SRAM GX Eagle Powermeter D1
GX Eagle Powermeter D1
GX Eagle Powermeter D1
GX Eagle Powermeter D1
GX Eagle Powermeter D1
SRAM

SRAM GX Eagle Powermeter D1

In Stock

The SRAM GX Eagle Powermeter D1 integrates Quarq DUB-PWR inside the DUB spindle for subtle, accurate left-side power measurement. Lightweight aluminum GX crankset, ANT+/Bluetooth LE, user-replaceable AAA battery, Boost 55mm chainline.

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Available Options

Option Price Availability
SRAM, GX Eagle Powermeter D1, Power Meter Crankset, Speed: 12, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 32, DUB, 175mm, Grey, Boost — In Stock
SRAM, GX Eagle Powermeter D1, Power Meter Crankset, Speed: 12, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 32, DUB, 170mm, Grey, Boost — In Stock
SRAM, GX Eagle Powermeter D1, Power Meter Crankset, Speed: 12, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 32, DUB, 165mm, Grey, Boost — In Stock
SRAM, GX Eagle Powermeter D1, Power Meter Crankset, Speed: 12, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 32, DUB, 160mm, Grey, Boost — In Stock
SRAM, GX Eagle Powermeter D1, Power Meter Crankset, Speed: 12, Spindle: 28.99mm, BCD: Direct Mount SRAM 8 Bolt, 32, DUB, 155mm, Grey, Boost — In Stock

Product Details

Overview & Technology

SRAM GX Eagle Powermeter D1 uses the Quarq DUB-PWR approach to hide the power sensor inside the DUB spindle, keeping the crankset clean, light, and serviceable. The system measures left-side torque and uses SRAM’s established algorithm to report total watts—delivering reliable power data without changing your chainring or crank-arm setup. The crankset is built from forged aluminum arms paired with a 28.99mm DUB spindle and a direct-mount SRAM 8-bolt 32T ring (55mm chainline) optimized for Boost frames. Connectivity is modern and universal: ANT+ and Bluetooth LE ensure compatibility with head units, watches, and phone apps while a user-replaceable AAA lithium battery offers roughly 400+ hours of use. The assembly is IPX7 rated for waterproofing and designed for the knocks and wet conditions of real-world mountain riding.

Key Features & Construction

Built for trail durability: aluminum crank arms provide a balance of stiffness and compliance for singletrack, while the Quarq sensor inside the DUB spindle avoids exposed electronics that can be damaged in crashes. The DUB-PWR design keeps mass centered and minimizes changes to crankset aesthetics and Q-factor. Practical features: direct-mount 8-bolt 32T chainring (with standard SRAM mounting), 55mm chainline for Boost spacing, 12-speed GX-specific gearing, and a 9/16'' pedal thread. The unit ships without a bottom bracket (BB not included), letting you pair the spindle to the correct DUB BB for your frame standard. Flight Attendant compatibility and industry-standard wireless protocols make it straightforward to add power to a modern Eagle drivetrain.

Fit, Compatibility & Installation

The GX Eagle Powermeter D1 uses the DUB interface and a 28.99mm spindle diameter—select a SRAM DUB bottom bracket for your frame’s BB standard (BB not included). It’s intended for Boost 12-speed Eagle drivetrains with a 55mm chainline and direct-mount 8-bolt chainrings; the included 32T ring is compatible with standard SRAM Eagle chains and cages. Crank arm lengths are available in 155mm, 160mm, 165mm, 170mm and 175mm to fit different leg lengths and pedaling styles. Pairing uses ANT+ and Bluetooth LE to talk to head units, phones, and bike computers. Because the powermeter is left-side only, it calculates total watts from left-side measurement—this yields accurate training data for most riders and is a practical, lighter-cost alternative to dual-sided systems.

