Review: FSA Powerbox Alloy Crankset

The FSA Powerbox Alloy Crankset is an outstanding complete setup for anyone racing or training with a coach who doesn’t want to spend the big bucks for a carbon crankset – or just doesn’t care about weight. At only 7 oz or so heavier than the carbon version for half the price, this set is a great deal.

On top of that, it’s a very handsome crank that will compliment any bike and groupset. The setup is super easy with a wireless Bluetooth connection to your head unit of choice. It probably took me less than 2 minutes to pair with my Garmin 520 and that includes renaming the device and performing its first calibration.

The spider-based power measurement is very consistent and accurate, I have yet to see any dropouts or spikes with this crankset during the 5 weeks I’ve had it installed.

It also reads right and left leg power output so you can make sure your pedal stroke is balanced. I also really like that it can take both standard and compact-sized chainrings so you have a lot of gear options with one crankset, even if the rings are proprietary which I don’t think is a downside.

If you’re looking for an affordable, versatile and very sturdy crank that can take criterium crashes and winter training rides in stride then the FSA Powerbox Alloy Crankset is for you.


  • Cold forged AL6061/T6 aluminum crank arms
  • BB386EVO 30mm AL 7050 alloy spindle fits every frame (purchase BB separately)
  • AL7075 100% CNC stealth BLACK chainrings
  • New chainring available: 55T, 54T, and 42T for Triathlon and Time Trial; 46/36T for Cyclocross
  • Chromoly chainring bolts
  • Fits Shimano and SRAM 10-11 speed systems
  • Including – Bluetooth
  • System upgrades*: Left/Right-Balance; Pedal Smoothness; Torque upgrade
  • Spider-based power sensors provide total power output measurement of both legs, with Left & Right leg output analysis available with system upgrade*

The FSA Powerbox Alloy Crankset retails for $648.99 at fullspeedahead.com.

For more information on the FSA Powerbox Alloy Crankset,  please visit fullspeedahead.com.  FSA Powerbox Alloy Crankset can also be purchased at your local bike shop.

Review By Ben Foster

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