Adjustable design, engineered to lower the rear of your motorcycle up to2-1/2Two height choices of 1-1/2 or 2-1/2 provide additional benefits - Lowers the center of gravity, easing handling effort and improvingcontrol Gives the bike a tough, custom stance - Easy to adjust to preferred heights Precision machined 1144 stress-proof steel construction for an excellentfit and easy installation - Clear zinc plated finish - Easy-to-follow instructions are included