Most likely cause of knee pain and trouble

30'000+ km road on this Speedplay pedal. Bearings still feel like new and smooth, they got there regular scheduled grease ups about every 2000..3000km. But Py did obviously not took enough attention to the platform abrasion to the outside edge -- now allowing a full 6 degree tilt sideways. After considering all the factors, it is most likely the main cause of his knee trouble -- he rode this bike/pedal at full power at the issue became acute -- together with the cold and neglected warm up factors all multiplied to the bad..

All new now and hopefully good for the next 20'000+ km -- but watching the "gap".