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FSA Road PowerBox Carbon Crankset Power Meter

Josh Matthew December 13, 2017

$1,189.99

Lightweight, accurate, extremely versatile and at a fraction of the price of other, crank-based power meters

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Description

About the FSA Road PowerBox Carbon Crankset Power Meter

The FSA Road PowerBox Carbon Crankset Power Meter is a crank-based power meter, with single-leg power being measured at the spider. Specifically, it uses Power2Max’s proven spider design. The FSA PowerBox Carbon uses FSA’s 7075 aluminum 110 mm BCD chainrings, FSA hollow carbon arms and a BB386EVO 30 mm spindle. The power meter uses a CR2450 battery (which is very easy to replace), gets approximately 400 hours of battery life and is accurate to within 2% (industry standard). The result is an accurate, extremely versatile power meter that comes with top-notch FSA chainrings and crank arms, and costs of fraction of the price of other, crank-based power meters.

 

FSA Road PowerBox Carbon Crankset Power Meter Options

  • Chainring sizes: 53/39 | 52/36 | 50/34
  • Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm | 177.5 mm | 180 mm

 

Upgrade Options

  • Left/Right Power: The FSA PowerBox ships as a left-side power meter. This means it measures the power from your left leg and doubles it to compute total power. At any time, you can upgrade your PowerBox to a dual left/right unit for $50. (Note this is estimated left/right power.)
  • Bluetooth SMART: The PowerBox comes with ANT+ capability. At any time, you can upgrade it to a dual ANT+|Bluetooth SMART unit. The cost of this upgrade is also $50

 

Compatibility

The power meter uses a BB386EVO 30 mm axle. This makes the power meter compatible with virtually every frame set when used with the correct bottom bracket and spacers.

The chainrings are compatible with Shimano 10- and 11-speed groupsets, SRAM 10- and 11-speed groupsets and Campagnolo 10-speed groupsets. This allows you to use a wide variety of chanrings.

 

In the Box

  • FSA Road PowerBox Carbon Crankset Power Meter
  • 2450 coin cell battery
  • Quick Start guide

 

Specs

NameFSA Road PowerBox Carbon Crankset Power Meter
Road/MTBRoad
Power Meter TypeCrankset
Type: GaugeStrain
Number of strain gaugesNA
Weight749, 585
Crank Arm Lengths165, 170, 172.5, 175, 177.5, 180 mm
Battery Type2450 coin cell
Battery Life400 hours
Left/Right Power MeasurementYes (estimated) (available with system upgrade)
Communication ProtocolANT+ (Bluetooth available with system upgrade)
Claimed Accuracy+/- 2.0%
CadenceAccelerometer

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