The rocket powered bike on a track
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Rocket mountain bike beats speed record

20 May 2013 Last updated at 22:51 BST

The record for the top speed reached on a mountain bike was broken on Sunday.

Frenchman François Gissy reached a speed of 263km/h (163 mph).

The mountain bike powered by hydrogen peroxide broke the previous record of 242.6km/h (150 mph) on a track near Mulhouse, eastern France.