Stages
Dura-Ace 9100 LR Dual-Sided G3 Power Meter Crankset

Stages Power LR is built on to a Shimano Dura-Ace R9100 crank set, placed on both the drive and non-drive side of the crank in order to independently measure a rider's left and right legs.

Tour Proven

Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.

Active Temperature Compensation as standard equipment

Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions. ATC is the key reason a rider can trust data from Stages Power in all conditions.

Individual meter calibration for the most accurate results

Each Stages Power meter is calibrated individually to ensure a +/- 1,5% accuracy level, which is an industry best for non-scientific power meters. Individual calibration for the dual-sided option means that you can trust the data produced by our system, as it's a real measurement and not an estimation.

Specifications

Accuracy: +/- 1,5% accurate in all conditions

Power meter housing: low profile design, with robust door interface. Tool free battery replacement on the left arm and phillips head screw access on the drive side

Weight: Only adds 35g (Stages Power LR) / 15g (Stages Power L) / 20g (Stages Power R) to base crank set

Battery life: 175+ hours (Stages Power LR, via 2 coin cell: CR2032), 200+ hours (coin cell: CR2032) when used as a single sided Stages Power L or Stages Power R meter

Power range (Watts): 0 - 2500

Cadence range (rpm): 20 - 220

Water resistance rating: IPX7

Options

Stages Power LR 

Crank length 165mm, 170mm, 172.5mm, 175mm

Chainrings 50/34, 52/36, 53/39

Additional Features:

Active temperature compensation

Accelerometer based cadence measurement or the option to use a Hall-Effect based system with magnet

Wirelessly upgradable firmware

LED indicator for visual indication of battery levels and zero reset confirmation without connected app or headunit

Updated accelorometer and addition of gyroscope for improved cadence resolution

NFC tap to pair for some phones and devices

Upgraded BLE and ANT+ radios offer a 6x improvement of data transmission strength

Compatibility

Stages Power LR is compatible with all Shimano Hollowtech II, 11-speed, road drivetrains.

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

Software Compatibility: Stages Link, Training Peaks, Strava, Garmin Training Center and others 

Device Compatibility: ANT+, Bluetooth Smart Ready 

In the Box

Stages Power LR

Non-drive-side power meter

Drive-side power meter

Shimano chainrings

2x high quality CR2032 coin cell battery

Lifetime access to Stages Link for power meter management and firmware upgrade.

2 months free access to Stages Link premium training and coaching features.

Product Identification Card with Serial Number and ANT+ ID Number.

User Guide