I've got used to how far it will go on the 2 Litre reserve but have run out of that a couple of times. It's not a problem though as there is at least another 1/2 litre on the right hand side of the tank which can be transferred to the left either by lying the bike down or as I now do in my old age, lifting the tank and tipping it over to the left. I don't remove the fuel hose to do this so it's an easy operation.