A Single Chainring With A Wide-Range Cassette Is A Wonderfully Clean Way To Tackle So Many Disciplines, And We'Re The 1x Leaders. Our Lightweight And Strong Direct Mount Chainrings Feature X-Sync Tooth Technology To Maximize Chain Retention, And They Bolt To Carbon Arms With A Spectacular But Subtle Finish. The Wide Chainline Crankset Fits In Road And Mtb Bottom Bracket Standards So Frames Can Fit Wider Gravel Tires. Crankset Force 1x Wide D2 Dub - Unicorn Grey W/Laser Foil - 170mm Direct Mount 40t . Features:- 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- Can Be Upgraded To A Power MeterSpecifications:- Speeds: 12- Bb Compatibility: All Sram Road Wide Dub Bbs, Except Ai- Chainring Size: 40t- Crank Arm Length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm- Chainline: 47.5mm- Bb Spindle Interface: Dub- Chainring Material: Aluminum- Bolt Circle Diameter (Bcd): Direct Mount (Dm)- Crank Arm Material: Carbon