they are all 250cc right? If you are on your learners mate, you will be sorry to know that the rs250 is not legal for learners, due to the power to weight rule! (more than 150kw per tonne!) I went through the same thing a few years ago, the RS 125 is just too small. Ended up buying a CBR250RR, absolute little cracker of a bike. 190km/h top speed, 19,200rpm redline, all less than 160kg, its harder to ride than most bigger bikes! I bought the Tri colour, see pic.