KandyBikes Dual water bottle cage adapter, standard cage mount.  This is a newly designed item that can help you get some extra water bottles into your frame. Two water bottles fit inside the common mountain bike q factor of 168 so downtube mounting will work in between pedals on most mountain bikes. Condition is New. Shipped with USPS First Class.  Pictured is the measurement of the width of a typical setup coming in at about 155mm wide.