The Stages Power meter is built to the proprietary Stages Power carbon left crank arm.  The full carbon fiber Stages Power meter and crank arm is directly compatible (no additional components needed) with 386EVO drive side cranks. It can be retrofitted to SRAM Red 22, Force 22 and Rival 22 BB30 road and SRAM Mountain (168mm Q) BB30, as well as select Truvativ, drive side cranks using three Stages bottom bracket kits (sold separately). This new Stages Power meter will not fit SRAM's GXP bottom bracket interface.
 

The new Stages Power meter is slimmer, and up to 28-percent lower profile than our original meter. It's sleeker by way of a 17-percent reduction in frontal area, and we've also made it stronger. The new housing design increases the strength of the battery door and housing connection by 200-percent over the previous design.

Specifications

Accuracy: ± 2%

Power meter housing: New low profile with new door interface

Weight: Only adds 20gr to base crank arm

Battery life: 200+ hours (coin cell: CR2032)

Power range (Watts): 0 - 2500

Cadence range (rpm): 20 - 220

Water resistance rating: IPX7

Frame compatibility: Most frames, see fit guide in our Support section

Crank Compatibility: FSA 386Evo models + SRAM BB30 Red 22, Force 22, Rival 22 and SRAM BB30 MTB (168Q) models (via bottom bracket kit)

Device compatibility: ANT+, Bluetooth Smart Ready

Software compatibility: Training Peaks, Strava, Garmin Training Center and others
 

Additional Features

• Tool free battery replacement
• Active temperature compensation
• Accelerometer based cadence measurement
• Wireless firmware upgrades