According to CNS baby strollers dynamic durability test specification
Baby Stroller Durability Tester
●Test Speed: 1.4±0.1m/s（About 5 km/h）
●Effective Width: About 1500mm
●Max Load: Max 100Lb
●Power: AC220V 1.5 KW or specified by user
●Ramps Material: Rigid materials
●Speed of wheels to contact with ramp: 30±1 times per minute
●Vehicle handlebar angle: 15° with the horizontal plane
EN 1888 / AS/NZS 2088-2013