Having both a 250r and a 300 abs I do oil changes at the same time - 4 litres will do both - But what about the filters? $18 for the 300 and $8 for the 250r, seems like the 250 is $10 in front each filter change - The same goes for a new rear disc, with the non ABS I can get one for less than $50 yet because unlike the front disc the abs sender is riveted to the disc and its almost impossible to find rivets to fit the old one, the cheapest I can find is about $180 + p&p. that $140 more. Maths is always fun when two bikes is better than one.