Praxis ALBA Gravel 2X – Alloy Gravel Crankset High-performance 2X alloy crankset designed for gravel bikes with wider chainline groups like Shimano GRX 2X or SRAM Wide 2X. Features Material: Forged alloy arms, spider, and rings; Alloy M30 spindle (30mm drive / 28mm non-drive) Chainline: 2X = 47mm, optimized for gravel 2X drivetrains Gearing: 48/32 with LevaTime II X-Rings and alloy chainring bolts Average Weight: 800g (172.5mm 48/32 arm set) Q-Factor: 150mm Main Bolt: 8mm Alloy Main Crank Bolt for easy install/self-extract Technology: In-house RTM + Filament Winding Manufacturing; LevaTime II shifting system Drivetrain Compatibility Shimano GRX 2X Gravel: Mechanical and Di2, 10/11/12-speed SRAM Wide 2X Gravel: Mechanical and eTap, 10/11/12-speed Bottom Bracket Requirement Requires Praxis M30 BB (30mm drive / 28mm non-drive) Compatible with: BSA, BB86, T47 Internal Bearing (I.B.), T47 External Bearing (E.B.), BB30 / PF30 / 386EVO / BBRight Power Meter Compatibility Aftermarket options include: Power2Max NG and NG Eco 3-Bolt SRM 3-Bolt Garmin Vector 3 Look Exakt Favero Assioma Velocomp Power Pod