Rival AXS Power Meter Left Crank Arm and Spindle Upgrade Kit
Best performance upgrade for cyclists seeking precise power tracking.
Elevate your cycling performance with the SRAM Rival AXS Power Meter Left Crank Arm Spindle Upgrade Kit. This essential component seamlessly integrates with SRAM AXS Power Meter systems, providing accurate power data for your rides. Featuring a 160mm crank arm length and the robust SRAM DUB Spindle Interface, this black upgrade kit offers a straightforward way to add power metering capabilities to your compatible drivetrain. It's a smart choice for dedicated cyclists aiming to track and enhance their performance metrics.
$263.00
Owner Satisfaction
4.6
/ 5
Category Rank
417
/ 2105
#417 in Components
Price vs Category Average
+156%
Above average
Color
Black
/ Black
Who it's for
- Budget-conscious cyclists seeking affordable power data
- Rival crank owners wanting a seamless ecosystem upgrade
- Commuters and riders preferring simple, tool-free maintenance
Who should skip it
- Weight-obsessed racers prioritizing the lightest possible build
- Data-driven pros needing advanced pedal stroke analytics
- Athletes requiring precise data for significant leg imbalances
Performance breakdown
Data Accuracy
Consistent power tracking provides reliable metrics for serious training sessions.
Installation Simplicity
Swapping the left crank arm makes upgrading your drivetrain remarkably straightforward.
Ecosystem Integration
Seamlessly syncs with the AXS platform for a unified digital experience.
Build Durability
The DUB spindle interface ensures long-term reliability under heavy load.
Ergonomic Fit
The 160mm length offers a precise geometry for specific rider preferences.
Weight Efficiency
Adds essential power tracking without significantly impacting your bike's overall weight.
Key Specs
Color
Black
Length
160mm
Spindle Interface Type
SRAM DUB
Model Number
H350818-01
UPC
710845864988
Features
- Accurate power measurement
- Seamless AXS integration
- Durable DUB Spindle Interface
- Designed for performance tracking
- Easy drivetrain upgrade
- 160mm crank arm length
What customers say
This power meter upgrade earns high praise, especially for its excellent value and ease of integration within the SRAM AXS ecosystem. Cyclists consistently note its reliable accuracy, providing actionable training data that enhances performance tracking. Installation is straightforward, making it a convenient enhancement for existing setups. While it uses a replaceable coin cell battery and estimates total power from the left side, these factors are generally accepted trade offs for the component's robust performance and accessible price point. It stands out as a highly recommended solution for enthusiasts seeking dependable power measurement without a premium investment.
Know before you buy
This upgrade kit is specifically designed for SRAM Rival AXS drivetrains. It requires a DUB spindle interface, so ensure your current bottom bracket and crankset are compatible with the DUB standard before purchasing.
No, this is a left-crank-arm-based power meter. It measures the power output from your left leg and doubles that figure to provide an estimate of your total power output.
Changing your crank arm length can alter your effective saddle height and hip angle. If you are switching from a different length, you may need to adjust your seat post height to maintain your optimal fit.
The unit uses standard ANT+ and Bluetooth Low Energy protocols. You can pair it directly with any modern cycling computer or smartphone app that supports power meter connectivity.
Yes, the unit is designed to be fully weather-sealed to protect the internal electronics from rain, mud, and road spray during regular riding conditions.
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Ready to buy?
$263