In Pictures: Spiny 2 e-bike kit clicks onto your bike in three seconds with friction drive

The Spiny 2 kit promises to turn an ordinary bicycle into an e-bike in about three seconds.

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Friction-drive systems like the Spiny 2 aim to offer a lighter alternative to hub and mid-drive motors.

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The kit claims up to 20 mph of assistance and a 90 km range, figures that remain unverified by independent testing.

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Commuters weighing a conversion kit against a purpose-built e-bike have plenty of options to consider.

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At 2.2 kg, the combined motor and battery unit is designed to be carried and snapped on as needed.

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The Spiny 2 is pitched as a street-legal upgrade for riders who want a boost without buying a new bike.

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Reviewers have not yet tested the Spiny 2, so real-world performance and range remain uncertain.

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Kickstarter backers should treat the claimed 90 km range with caution until independent tests confirm it.

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The removable design lets riders switch between a standard bicycle and assisted riding in seconds.

Photo by Team EVELO on Pexels