Never use a rear-facing child car seat in a seat protected by an active frontal airbag.

BBC: NEWS | UK | Politics | 'Use car seats up to age of 11'

She started her career at Salomon Brothers, and then took a break to rear her first child.

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Your height, inseam and weight are all taken into account - even the possibility that you'll be toting around a toddler in a child seat on the rear rack is considered in the equation that decides the final shape of the frame.

ENGADGET: Engineering a better bicycle with DBC City Bike Design Alt