●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.)●A 190-sized tyre may touch the drive chain.(Good with Metzeler Sportec M1.)●Genuine front brake disc bolt is required separately.●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.)