Colony exon flatland bmx forks colonys exon flatland forks with zero offset are constructed from post heat treated full 4130 crmo tapered multi butted legs heat treated drop outs with weight saving machining and foot friendly end caps make these perfect for flatland use featuresfull 4130 crmo post heat treated fork one piece cnc steer tube with m24 x 15mm fork top cap tapered multi butted legs 5mm cnc heat treated drop outs with weight saving machining 25mm offset 161mm steer tube lengthw