There are several power meters that will work on a Praxis crankset, however compatibility depends on if you have a direct mount or standard Praxis crankset. Direct mount cranksets (left image) have drive-side crank arms that can be removed from the crankset. If you were to view the backside of the crank, you would see three small bolts or screws that secure the crank arm to the spider or chainring.
Standard cranksets (right image) have a one-piece drive-side crank arm and spider. That is, the crank arm and spider are one solid piece of aluminum. Most modern Praxis cranksets are direct mount.
Praxis Crankset Power Meter (Spider Based)
For Praxis Direct Mount cranks:
If you have a direct mount crankset, we recommend either a power2max or Sigeyi power meter spider. These Praxis power meters measure power from both legs and will bolt directly onto your crankset. In many cases, you can even use your existing chainrings.
One of our go-to power meters for Praxis direct mount cranksets is the power2max Praxis Road Power Meter. It’s accurate, durable, measures power from both legs and is reasonably priced.
If you are not sure which version of Praxis crankset you have, we recommend reading this: I have a Praxis road crankset. Can I use a power2max power meter?
Sigeyi makes a very similar spider-based power meter for Praxis crankset. Like the power2max, it measures power from both legs, is accurate and reliable. However, we note that it’s a bit more affordable than the p2m.
Pros: Moderately priced, VERY reliable, don’t have to change crankset, measures both legs
Power Meter Pedals
For All Praxis cranks:
Power meter pedals can be installed on any crankset. They are reliable, accurate, easy to install and can be moved between bikes. We carry every power meter pedal available including ones from Favero, Garmin, SRM/LOOK and Wahoo. This includes both single- and dual-sided versions as well as pedals for SPD-SL, LOOK Keo and Speedplay cleats.
Pros: Easy to install, works on any bike, can move from bike to bike, don’t have to change crankset