This is a brake proportioning valve for the MK-1 that is installed inside the rear subframe. If the brake balance is poor, replacement is required.AP Brake Control P Valve for Rover Mini MK1SKU: 品番 21A2031¥21,000PriceSales Tax IncludedQuantity*Out of StockNotify When AvailablePoints to noteThe original box often has oil stains, dents, etc.