One asked to ride the bike. Turned down, he punched the boy's helmet and back as the other assailant grabbed the bike. The pair fled southbound on Alma Street, police said, and escaped a search by officers from Menlo Park and Palo Alto. The boy was uninjured.
The first suspect, last seen riding the stolen bike, was described as a white man about 17 to 18 years old, about 5-foot 7-inches tall, weighing 150 pounds, with short blonde hair, freckles and light eyes. He wore jeans and a gray T-shirt, according to the police report.
Police said the second suspect was a black man about 18 to 19 years old, nearly 6 feet tall and weighing 180 pounds, with short, curly dark hair and medium complexion. He wore dark blue jeans and a white T-shirt.
Police ask that anyone with information about the Aug. 13 robbery call them at 330-6300.