Who This Is For

This powermeter is aimed at mountain riders who want accurate power data without switching to a full-coverage, expensive dual-leg system. Ideal for XC, trail, and aggressive all-mountain riders who run SRAM Eagle 12-speed drivetrains and want a subtle, serviceable power solution that integrates with existing GX components. It’s also a great choice for riders upgrading from cadence sensors or single-arm solutions who value durability, easy battery access (user-replaceable AAA), and wide compatibility with ANT+/BLE head units and Flight Attendant-equipped bikes.

Key Features

  • ✓ Quarq DUB-PWR sensor integrated inside 28.99mm DUB spindle
  • ✓ Left-side power measurement reporting total watts for training
  • ✓ ANT+ and Bluetooth LE connectivity for head units and phones
  • ✓ User-replaceable AAA lithium battery — ~400+ hours runtime
  • ✓ IPX7 waterproofing (submersible to 1m for 30 minutes)
  • ✓ Direct-mount SRAM 8-bolt 32T ring with 55mm Boost chainline
  • ✓ Forged aluminum crank arms in 155–175mm lengths
  • ✓ Compatible with SRAM Flight Attendant wireless systems

Specifications

BCD Direct Mount SRAM 8 Bolt
BB Inclusion No
Chainline 55mm
Teeth 32
Connectivity ANT+, BT LE
Crank Spindle Diameter 28.99mm
Crank Arm Length 175mm
Interface DUB
Crankset Material Aluminum
Pedals Thread 9/16''
Primary Color Grey
Speed 12
Drivetrain Spacing Boost

Product Identifiers

Vendor Item # 00.6118.779.000
UPC 710845932014

Frequently Asked Questions

Is a bottom bracket included with the powermeter crankset?

No. The GX Eagle Powermeter D1 ships without a bottom bracket. You need to purchase the correct SRAM DUB bottom bracket for your frame standard (threaded, press-fit, etc.) to match the 28.99mm DUB spindle.

How accurate is a left-side powermeter compared to dual-sided units?

Left-side powermeters like the D1 measure torque from the left crank and use algorithms to estimate total power. For most riders the accuracy is excellent for training and pacing; however, athletes with a large left/right imbalance may see differences compared to dual-sided systems.

How do I replace the battery and how long does it last?

The unit uses a user-replaceable AAA lithium battery with approximately 400+ hours of life. Battery replacement is straightforward—remove the cap on the spindle sensor, swap the AAA cell, and reseal. Always follow the SRAM manual for correct torque and sealing steps to maintain waterproofing.

Will this work with non-SRAM chainrings or drivetrains?

The crankset uses a SRAM direct-mount 8-bolt interface and is optimized for SRAM Eagle 12-speed chains. You can fit compatible direct-mount chainrings from other manufacturers only if they match SRAM’s 8-bolt pattern and chainline, but best results are achieved with SRAM Eagle components.

How do I pair the powermeter with my bike computer?

Enable power sensor scanning in your head unit and select the D1 unit via ANT+ or Bluetooth LE. The powermeter broadcasts standard power profiles, so most modern Garmin, Wahoo, Hammerhead, and smartphone apps will pair. If you have Flight Attendant, integration is automatic for supported SRAM ecosystems.

Is the powermeter durable enough for aggressive mountain riding?

Yes. The DUB-PWR sensor is housed inside the spindle to minimize exposure, and the IPX7 rating protects the electronics from rain and washes. The aluminum crank arms are forged for trail durability, but like any component, avoid severe impacts and inspect regularly after crashes.

Buying Guide

When choosing a powermeter crankset, decide between left-only and dual-sided measurement, consider crank arm length, and confirm bottom bracket compatibility. The SRAM GX Eagle Powermeter D1 is a left-side, spindle-integrated solution that offers a strong balance of accuracy, durability, and price for most mountain riders. Match the 28.99mm DUB spindle to the correct SRAM DUB bottom bracket for your frame, choose the crank length that fits your geometry (155–175mm), and verify Boost/chainline compatibility. If you need absolute left/right power breakdowns, a dual-sided system is required; for most training and racing needs the D1 provides reliable total-watt data with minimal bike changes.

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