The Sword 2x crankset is designed for climbing. The two chainrings have a 17t gap between them so you get a lower gear range than competitive cranks while still having high gears to push the pace downhill. And it's designed to be as compatible and easy to own as possible: the 24mm spindle is compatible with a ton of aftermarket bottom brackets and it's easy to convert from a 2x to a 1x crank by installing a single chain-retaining ring in the outer position.Wide design optimized for 47mm chainline24mm spindle compatible with Shimano bottom bracketsWider gear range designed to work with Sword front derailleur and shiftersEasy conversion from 2x to 1x Color Gray Rings 46/29, 48/31 Number of Chainrings Double Crank Length (mm) 165, 170, 172.5, 175 Crank Intended Use Gravel Drivetrain Speeds 10 BB Included No Pedal Spindle 9/16" Spindle Interface Type Shimano Hollowtech II Chainring BCD 80 Chainline/Hub Compatibility 135/142 MTB Hubs Defined Color Gray Weight 925