i had the same problem when i bought my second hand MT03!bike had only 7000km's and when i first tried to turn the bike just wouldn't fall.. i almost crash from the first km's i made!check the bearings as others said!If the previous owner drove the bike very easy and a lot of highway the tires got that shape and made step!thats why you can't lean!push it hard to lean and then check the tyres wear ,if the mark is like slalom then its 100% that this is the issue!
p.s sorry for my bad En i hope you understand me!
