Key benefits Easy conversion to 4bolt 110BCD: transforms a directmount crankset into a compatible 4bolt 110BCD chainring interface with a purposebuilt adapter spider, enabling straightforward . Performanceoriented design: supports both single and double chainring configurations, offering flexible gearing options to suit different riding styles and conditions. Lightweight and strong: crafted from robust 6061 aluminum alloy and CNC machined, the adapter weighs only 40 grams without sacrificing rigidity or reliability. Readytouse package: includes 1 chainring adapter spider, providing an immediate upgrade path for your drivetrain. What you get 1 chainring adapter spider Compatibility and specs Function: converts a directmount crankset to a 4bolt 110BCD chainring interface, enabling use of standard 110BCD rings. Compatibility: suitable for directmount cranksets that require a 4bolt 110BCD interface. Weight: 40 grams Material and finish: 6061 aluminum alloy, CNC processed for precise fit and durability Configuration options: supports both single and double chainring setups Use scenarios Scenario 1: You want to convert a directmount crank to a singlering setup for a lighter, simplified drivetrain on a gravel or road bike, reducing weight and potential drivetrain clutter. Scenario 2: You need a double chainring configuration on a bike originally using a directmount crank, expanding gearing options for hilly terrain or mixed terrain riding. Scenario 3: You are upgrading to a wider selection of 110BCD chainrings without replacing the crank, enabling easier upgrades and over time.