Volunteers got a head start Thursday on the National Day of Service in honor of the 11th anniversary of the September 11th attacks.
Members of several corporations gathered on Manhattan's west side to build 400 bikes for children of active duty families.
It's just one way the 9/11 Tribute Center and USO are drawing attention to Tuesday's National Day of Service and Remembrance.
They're also responding to service members' number one request: to help their families back home.
"Everyone remembers when they were little and wanted a bike, so actually being here and putting them together, it's a great thing," said volunteer Joe Majkowski.
"It's a way of saying thank you," said Lee Ielpi, the president of the 9/11 Families Association. "It's a way of remembering the people behind me here. They all lost friends and colleagues on 9/11 and here we are remembering them, but we're remembering them in a positive way."
September 11th was designated a national day of service in 2009.