The best set up for a smooth ride includes big wheels and a lightweight frame. Worth considering is the Women's Globe City 7 www.specialized.com, from specialty bike maker Specialized, which is accessorized with front and rear lights, fenders, and a rear rack large enough to hold your prized Marc Jacobs tote. The bike's low frame guarantees modest mounting on skirt days. Available in Navy. Note: Carry extra AAA batteries for when lights burn out.