20" Wheels Cargo Utility Stroller and Bicycle Bike Trailer Silver Chrome Please read full "PRODUCT DESCRIPTION" as to why this stroller/trailer compared to others on the market. Before purchase check the width of any doors you may be using this with. Exterior Width: 29 inches Acts as both a stroller and a bicycle trailer. No side rails keeping this trailer more narrow and lighter. Larger 20 inch quick release (push a button) aluminum (rust proof) wheels (competition are 16 inch wheels and several twist of a clamp to remove wheels) 88lb weight capacity. Do not exceed capacity. Manuel wheel break. Quick (push button) release wheels for easy storage. Front wheel swivel and locks. Can be pulled by bike arm.