Enhance your cycling experience with this high-performance Bike Bottom Bracket, crafted from durable aluminum alloy and equipped with integral sealed steel bearings to ensure smooth pedaling and long-lasting reliability. Designed to reduce noise and maintain high strength while remaining lightweight, this bottom bracket offers exceptional stability and durability for your bike frame. Key Features: · Premium Aluminum Alloy Frame: Provides a perfect balance of lightweight design and robust strength for improved pedaling efficiency and lateral stability. · Integral Sealed Steel Bearings: Advanced sealed bearings retain lubricant effectively, offering excellent dustproof and waterproof protection, making it ideal for harsh riding conditions and extending service life. · Noise Reduction and Smooth Operation: Precision machining enhances sealing performance and reduces abnormal noise during cycling, ensuring a quiet and comfortable ride. · Stable and Secure Fit: The sturdy aluminum alloy construction resists loosening, maintaining optimal stability and performance on the bike. · Accurate Dimensions: Inner diameter of approximately 30mm (1.18in), outer diameter of approximately 44mm (1.73in), designed to fit an applicable frame diameter of approximately 41mm (1.61in), ensuring compatibility with various bike frames. · Lightweight Design: Weighs approximately 98g (3.5oz), making it easy to install without adding unnecessary weight to your bike. Specifications: · Product Type: Bike Bottom Bracket · Material: Aluminum Alloy, Sealed Bearing, Nylon · Color: As shown in pictures · Inner Diameter: Approx. 30mm / 1.18in · Outer Diameter: Approx. 44mm / 1.73in · Applicable Frame Diameter: Approx. 41mm / 1.61in · Weight: Approx. 98g / 3.5oz · Application: Compatible with Sram 28.99 Package Includes: · 1 x Bike Bottom Bracket This Bike Bottom Bracket combines lightweight construction, superior bearing technology, and precise machining to deliver reliable performance and durability. It is an excellent upgrade for riders seeking smoother pedaling, reduced noise, and enhanced riding stability in a compact and durable component.