well short story bought a YZ 125 couple of months ago great runner i put vforce 2 reeds in it and uni filter and replaced a crank seal.. i thought it could ride trails.. nope these things are all out race bike, no bottom end to save there lives.. but riding it on the trails is no go i have a hill behind my house to get to the trails its not a hill climb hill but steep enough to where 4wd trucks cant get up and its rocky as hell, blaster flys up in 3rd gear, YZ 1st gear feathering clutch which is really hard on these bikes.. but question would the yz 80/85 be good for trails?