I opened up one of my commuter bike's cheap PD-M505 pedals for a look today. Just out of curiosity, they're spinning fine after 2400km. Inside they're a horrible throwback to the early 90s: cup'n'cone adjustment, lots of tiny loose ball bearings. I originally bought these because I wanted a set of cleats for new shoes and this pedal deal (including cleats) was only slightly more expensive. Servicing was a fiddly job and, while I managed to bodge it with a flat blade screwdriver and a 10mm socket driver, it'd be best done with a special tool that costs more than the pedals. I might well buy that tool before going into the other pedal.....and I might also shoot a 'how-to' video because, unusually, there's not much good stuff online.











