Standard drum brand new, as a replacement drum for any cooper s or mini with 1 inch stepped drum. Rear brake drum on all post 1984 cars plus the Mini Cooper “S” 1275GT models which has a built in spacer ( 1″) and uses standard 1 1/4″ shoes (GBS101MS).

It will also fit the front or rear of a non-S Mini, with 1 1/4″ shoes or (1 1/2″ shoes GBS102, on twin-leading fronts only). Fitting to the front increases track width on early front drum brake cars. 7.0″ internal diameter, legal limit that these can be machined is +1.5mm (60 thou)

Alternative part number: 21A1279