FSA Powerbox Alloy Road Bike Power Meter

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.