Plastic construction This bottom bracket adapter is made from sturdy plastic, offering longlasting performance while remaining practical for everyday use. Seamless conversion Designed specifically for BB30 (PF30) to conversion, it enables you to fit a traditional threaded bottom bracket easily and without hassle. Compatibility with chainsets Ideal for 46 To 24mm chainsets, this adapter expands your bike's component options and enhances overall versatility. Precise fit for frame Tailored for BB30 (PF30) frames with a 46mm internal diameter, it ensures a secure and accurate fit for performance on road or trail. Use scenarios Road bike upgrade Converts a BB30/PF30 frame to accept a threaded bottom bracket, allowing use of a wider range of 24 mm spindle cranksets for road applications. Trail or allterrain builds Compatible with 46 mm internal diameter frames to run 24 mm chainsets, supporting versatile setups for mixed surfaces and offroad riding. Bike or maintenance workflow Provides technicians with a reliable option to offer threaded BB compatibility on BB30 PF30 frames, facilitating customer choices and easier part swaps. Specs and fit notes Material: plastic Frame compatibility: BB30 PF30 frames with 46 mm internal diameter Chainset compatibility: suitable for 46 To 24mm chainsets Performance focus: secure, accurate fit for road and trail use