What are a few of the fastest roller coasters in the world?

1.Ring Racer (Germany)

2.Kingda Ka (NJ, USA)

3.Top Thrill Dragster(OH, USA)

4.Dodompa (Japan)

Ring racer is new and was recently added to the top 5 reaching speeds of 135 mph.Unlike Kingda ka and top thrill, ring racer launches and then goes through a normal roller coaster. Kingda ka and Top thrill dragster lanch and go straight up and down

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