The Sigeyi AXO Praxis Road Power Meter is one of our better selling power meters. It measures power from both legs, is reliable, accurate and is reasonably priced. However, not all Praxis cranksets can fit the Sigeyi power meter spider.
Specifically, if your Praxis crankset uses the 3-bolt direct mount interface, then the Sigeyi will work. Direct mount cranksets (left image) have drive-side crank arms that can be removed from the crankset. They can also be identified by 3 bolts located on the inside of the spider which are used to secure the drive-side crank arm to the spider.
Two more notes…
1. Some Praxis cranksets come equipped with direct mount chainrings, while others come with LevaTime 160/104 BCD chainrings. In either case, you will need to purchase new Praxis Works Buzz Road Chainrings or Praxis Works Buzz Sport Road Chainrings as direct mount or LevaTime chainrings won’t work with a power meter spider.
2. The smallest inner chainring that will fit on this power meter is a 34T. It is not compatible with Praxis 48/32 chain rings.
Upgrade to Praxis Direct Mount
If your Praxis crankset is not direct mount, you can upgrade your crankset to a direct mount version. We carry the full line of Praxis cranksets. Some of these cranksets, such as the Zayante, allow you to order just the crank arms which is perfect as the chainrings that come with these cranksets won’t fit the Sigeyi. You would then order Praxis Works Buzz Road Chainrings and would have everything you need!