SRAM Rival AXS E1 DUB Power Meter Crankset

The SRAM Rival AXS E1 DUB Power Meter Crankset brings training-grade power data to riders who don't want to compromise their drivetrain to get it. The spindle-based meter measures left-side power and doubles it to calculate total output — a clean, lightweight approach that adds less than 40 grams over a standard crankset. Arms are aluminum, the construction is IPX7 waterproof, and a single AAA lithium battery is designed to deliver over 400 hours of ride time before you need to think about it again.

The DUB bottom bracket interface keeps installation straightforward across a wide range of frame standards, while the wide chainline is engineered for Full Mount derailleur compatibility. Direct mount chainrings with X-SYNC tooth profiling are designed to maintain consistent chain retention across both the 46/33 and 48/35 ring combinations — useful on long road rides and mixed-terrain routes where chain security matters. Available in crank arm lengths from 160mm to 175mm to suit a range of rider setups.

SRAM Rival AXS E1 DUB Specs at a Glance

• Power measurement: Left-side spindle, doubles for total output
• Battery: AAA lithium, designed for 400+ hours of ride time
• Waterproofing: IPX7 rated
• Weight penalty: Less than 40g over standard crankset
• Chainring options: 46/33 or 48/35 — crank lengths 160mm to 175mm