Visible crew/equipment: At Wall Street's home, as the two men with the axes attack Frank, when the Asian man kicks Frank in the stomach in the shot looking up, the top of the set is visible in the mirror's reflection. (00:29:45)
Visible crew/equipment: When Frank tosses Lai, who's tied up, at the officer she is wearing black protective gear under her white shirt, instead of the usual pinkish top.
Visible crew/equipment: In the initial chase scene just after the shot where you see the two police vehicles following the BMW into a narrow lane there is a head on shot of the BMW, all throughout this shot you can see the side/brake lights of the camera car reflected in the driver's side headlight, and the grill when the BMW is really close. (00:05:00)
Chosen answer: You notice that Frank removes those items from a bicycle frame. Those are stirrup-style rat trap bicycle pedals. They have serrated metallic edges which supposedly give Frank traction on the concrete floor, despite the oily mess.
Charles Austin Miller