Sram: Force just got faster. Pair the lighter, stiffer Force 1 crank with our aero 1x chainring, available in sizes from 44T-50T. Put the power into your pedal stroke while chasing segments and racing TTs with greater ease and confidence. Features Single-ring drivetrain simplifies functionality and reduces weight Direct mount aero chainrings for better aerodynamics X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control DUB bottom bracket adds durability and simplicity Can be upgraded to a power meter Available in 160, 165, 170, 172.5, and 175mm crankarm lengths SPECIFICATIONS Speeds 12, 13 BB Compatibility All SRAM Road DUB BBs Chainring Size 50T Crank arm length 160mm, 165mm, 170mm, 172.5mm, 175mm Chainline 45.0mm BB Spindle Interface DUB Chainring material Aluminum Guard No Guard Bolt Circle Diameter (BCD) Direct Mount (DM) Crank arm material Carbon Color (Crank arm) Carbon-gloss Power meter No Chain Technology Road Flattop D1, Road Flattop E1 Drivetrain Configuration 1x Front Tooth Jump 0