Aairsk GT900 250W 15MPH Electric Bike 20Mile 21-Speed 36V 13Ah Full Suspension
For adaptable riding, the GT900 features aShimano 21-speed gear system, allowing smooth and responsive shifting across different terrains. Model: GT900. Capacity: 36V 13Ah. Rated Power: 250W. Shifting System: Shimano SIS.