Riding a bike is good exercise and great fun. But what do you do with a bike after you outgrow it Nicole Basil, 12, has a terrific answer to this question. When she was 8 years old, she 46 Pedal Power. It is a charity that collects bikes that kids have outgrown and donates them to Chicago public schools. Since 2008, Nicole has collected and donated more than 1,000 bikes. 47 the bicycles, Pedal Power supplied riders with 400 helmets (头盔) last year. “It is important to ride 48 on a bike, and helmets are a big part of that,” Nicole says. The Wilmette Bicycle & Sport Shop helps to 49 that all donated bikes are safe to ride. Each bike receives a five-minute 50 by the shop’s employees. The bikes are given to students who have good grades and perfect attendance. Nicole says: “Some kids aren’t as lucky as others, 51 they still do well in school. I think they should be 52 for that.” Nicole has received e-mails and phone calls from parents and teachers that say test 53 are improving. “Bikes can take you far,” she says. “Good grades can take you even 54 .” Barton Dassinger is the principal of Cesar E. Chavez school in Chicago. Students in his school have received bikes. “It’s been a great way to 55 students to do their best,” Dassinger says. “They work hard to make it happen.”