Hayes are a market leader in the design and performance of hydraulic and mechanical disc brakes , and recently acquired sun rims and sun ringle wheel sets for bicycles . they are represented by ms . rhonda kirkwood , hayes vp general manager 交通秩序的整治重点则包括自行车电动自行车助力车等非机动车无牌无证乱停乱放闯红灯骑车带人走快车道等交通违法行为。
