* Product image may vary. Refer to the description for accurate details.
SRAM XX SL Eagle T-Type Power Meter Spider for Threaded Mount Chainrings
Sale price
$530.00
Regular price
$530.00
Prices subject to change. How pricing works →
-
- RA price match promise
-
Pay later with
In Stock Ships Immediately
In Stock Ships in 1-2 weeks based on its location
Permanently Sold Out — Chat with us about updated options!
SKU: 00.3018.345.000
Pickup available at RA Cycles Brooklyn
Pickup available at RA Cycles Walnut Creek
Qualifying customers may be able to pay with their HSA or FSA through Flex. Flex disclosures (opens in a new tab)
Stock Availability by Location
RA Cycles Brooklyn In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
105 5th Ave, Brooklyn, NY 11217718-636-5242
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
RA Cycles Walnut Creek In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
Distribution Center - East In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
Distribution Center - Central In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
Questions about this product?
SRAM XX SL Eagle T-Type Power Meter Spider for Threaded Mount Chainrings
$530.00
SRAM XX SL Eagle T-Type Power Meter Spider for Threaded Mount Chainrings Info
The SRAM XX SL Eagle T-Type Power Meter Spider for Threaded Mount Chainrings brings SRAM's top-tier power measurement to riders running Eagle Transmission cranks. Spider-based and purpose-built for the T-Type ecosystem, it delivers dual-sided power data with ±1.5% accuracy from a package light enough to forget it's there. This is SRAM's most accurate power meter, designed without compromise for riders who need reliable data on every ride.
The thread-on chainring mount is the defining design choice. Rather than conventional bolt-on attachment, SRAM's proprietary threaded interface between the spider and the T-Type chainring — available in 32–38t — reduces weight and eliminates the reliability concerns that small bolts under sustained load can introduce. Compatible with all Eagle Transmission 8-Bolt cranks via SRAM's DUB spindle standard, the spider fits cleanly into the existing drivetrain without adapters or compatibility headaches.
MagicZero handles automatic calibration while you ride, removing the pre-ride zero ritual entirely — the spider checks and recalibrates itself on the go, so data quality isn't dependent on the rider remembering to zero before a hard effort. AxCad measures cadence internally, with no external magnet to mount or lose. Battery life is 200 hours per user-replaceable CR2032 cell, keeping maintenance genuinely infrequent. The spider broadcasts simultaneously over Bluetooth LE and ANT+, pairing with any head unit on the market. For AXS ecosystem riders, it integrates directly with Flight Attendant — SRAM's automatic suspension and shifting coordination system — and is managed through the SRAM AXS app for battery monitoring, firmware updates, and configuration. IPX7 waterproofing (1m for 30 minutes) handles wet rides without concern.
Specs at a Glance
- Compatibility: Eagle Transmission 8-Bolt cranks
- Spindle Interface: DUB
- Chainring Mount: Proprietary thread-on (T-Type)
- Chainring Range: 32–38t
- Measurement: Dual-sided (total watts)
- Accuracy: ±1.5%
- Battery: CR2032, user-replaceable, 200-hour life
- Connectivity: Bluetooth LE + ANT+
- Waterproofing: IPX7 (1m / 30 min)
- AXS Compatible: Yes — Flight Attendant, AXS app
Design Benefits
- Thread-on mount eliminates bolt hardware: Lighter and more reliable than conventional bolt-on chainring attachment under sustained power.
- MagicZero automatic calibration: The spider recalibrates itself while you ride — no manual zero, no degraded data quality from skipped calibration.
- AxCad internal cadence: No external magnet required. One less thing to mount, check, or lose.
- Universal wireless: ANT+ and Bluetooth LE simultaneously — pairs with Garmin, Wahoo, Hammerhead, and any other head unit.
- Full AXS integration: Flight Attendant compatible and app-managed for battery status, firmware updates, and component configuration.
The RA Perspective
The XX SL power meter spider is for the rider who's already committed to SRAM's Eagle T-Type ecosystem and wants power data without adding meaningful weight or complexity to the build. We've spec'd and sold a lot of power meters over the years, and this one earns its XX SL designation — the thread-on chainring interface in particular is a clever solution that removes a potential failure point while keeping the assembly clean and the weight low.
MagicZero is worth calling out specifically. Manual zero calibration is the kind of small friction that riders skip when they're in a hurry, which means data quality quietly suffers over time. Having the spider handle it automatically while riding removes that variable entirely. It's a subtle feature that matters more than it sounds, especially during back-to-back training days when the last thing you want to think about is calibration protocol.
The AXS ecosystem integration is genuinely useful if you're running Flight Attendant — the automatic coordination between suspension and shifting is one of those features that sounds like marketing until you use it on technical terrain. For riders not on the full Flight Attendant setup, the dual Bluetooth LE and ANT+ connectivity means this spider talks to whatever head unit you currently run without any compromise.
At $530, this is a committed purchase that assumes you're in the Eagle Transmission ecosystem or heading there. If that's already your situation, the XX SL spider is the right call — accurate, low-maintenance, and fully wired into the rest of the system without requiring anything extra from you.
PRICE MATCH GUARANTEE
We will price match against advertised or quoted prices from other authorized dealers of the product!