●Separate sold special driven sprocket is required for installation.(Standard sprocket cannot be used.)） ●Wheel replacement, including inching down, changes the steering stability and braking characteristics.Be very careful until your body becomes accustomed to the changes. ●Parts may be required separately, depending on the motorcycle model.Active Digital Monitor is recommended for meter adjustment. ●Order the glass coating specification by adding "Q" at the end of the part number.(Polished wheel is outside the scope of work.) ●Genuine rear brake disc bolt is required separately.。 ●For Export spec., genuine oil seal is required separately for the meter gear side.(Not needed for Japanese model.)