SRAM Apex D1 1x Crankset - OE Packaged1x simplicity, DUB-equipped reliability The SRAM Apex D1 crankset is built around the simplest drivetrain idea that actually works everywhere: a single chainring paired with a wide-range cassette. Apex 1 D1 features durable aluminum crankarms, a light and stiff DUB spindle, and a direct-mount X-SYNC chainring designed to keep the chain planted when roads get rough. The optional Wide chainline opens up clearance for bigger gravel tires, with a Wide DUB spindle adds cross-compatibility across Road and MTB-width bottom bracket standards. From mixed-surface mileage to off-the-map detours, this is a straightforward, reliable 1x crankset that keeps the bike quiet and the setup clean. Features OE Packaged does not ship in SRAM-branded packaging1x Simplicity uses a single-ring drivetrain to reduce weight and keep shifting straightforward Available DUB Wide Chainline designed for clearance with larger gravel tires and modern frames X-SYNC chainring technology wide-tooth, narrow-tooth profile maximizes chain retention and control Direct-Mount chainring clean, secure mounting for a simple and durable setup Specifications Speeds12, 13BB Compatibility All SRAM Road WIDE DUB BBs, except Ai; DUB 83-A BBs Only (DUB Wide version)BB Spindle Interface SRAM DUBChainring Material Aluminum Bolt Circle Diameter (BCD)Direct Mount (DM)Chain Technology Eagle, Road Flattop D1, Road Flattop E1, T-Type | Sram | Apex D1 1X Crankset - Oe Packaged 42T, 172. 5Mm, Sram | Dub Wide, Black | Aluminum