(949) 535-3742
SRAM XX Eagle AXS Transmission Left Arm Spindle Power Meter
June 27, 2025$705.00
An easy way to add left leg power to your SRAM XX Eagle T-Type crankset
We offer free shipping on orders in the U.S. of $75 or more.
We also ship fast! In stock orders placed before 4 pm PT almost always ship the same day!
Shop with confidence! We offer a simple, 30-day policy where you can return new, unused items for a refund, exchange or store credit.
SRAM XX Eagle AXS Transmission Left Arm Spindle Power Meter
The SRAM XX Eagle AXS Transmission Left Arm Spindle Power Meter is an easy way to add power to your XX Eagle T-Type crankset. Simply replace your current left crank arm with the XX power meter and you’ll have power on every ride! Featuring SRAM’s DUB-PWR design, the power sensors are neatly and securely packaged within inside the DUB crank spindle itself. This results in a clean integration, minimum weight and maximum compatibility. The power meter gets 400+ hours of battery life off of a lithium AAA battery and is fully compatible with SRAM’s Flight Attendant.
Key Product Details
Compatibility:
This power meter is compatible with SRAM XX Eagle Transmission cranksets. Please see Compatibility tab for more information.
Power Measurement:
This SRAM XX Eagle AXS T-Type Left Arm Spindle Power Meter power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force).
Key Features:
Accurate to within +/- 3%, lightweight, 400+ hours of battery life, AAA user-replaceable battery, ANT+ and Bluetooth compatible, easy to install, 2-year warranty. See Specs tab for more information.
Advice From Our Staff:
This is a great, easy way to add power to a SRAM XX Eagle Transmission. The power meter is easy to install and works well. We note however that $643 for left side power is a bit on the more expensive side, but this is mostly due to the fact the power meter comes on SRAM’s top-of-the-line XX Eagle carbon fiber cranks.
Options For This Power Meter
Crank arm lengths: 165 mm | 170 mm | 175 mm
Other Versions to Consider
SRAM XX Eagle AXS T-Type Power Meter Spider: We also sell the SRAM XX Eagle AXS T-Type Power Meter Spider. This power meter will measure power from both legs and is also slightly more accurate at +/- 1.5%. However, you must change your chainring to the SRAM XX SL Eagle T-Type Thread Mount version and the smallest chainring size you can run is 32T.
SRAM XX Left Arm Power Meter Compatibility
This power meter is compatible with SRAM XX Eagle SL and XX Eagle AXS Transmission Cranksets (see images below). This power meter will NOT fit the older generation SRAM XX1 Eagle DUB Crank Arms.
SRAM XX Eagle Left Arm Power Meter Specs
| Name | SRAM XX Power Meter Spindle |
| Bike Type | MTB |
| Location of Power Measurement | Spindle |
| Left or Both Legs Measured | Left |
| Independent Left/Right Measurement | No |
| Installation | Easier |
| Crank Arm Material | Carbon Fiber |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 3% |
| Automatic Temp. Compensation | Yes |
| Weight | TBD |
| Battery Type | AAA lithium |
| Battery Life | 400+ hours |
| Method of Cadence Measurement | Accelerometer |
| Warranty | 2 years |
In the Box
- SRAM XX Eagle AXS Transmission Left Arm Spindle Power Meter
Tools Needed for Installation
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.
Q&A
Have a question about this? Ask the staff.
OTHER CUSTOMERS ALSO VIEWED
-
Garmin's dual-sided MTB power meter pedals for Shimano SPD cleats -
Spider-based, dual-leg, super light power meter for 52 and 55 MM chainline bikes -
SRAM X0 Eagle AXS Transmission Left Arm Spindle Power MeterPrice range: $250.00 through $360.00An easy and affordable way to add left leg power to your SRAM X0 Eagle T-Type crankset
-
SRAM XX Eagle AXS Transmission Power Meter SpiderPrice range: $530.00 through $670.00SRAM's newest, most accurate dual-sided mountain bike power meter
THIS PRODUCT IS FREQUENTLY BOUGHT WITH
-
SRAM's lightest Eagle T-Type flattop chain -
The strongest SRAM chain ever, featuring a flat top that maximizes performance and strength -
Wolf Tooth SRAM 8-Bolt T-Type MTB Direct Mount ChainringPrice range: $84.95 through $89.95Wolf Tooth Drop-Stop B 8-bolt chainrings for your SRAM Transmission (T-Type) cranksets -
8-bolt oval chainring for SRAM Transmission (T-Type) cranksets
Chris Ziomek (verified owner) –
I have been using this left arm power meter for about 6 months and it is solid. I selected the left arm meter because I wanted to keep the 30T chainring. The alternative XX Eagle spider power meters only support down to 32T chainrings. I have spider power meters on two other bikes and the left arm meter tracks the others perfectly. The only difference (and only a slight negative) is that the left arm meter does record more power spikes, especially when there is a drop or jump.
And Power Meter City is awesome! Not only is their website product information incredibly helpful, their technical support is knowledgeable and responsive. They helped me troubleshoot and fix a meter issue with a few helpful suggestions. Thank you Power Meter City!
Power Meter City –
Hi Chris, Thank you for the detailed review! We’re thrilled to hear that the left arm power meter has been a solid choice for you and that it fits well with your setup. We truly appreciate your kind words about our website and customer support; we’re always here to help! If you have any more questions or need assistance in the future, don’t hesitate to reach out. Happy cycling!
Steve (verified owner) –
Got this for my HS racer daughter to simplify chainring swaps on her Supercaliber. Power seems just as accurate as the spider. She used it to watch her power output on Lowgap Grasshopper for a p6 in U19!
Powermetercity.com always ships fast and has great service. Don’t go anywhere else now.
Power Meter City –
Your satisfaction is our reward. Thank you for the kind words and 5-star review, Steve! Please let us know if there is anything else we can help you with!