I have about 500 miles on my Garmin rally spd pedals. I’ve done some rough gravel and a little bit of single track in my area. I haven’t beat them up too bad just yet.
I must say they are pretty precise with measuring power and I haven’t had any problems.
The only thing I did notice is to calibrate once you start riding, then warm up for about 10 minutes outside and re-calibrate before you start your workout/event or whatever. That way you get an accurate measurement.
In the instructions that Garman gives you they actually tell you to warm up first to bring it he pedals up to the temperature that you will be riding in for accurate power measurements.
They are the one sided power meter spd pedal FYI.
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