very interesting technology, didn’t know this was possible without a motor
RE: This Bike Can Go 144km/h (89mph) ONLY With Muscle Strength!
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This Bike Can Go 144km/h (89mph) ONLY With Muscle Strength!
This Bike Can Go 144km/h (89mph) ONLY With Muscle Strength!
very interesting technology, didn’t know this was possible without a motor