I've had 3 sets of these pedals. In each set the right hand pedal's bearing has failed within 10k miles. They are very difficult overhaul because the end cap is difficult to remove and the bearings are tiny.
They work fine with the supplied shoe cleats but seem to be slightly different from shimano spd so don't work very well with original shimano cleats.
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Designed for occasional and regular cyclists looking for clipless mountain biking pedals at a good price