Cornering clearance of bikes equipped with floorboards is somewhat limited so scratched floorboard edges are common. This riser kit lifts both floorboards by approx. 20 mm, additionally the floarboards are shifted for- or rearwards by 1”, depending on the sense of installion of the blocks. Quick and easy installation. Basically works with HD floorboards of all years 1986 and up, except Softails 2018→.