There only one choice kx250f 2010 , there no such bike as a kx250 from kawi in 2010. the 250 f require more maintenance than 250 2t and 450 f , but if you set the head up with stainless steel valves and good valve guides and seats , stronger clutch springs and regular oil changes , piston and ring changes at 40 hr mark and of course clean and oil air filter after every big ride and they last well , I have a 09 250f as well that has 250 hrs on it and still going mind you its had all of the above plus more , in it earlier life it was raced hard , so that to be expected.