Back when class B was known as tCA's and the depiction was as an upside down wedding cake, we said:
the airspeed restriction below the LATERAL LIMITS of the TCA was 200kias. Having gone into KMDW in the 737 shortly after the increased speeds required to protect against rudder hardover, we would frequently fly for many miles with flaps down (partially)...it stinks...but we obey the rules!