In 07, the KTM 85SX MSRP was $4,298.
400cc 5wt fork oil
.5 L
stock gearing 60 mph
the ktm 85sx. it beats all of the others
with stock gearing 60mph
32:1.
5.1 on my 2004 model
YES
fill it with oil full, 170 psi nitrogen. dont mess it up.
well i have a ktm 85sx small wheel. if you want to know the best 85cc bike its the ktm 85sx. its so much more powerful than the rm 85l and the rm85. It is leathel! but then again it cost about six grand. but you wont be dissapointed because with power like this youll be hanging on. For trail though i would still recomend the sx. it gets out of tight spots with ese. any way if you have the money and are looking for a 85cc get a ktm sx but it is for the more advanced riders. the rm is more of a begginer motorcross bike if u get it stock. hope i helped!
Most likely you are hearing piston slap. Probably time for a new top end.