sram force 1 rennrad SRAM Force 1 Aero E1 DUB Crankset

The SRAM Force 1 Aero E1 DUB Crankset is built around a clean premise: remove the front derailleur, run a single aero chainring, and let the drivetrain do its job without friction or complexity. The carbon crankarms are stiff where it matters — through the pedal stroke and into the chainring interface — while the direct-mount aero chainring profile is designed to reduce drag on setups where every watt counts. It's a natural fit for time trials, triathlons, and aero road builds where a tidy, efficient drivetrain is part of the wider speed equation.

Chain retention comes from the narrow-wide tooth profile, which alternates tooth width to keep the chain seated without a cage or guide — an approach that works reliably across varied terrain and cadence. The DUB spindle system uses a larger-diameter interface for improved stiffness and broad frame compatibility across threaded and press-fit bottom bracket standards. The crankset is also power meter compatible, leaving the option open to add a left-side or dual-sided unit without replacing the crankset itself. Five arm lengths — 160mm through 175mm — cover the range from compact road positions to traditional fit preferences.

SRAM Force 1 Aero E1 Specs at a Glance

• Chainring: 50t direct-mount aero
• Arm lengths: 160 / 165 / 170 / 172.5 / 175mm
• Spindle: DUB (broad BB standard compatibility)
• Ring type: Narrow-wide for 1x chain retention
• Power meter compatible: Yes (sold separately)