E1) and SRAM Force AXS (D1/D2/v2) 12-speed.

• Speed Compatibility: 12-Speed (Optimized for SRAM Flattop chains).

• Max Cassette Size: Supports up to a 36T cassette.

• Bearing Type: Coated Ceramic (Standard / Lifetime Warranty).

• Cage Material: Carbon Fiber Reinforced Polyamide with Aero Shroud.

• Weight: ~118 grams.

Typical Components Included

• Complete OSPW Aero ALPHA System (Shroud, Cage, and ALPHA Discs).

• CeramicSpeed Pulley Oil (15ml).

• Custom SRAM AXS cage removal/installation tool.

• Pinstripe speed graphic decal (Pre-applied).