SRAM Road AXS | How to: Install a Spider-based Power Meter

A one-piece design means this 2x power meter is the lightest, stiffest, and most accurate upgrade for your Force drivetrain. The integrated power meter and chainring combo includes our ultimate Quarq D-Zero technology for right and left leg power readings, accurate to +/-1.5 percent, and our consistent 13-tooth gap on the rings for fast and reliable shifting.

1. Use an 8 mm Hex wrench to loosen the drive side crank arm counterclockwise.
2. Shift the front derailleur inboard to the smallest chainring and remove the chain from the chainring.
3. Remove the crank from the crank spindle.
4. Flip the crank to reveal eight T20 bolts.
5. Use a T20 Torx wrench. Turn counterclockwise and remove all eight T20 bolts.
6. Place the spider-based power meter on a soft surface.
7. Pull the plastic cap off, unscrew the metal cap, and remove the paper insert.
8. Screw the metal cap back on, install the plastic cap, and remove the install sticker.
9. Install spider-based power meter into the crank arm, ensuring the black tab aligns with the crank arm.
10. Loosely install the T20 bolts, turning clockwise.
11. Use a T20 torque wrench to tighten to 4N-m following a star-shaped torque pattern.
12. Put the spider-based power meter crankset on the crank spindle.
13. Tighten clockwise with 8 mm Hex wrench.
14. Put the chain back on the chainring.
15. Use an 8 mm torque wrench and tighten clockwise to 54N-m.

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