Discover a versatile selection of high-performance bottom bracket adaptors designed to enhance your cycling experience. Crafted from durable, engineering-grade Delrin, these precision-machined inserts provide seamless compatibility across popular crankset interfaces, including SRAM/Truvativ GXP and Shimano Hollowtech II. Perfect for upgrading or customizing your bikes drivetrain, these adaptors enable smooth integration of different spindle types with BB30 bottom brackets, ensuring optimal power transfer and efficiency. Engineered for reliability and lightweight performance, each adaptor fits precisely between bearings and crank spindles, maintaining structural integrity while minimizing weightonly 48 grams per piece. Ideal for bike enthusiasts and professional mechanics alike, these adaptors support a range of frame shell widths (68mm and 73mm) and are compatible with standard bottom bracket shells, making them an essential component for bicycle customization, repairs, or upgrades. Whether you’re transitioning between crankset standards or optimizing your bike for specific riding styles, our bottom bracket adaptors deliver innovative, engineering-grade solutions that improve compatibility, simplify installation, and deliver reliable performance across various cycling disciplines. Enhance your bikes versatility with these durable, precision-engineered adaptorsdesigned to meet the demands of modern cycling and to help you ride with confidence.