A bike’s bottom bracket is designed to attach the frame and the crankset allowing the rider to pedal. Over the years, biking manufacturers have adapted the technical capabilities of bottom brackets for bikes. The component is designed to help keep your pedals insulated for smooth and transitional riding. You will find bike bottom brackets that can be installed as a replacement or as an upgrade. The component is tucked away and works in a way that enhances the durability and reliability of your ride. Our bike bottom brackets include external bottom brackets, internal bottom brackets, and bottom bracket spares.