●The sprocket data in the table are reference sizes.Be careful because the data may differ depending on specification or model year.●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.)●The wheel size changes to 17 inch.Speed meter adjustment is required as a result of changing the wheel diameter.Because it is an inspection item for passing the vehicle inspection, be sure to perform.The total length and height of the motorcycle changes.The side stand must be shortened.(42310-29F10 for DR-Z400SM can be used on DR-Z400S.) For motorcycles that a spacer (or shim) is installed between the normal brake disc and rear wheel, make sure to use that spacer (or shim). However, if deformed or damaged, replace with a new one.●Genuine front brake disc bolt is required separately.