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Stages Cycling Gen 3 Power L Cannondale Si HollowGram Power Meter

★★★★★ ★★★★★
MSP £375.00 Save 20%


Stages Cycling
Gen 3 Power L Cannondale Si HollowGram Power Meter

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Product ID: 1408378

Stages Gen 3 Power L Cannondale Si HollowGram Power Meter

This Stages Gen 3 Power L is a left-sided power meter designed to be compatible with Cannondale’s HollowGram Si (2014 or newer) and HollowGram SiSL2 cranksets. Its neat design sees a power measurement device integrated discretely onto the inside of the left crank arm that adds only 20 grams in weight. This power measurement unit doubles the torque produced by the left leg and combines this with its accelerometer-based cadence readings to give a total power value that’s accurate to within 1.5%. An Active Temperature Compensation feature keeps power readings constant through varying conditions, which is particularly valuable if training across different altitudes or within dramatically changing weather.

The data gleaned is wirelessly transported via ANT+ or Bluetooth in real-time to compatible bike computers and smartphones. This information can be downloaded after the ride and analysed with software such as TrainingPeaks, Strava and Garmin Training Centre. Battery life lasts for around 200 hours of riding, and when flat, the CR2032 battery can be easily replaced by the rider. An IPX7 water resistance rating cancels water and dirt ingress, even in the nastiest weather, while wireless firmware upgrades keep the power unit operating smoothly at all times.


  • 1 x left side Cannondale HollowGram Si crank arm with integrated power measurement unit
  • 1 x high quality CR2032 coin cell battery
  • Lifetime access to Stages LINK app for power meter management and firmware upgrades
  • Product identification card with serial number and ANT+ I.D. Number
  • User guide


  • A neat, lightweight, accurate and reliable left-sided power meter for Cannondale’s latest cranksets
  • Compatible with Cannondale HollowGram Si (2014 or newer) and HollowGram SiSL2 cranks
  • The integrated power measurement unit resides discretely on the inside of the left crank arm
  • The power measurement unit only adds 20 grams of weight to the crank arm
  • Power measurement is taken from the left leg only and doubled to give a total power value
  • Power measurements are accurate to within 1.5%
  • Active temperature compensation automatically keeps the power readings accurate through all weather
  • Power range (Watts): 0 - 5000
  • Accelerometer-based cadence measurement is precise and reliable
  • Cadence range (rpm): 20 - 220
  • An LED indicator displays battery level at start up (with no need for connect to an app) and confirms successful zero reset
  • The unit communicates in real-time with compatible bike computers and smartphones via ANT+ and Bluetooth
  • The data collected is compatible for analysis with software such as TrainingPeaks, Strava, Garmin Training Center and others
  • Powered by a CR2032 battery, battery life is 200 hours
  • Once the battery is flat it can be easily changed by the user
  • Wireless firmware upgrades ensure the unit is always operating smoothly
  • Water resistance rating: IPX7

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