Detailed Product Description Heavy-duty Bike1.No.:SPB15-12.Size:22"X28"X1-1/2" ... /O. 3.equipped with full gear case.4.Bell, carrier, stand and rear reflector.5.48T chainwheel, 20T freewheel6.Colour: black ... accessories,discount bicycle accessories,comfort bikes,bicycle manufacture,bicycle supplier,heavy-duty bike,heavy-duty bicycle.