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Just came back from being serviced at SRM. It was calibrated and the battery replaced. The power meter itself is basically new. Some scuffs on the arms but generally in good condition. Asking $1200us. Located in Canada but will ship globally. Here is the info from SRM:

SRM Shimano Dura Ace 9000 11 Speed

Wireless Powermeter

The SRM Shimano DA9000 PowerMeter is the next generation of seamless dreivetrain integration for Shimano groupo users and Power enthusiasts.
Improving over the 7900 series SRM PowerMeter, the DA9000 now boasts 3000 hours of battery life! Electronic shifting systems make gear changes
faster and virtually eliminates missed shifts, but the forces on the chain rings are much higher than with mechanical derailleurs.

With this in mind Shimano developed the new Dura-Ace 9000 chain rings which are 20% stiffer than previous rings.
This benefits not only the shifting, but also the power transfer from the crank arm through the spider and into the drivetrain.
If you ride Shimano DuraAce 9000 mechanical or Di2 electronic, you will benefit from increased power transmission!
Chainrings.(50/34)



TECHNICAL SPECIFICATIONS

Q-FACTOR 147.5 mm

ANT+ SPORT Yes

BATTERY LIFE 3000 hours

ACCURACY ±1% (Scientifically Proven)

BCD 110 mm

WEIGHT 790 grams

CHAINRINGS 50/34

Font Bicycle Graphics Bicycle frame Bicycle drivetrain part Crankset Bicycle part Gear Machine
 

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