The Crank Is The Very Center Of Our X-Range Gearing Philosophy. With Tight 13-Tooth Gaps Between Chainrings Paired To Wide-Range Cassettes, Riders Get More Range While Shifting Less Frequently And Staying In The Big Ring Longer. Our 43/30t Chainring Combo Combined With A Wide Chainline Increases Tire Clearance While Providing Ideal Gearing For Venturing Off-Road. Crankset Force Wide D2 Dub - Unicorn Grey W/Laser Foil - 172.5mm 43-30.Features:- X-Range Gearing Technology Gives You More Range And A Smoother Gear Progression, So You'Re Always In The Right Gear- Crisp And Accurate Front Shifts- Wide Chainline Crankset For Bikes With Up To 700x45c Or 27.5x2.1 Tire Widths (43/30t Chainrings Only)- Longer Dub Crank Spindle Accommodates Both Road And Mtb Width Frame Bottom Bracket Standards For Unmatched Cross-Compatibility Across Brands- Requires Wide Front Derailleur- 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: 43/30t- Crank Arm Length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm- Bb Spindle Interface: Dub- Chainring Material: Aluminum- Bolt Circle Diameter (Bcd): 94 Bcd- Crank Arm Material: Carbon