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SRM Wireless Training System - SRAM S975 BB30

SRAM S975 BB30

The SRM Wireless Powermeter SRAM S975 (8 strain gauges) has an accuracy of ±2%.
The SRAM Wireless PowerMeter takes a 130mmBCD large chain ring and small chain ring. It can be set up with standard 53/39 and only fits frames with a BB30 bottom bracket.


  • SRM Wireless PowerMeter
  • SRM PowerControl
  • Cranks
  • Chainrings
  • Heartrate belt
  • Wireless speed sensor
  • Handlebar clip
  • Software
  • Manual
  • Multi-charger (works with both 110V and 220V)
  • USB download cable

Note: Bottom bracket is not included!

PowerMeter weight: 810g excl. BB
Battery lifetime: 1400h
Power and Cadence transfer via: Wireless only (ANT+Sport)

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