SRAM Apex Crankset 1x Wide D1 DUB 170 Direct Mount 40T Aluminium

• Single-ring drivetrain simplifies functionality and reduces weight
• Wide chainline crankset to fit the biggest gravel tires
• Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands
• Compatible with 135mm, 142mm and Boost rear spacing
• SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
• DUB bottom bracket adds durability
and simplicity

DUB stands for Durable Unified Bottom Bracket. It's a bottom bracket and crankset standard that uses a 29mm spindle, which is different to the Shimano 24mm. So ensure you have a bottom bracket that will work together with these cranks! Sram Road Wide bottom brackets are a safe bet.
This crankset is made for a 47.5mm chainline.