FSA Powerbox Alloy Power Meter

FSA Powerbox Alloy Power Meter
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4iiii 105 R7000 Precision 3+

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4iiii 105 R7000 Precision 3+

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Description

Description

If 2 large manufacturers of the cycling industry are cooperating, you can expect a great product. The FSA Powerbox Alloy is an aluminium crank with power meter that measures your power on the spider. The spider is the part of the crank set where the chainrings and the axle are put together. The powerbox only measures on the left for now, but there’s going to be an update so both sides can be measured. This update is expected in August. The FSA Powerbox Alloy is ready for that update.

The FSA Powerbox Alloy crankset is easy to use. Just start pedalling and it works. The Powerbox measures both your power and cadence accurately, without needing a magnet. The 110mm thru with 4 attachment points make it easy to change the chainrings and get back on your bicycle without calibrating. The Powerbox Alloy has a 50 and a 34 chainring.

The battery will be flat after 300-400 hours probably. It is easy to replace yourself, luckily you don’t have to send it to the manufacturer which often is the case with other power meters, saves you time and money. The FSA Powerbox Alloy is also resistant to extreme weather conditions, and is still extremely accurate.

The FSA Powerbox Alloy transmits the data to your cycling computer via ANT+, and is “Bluetooth ready.” You can purchase an additional firmware update which allows you to receive data via Bluetooth. The total weight, measured by FSA, is 751g.
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Reviews

Reviews


4 / 5

Looks good , works well , a little heavy

- Steve 30 March 2017

The powerbox is good cheap option for chainset power meter, easy fit and use , no need to zero each time and appears to be reasonably accurate

Pros & Cons

Cost
Easy fit
Weight

5 / 5

Excellent unit for the money, well made and finished.

- Damien 6 March 2017

Pros & Cons

Accurate readings
Cross-compatible with almost all bottom brackets
Good battery life with common batteries
Price
Really, really easy to fit
Limited compatibility for chain rings
Somewhat heavy

4

Steve, 30 March 2017

Looks good , works well , a little heavy

The powerbox is good cheap option for chainset power meter, easy fit and use , no need to zero each time and appears to be reasonably accurate

  • Cost
  • Easy fit
  • Weight

5

Damien, 6 March 2017

Excellent unit for the money, well made and finished.

  • Accurate readings
  • Cross-compatible with almost all bottom brackets
  • Good battery life with common batteries
  • Limited compatibility for chain rings
  • Somewhat heavy

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Compare the products above
FSA Powerbox Alloy 4iiii 105 R7000 Precision 3+ Garmin Rally RS 4iiii Ultegra R8100 Precision 3+
FSA Powerbox Alloy 4iiii 105 R7000 Precision 3+ Garmin Rally RS 4iiii Ultegra R8100 Precision 3+
3 reviews 9 reviews 1 review 4 reviews
Application Road Road / Cyclocross / Gravel Road Road / Cyclocross / Gravel
Single-/dual sided Single-sided / Dual-sided Single-sided Single-sided / Dual-sided Single-sided
Measuring Position Spider Crank Pedal Crank
Cadence Yes Yes Yes Yes
Crank Length 170 mm / 172.5 mm / 175 mm 165 mm / 170 mm / 172.5 mm / 175 mm 165 mm / 170 mm / 172.5 mm / 175 mm
Crankset axle fit BB 386 EVO (30mm) Shimano Hollowtech II (24 mm)
434,16 From 304,54 From 463,17 From 395,48
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All specifications

General

Brand
FSA
Application
Road
Single-/dual sided
Single-sided / Dual-sided
Measuring Position
Spider
Cadence
Yes
Crankset axle fit
BB 386 EVO (30mm)
BCD
110 mm
Compatibility
ANT+ / Bluetooth
Ratio
50 / 34
Colour
Black