Schwinn Thrasher Adult and Children’s Bicycle Helmets For $13.99-$14.99 Posted on July 13, 2017 by Jeri Update: Deal over. These prices are valid for today only, July 13. Schwinn Thrasher Adult Micro Bicycle black/grey Helmet Adult: $14.99 Schwinn Girl’s Thrasher Microshell Helmet: $13.99 Schwinn Child Thrasher Microshell Helmet: $13.99 Share the love: