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Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,167
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
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Overly preloaded bearings are pretty normal for many mass produced parts, and the lower the cost the less attention has been paid for in the part's making. Bearings do wear in. It's the initial part of the bearings wearing out in time. When we decide to say "the bearings are worn in" and when we say the "bearings are wearing" is a big shade of grey.
Do the pedals work well enough for you to ride the bike with out issues? If so than they met the goal of the manufacturer.
Some pedals have cup and cone loose ball bearings with an adjustability design (threaded con e and lock nut). Some people can readjust their pedals for nicer spin. Many find this to be a rather frustrating effort given the lack of room to work in and wrench flats that are somewhat blocked by the rest of the pedal. Andy
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AndrewRStewart