this is the back of the SSC.
you are correct in stating that without a car running, you cannot check power assisted brakes.
however, not all cars have power assisted brakes.
i can name a ******** of cars that dont have power steering or power brakes.
just as it states that for motorcycles, you must check the chain and guards.
not all bikes have chains, do they ? lol
you can pass a safety without a motor