E-bike, Mountain youth HardFour Model year: 2021 Model year: 2021 E-bike, Youth / Mountain youth Weight: 20.0 kg Suspension: 63 mm Wheel size: 24″ Add Haibike HardFour to comparison Remove Haibike HardFour from comparison Comparison full (3 of 3): remove a bicycle to add Haibike HardFour