All-City Thunderdome Bike - 700c Aluminum Hot Pink Blink 49cmAll City Thunderdome Bike 700c Aluminum Hot Pink Blink 49cm. Drilled for front and rear brakes and quicker than ever the All City Thunderdome is crafted from our proprietary blend of race ready Alumisonic aluminum tubes. Lightweight and responsive this UCI certified sprinter has proven itself on the boards of velodromes across the globe. On the track or on the city streets its one and only speed is fast. UCI certified track bike Classic round profile