hi bro... greeting from kippers p.j... use 90/80 max for front..if u use 100/70 or 100/80 also can but the look will be funny (more look like a doughnut
)...the zx rim front size is 1.85.. it will fit nice with 90/ series... choose duro, maxxiss, etc etc..for me i use f.d.r mp series..seriously soft compound but really durable for a daily used ( i am only use my bike for going to work, riding, and bodo bodo cornerin
for rear 120/ series is the max u can use... but like all the sifu sifu said before..it will be useless... the wall will be very very rounded...especially if u use Michelin pilot series... really really round ( it will be not look your tyre bigger since the kips zx rim is only 2.5) for me...i use 120/70 (eventhough i know it useless
) but i used Dunlop for super bike front tyre ..so the look is not very rounded at the wall...but still the side wall will be not use at all
... depends on you bro.... i also already seen the crazy friend of mine use 140/60 bt92.... at the end? look weird and sucks man
... the best if you want swap it i think will be 110/70... (on a new bie aka amature vision laa ) hahahaha
anyway enjoy ur bike...ride safe at road...ride crazy at track
... hehehehe aslm!
* oh yeah one more thing... the rounded and ouval shape of every tyre is different each other bro...for an ex: battlax bt92 vs bt090...same size 120/70..the bt090 will look more round on a shape (if my vision not blurry
kekekekek)...also different from each factory: michellin, bridgeston, dunlop, duro, irc, kapcai, blackstone, etc etc... hehehe....