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yep, but all in all, a used 125 will most likely cost less to repair/maintain that a used 250f, i mean, drive, tires, bearings are all the same, but once you do a top end, the 125 will be under $150 and the 250f will be over 500, assuming you replace the valves, piston,cam chain.... Rotella is great, nice and cheap, just like the lucas pre mix i use for $6 a quart vs $18 a quart for the name brand. Plus, it appears that 125's are dirt cheap in the UK, especially compared to 250f's! Also, they are super easy to work on... I find changing a top end on a 2 stroke easier than changing a dual rim lock tire lol..