The Dura Ace PowerMeter (8 strain gauges) has an accuracy of 2%.

Includes:

• SRM Wireless PowerMeter
• Chain rings Dura Ace 9000
• BB Not Included

NOTE:This unit does not include a Computer Head. SRM Power Meters are ANT+ Compatible. Use of any ANT+ computers is possible to get power read outs from SRM. Please select the computer head of your request separately.

List of ANT+ Compatible Computers:
– SRM PC7
– SRM PC6
– CycleOps Cervo 2.0
– CycleOps Joule
– Most Garmin Edge
– Most Garmin Forerunner