Officers found one 14-year-old’s ebike was capable of hitting 90km/h. Owners have two weeks to appeal the seizure before the bikes will be crushed

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Dozens of high-powered and illegal ebikes have been seized by police on Sydney’s northern beaches just weeks after the force was granted new powers to destroy dangerous bikes.

The operation was part of a coordinated push with the New South Wales government to ensure people only ride legal ebikes that have not been modified to reach high speeds.