Affordable power meters for SRAM MTB drivetrains?

[huges84]

So I got the Sigeyi AXO. I found it to be great and didn’t need any correction to be accurate.

Sigeyi Power meter?

I finally found time to install and test the Sigeyi SRAM MTB AXO vs my Assioma Duos on my mountain bike and take them for a ride. I tried them on pavement and MTB trails. I calibrated multiple times during my ride in case there was any break-in or settling needed. The results were quite good. On pavement, pedaling most of the time but varying power a lot, the power meters agreed very close: within 0.3% average power, 1.7% NP but that is mainly due to differences in a few short power spikes. O…