I had the front wheel out yesterday, for a good clean and to grease the axle.
I obviously used the directional arrow on the tyre to make sure it was the right way round. (hoping the garage had it right when the tyres were fitted!!)

Just wondering when I change the tyre in the future, is there an obvious way to tell the correct way around with the twin discs? Should I mark the wheel up before hand or am I missing something and will it only go back in one way?

Confused! :