This bush is made in our stiffer Shore A 95 black material, more suited to smooth road and track use. For off road we would recommend using PF99-112P which is made in our Shore A 80 purple material.  Bush Dimensions.  Body Diameter = 43.2mm, Height = 25mm.  Large Diameter = 50.75mm, Height = 7.5mm.  Sleeve Length = 66mm, Bolt Hole = 12mm.