127/140/150mm Children's Folding Kid's Bicycle Crank Arm Hollow Tech Crankset
CRUZbike Children's Bike Crankset. Weight: 473g/127mm(crank). Support the width of the bottom axis: 98mm. Set Weight:630g(25T) 638g(28T) 651g(30T) 659g(32T) 667g(34T) 675g(36T) 683g(38T) 692g(40T).