Description
The Bosch Aerotwin AR21U boasts a frameless construction and measures 530 mm for dependable performance.
With its weatherproof construction, the AR21U windshield wiper blade guarantees clear visibility from freezing cold to sweltering conditions.
The Bosch AR21U wiper blade delivers a symmetric-style spoiler, optimized for unmatched clarity in high-speed scenarios.
A symmetric spoiler spans the entire blade, delivering even pressure distribution. By directing air symmetrically above and below, it ensures a clean sweep at any speed. This design also shields internal components, extending blade life. Its versatile installation allows use on either side of the windshield, making it a hassle-free option for year-round drivers.
Frameless replacement blade delivers a sleek beam profile, calibrated for even line pressure across today’s sculpted windshields. A pre-curved spring-steel beam pairs with a advanced synthetic-rubber edge, ensuring a silent, streak-free sweep. Its wind-cheating contour cuts lift at highway speed, while slide-in multi-adapter 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). Go beam, drive clear – purchase today.
Aerotwin – the flagship series from the respected German automotive supplier Bosch. Wipers in the Aerotwin family boast an modern frameless construction and are supplied to the assembly lines of numerous leading vehicle makers. The wiping element is made from a multi-compound rubber, outperforming natural rubber in key properties. Spring strips are produced from a special “Evodium” alloy and maintain their original tension throughout the blade’s service life.
