Upgrade your cycling performance with the Profile Design 39a Aluminum Aerobar Extensions - the ultimate choice for serious triathletes and time trial riders seeking optimal aerodynamics and comfort. Crafted from , lightweight aluminum, these 400mm black aerobar extensions are engineered for durability, precision, and sleek style, making them an essential component in your aerodynamic setup. Materials & Construction: Made from aluminum, the Profile Design 39a aerobar extensions combine strength and lightweight performance. Their robust build ensures durability under high-intensity riding conditions while maintaining a sleek black finish that complements any triathlon or time trial bike. Performance & Engineering: Designed with a 39-degree angle, these extensions provide a versatile grip position-allowing riders to choose between a high, shrugged grip or a low, head-up position. This ergonomic design promotes optimal aerodynamics and rider comfort, helping you maintain a powerful, efficient riding posture for extended periods. Components & Technology: Featuring a 7.5mm lateral shift per side, the Extensions allow customization of hand positioning for a narrower or wider grip, enhancing comfort and handling without compromising aerobar integrity. The pre-drilled design facilitates easy cable routing-rear exit for seamless integration with both electronic and mechanical shifter systems-eliminating the need for cable exit holes and reducing clutter for a cleaner cockpit. Style & Use Case: With their sleek black finish and streamlined profile, these aluminum aerobar extensions are perfect for triathletes, time trial enthusiasts, and competitive cyclists focused on reducing drag and maximizing speed. Compatibility with 22.2mm diameter clamps makes them versatile and compatible with a wide range of handlebar setups. Innovative Features: - Pre-drilled for bar-end shifter cable routing, ensuring tidy installation - Designed for rear cable exit, eliminatin