GT Siren 20'' Pitch GreenThe GT Girl’s Siren 20 is a Steel, Single Speed, Rear Coaster kid’s bike. It was designed with the image of a BMX bike in mind, so the body, pedals and a few other parts were made to imitate one. The rear coaster system put in place is in addition to the rear hand brake on the handlebars, allowing kids to adapt from coasters over time, at their own pace.038675204546
