SRAM Rival AXS Power Meter Crank Arm
Best affordable power tracking for road cyclists upgrading their drivetrain.
This is the most straightforward path to data-driven training for road and gravel riders. By hiding the power meter inside the spindle, you get clean, reliable wattage tracking without the bulk of traditional spider systems. You sacrifice the dual-sided precision of pro-level setups, but gain a simple, weather-proof upgrade that just works.
$263.00
Who it's for
- Budget-conscious cyclists looking to start training with data
- Home mechanics who value quick and uncomplicated component upgrades
- Long-distance riders prioritizing low-maintenance electronics and easy battery sourcing
Who should skip it
- Competitive athletes requiring total power accuracy and left-right balance metrics
- Weight-conscious climbers seeking the lightest possible bike build
- Riders with non-SRAM drivetrains or older spindle standards
Performance breakdown
Data Accuracy
Spindle-based sensing delivers consistent, reliable wattage data for serious training.
Installation Simplicity
Swapping a left crank arm is straightforward for most home mechanics.
Battery Longevity
Four hundred hours of runtime means you rarely think about charging.
Weather Resilience
IPX7 rating ensures the electronics survive heavy rain and muddy gravel.
System Integration
Seamlessly pairs with existing DUB bottom brackets and AXS ecosystems.
Maintenance Ease
User-replaceable lithium batteries eliminate the need for proprietary charging cables.
Key Specs
Crank Arm Length
170 mm
Spindle Diameter
28.99 mm
Bottom Bracket Interface
SRAM DUB
Intended Use
Road, Gravel
Power Measurement
Left-side
Number of Chainrings
0
Power Meter Included
Yes
Boost Compatible
No
Know before you buy
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Ask Metto anything about the SRAM Rival AXS Power Meter Crank Arm before you decide.
