I'm curious what goes into preparing a bottom bracket on a new bike assembly. My bottom bracket (on a bike with less than 300 miles) is torqued to spec (confirmed twice over), as are the pedal bolts and everything else in the vicinity. There's still clicking going on no matter how I ride (over bumps, out of the seat, coasting, etc.)
Today I popped into another store while picking up some tools and had a new mech look at it yet again. He says the bottom bracket appears to not have been prepped before installation, which may be causing the click. He was able to easily and quickly replicate the click by standing on the bike and pedaling backwards at short increments. He confirmed that everything was tight.
What does bb prepping entail, exactly?
Thanks in advance!