Equipped with professional Shimano 7 speed gears, more accurate and stable. Battery: 60V 30Ah/ 1800Wh. Shengmilo S900 Electric Mountain Bike，60 V 30 Ah Battery,Hydraulic Oil Brake,7 Speed Gears,20 x 4.0 Wide Tyre,Double Shoulder Shock Absorber,Adult Mountain Electric Motorcycle Bike.
