From The Bike Kitchen
The minimal inventory is now maintained on a Google Spreadsheet. See here.
Please check page history for previous lists of recommended minimal inventory.
Stuff to never buy
7/16" Ball Bearings. Pretty much nothing takes this size. Blue Park tire levers. They suck! 4 sided Park spoke wrenches that wrap around the nipple (SW-40 and SW-42)... patrons consistently use them incorrectly and round off spoke nipples