SureStop: Much safer bicycle breaking(cityofhumans.com)1 points·by jtsinghfuture·10 ปีที่แล้ว·0 commentscityofhumans.comSureStop: Much safer bicycle breakinghttps://cityofhumans.com/surestop/#.V8lqLyQ3QjA.hackernews0 commentsPost comment—