My go to bearings are Enduro.Hi. So, the bearings for the Gen 1 Lefty hubs seem to be the 61805 and 61902. There are a bewildering array of variants, such as those found here: Quality Bearings Online Does anyone have a "go to" replacement model that work well for the applications? There are different kinds of seal, deep vs. normal, etc. Thanks!
Real World Cycling is a good source.
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