Oh man, quality control was everywhere...each station had a computer checking torques & the machines couldn't go any tighter than preset...I saw a gas tank that had been marked with "quality" to redo...I couldn't find the bad place even though somebody had marked it - that speck would've gotten by any owner ....I saw a couple of frames that had been painted & were back for stripping because the paint wasn't good enough...& a few items where the robots' welds were being redone by humans.
...inspectors pull bikes off the assembly line at random, take them for a 25 mile ride & then disassemble them for inspection...if they find anything wrong with it, they put it in the employee cafeteria & the team that built it has to inspect it & make corrections.
...tour guide said only certain people can work in paint as their diet is restricted to items that don't contain certain oils (peanuts, some meats, etc) as, even through their breath, the oils can affect the paint.
...& there's one line of bikes where each bike is built by only 1 guy - & only 9 people per shift work building that particular bike.
I was impressed with their quality control.