09/16/2016 Stihl has recently made a running change on the 500, 550 & 600 series blowers. This blower has a black grate on the bottom. Blowers with this black grate on them (including the new BR700) will NOT fit on the ST-2 rack. Please use the new ST-4 rack to hold this new style 500, 550 & 600 series. These newer style blowers WILL fit in our General Purpose racks for open (GP-1) and enclosed trailers (ET/GP-1).