Description
The Bosch Aerotwin A991S wiper blade set includes blades of 600 / 400 mm and boasts a frameless assembly.
A991S delivers universal, round-the-year durability—dual blades clearing away sleet, blizzard conditions, and debris for a clear windshield on every drive.
The Bosch A991S wiper blade set features an asymmetric-style spoiler, built to provide steadfast performance in high-speed scenarios.
An asymmetric spoiler is strategically positioned to channel airflow into enhanced blade pressure while minimizing drag, applying extra pressure to the wind-facing edge so the blade hugs the glass during gusty conditions. The result is reduced lift and chatter even in strong crosswinds.
Perfect for performance-driven drivers, it enhances stability for a smoother drive.
Frameless windshield wiper blade offers a modern tensioned beam, purpose-built to hold pinpoint wiping accuracy across today’s sculpted windshields. A pre-curved spring-steel beam pairs with a premium silicone edge, producing a crystal-clear pass. Its low-drag aero spoiler boosts high-speed stability, while smart-fit mounting heads suits 95% of vehicles for rapid installation. The frameless build shrugs off snow and ice, eliminates corrosion points, and hugs modern glass shapes for superior visibility. Drawbacks: higher upfront cost, refill inserts are non-serviceable, plastic adapters may embrittle in severe cold, and clamping force declines slightly on very flat windshields. Rinse with pH-neutral soap every three months and replace every 12–24 months (6–12 months in extreme climates). Experience silent clarity – take your drive to the next level now.
Series Bosch Aerotwin – the premium line from the trusted global manufacturer Bosch. Windshield wipers in this line offer an modern frameless construction and are supplied to the production lines of numerous European vehicle makers. The wiping element is made from a high-tech composite rubber, outperforming natural rubber in key properties. Spring rails are produced from a special “Evodium” alloy and preserve their original tension throughout the blade’s service life.
