Will a 170 rear tire fit on a 1992 ninja zzr 600?
you "usually" can always go up at least one size and not have a problem, but just take a look at the swing arm/chain areas, and give it a good look and even do a little measuring just to insure you have the clearance. If you have an aerodynamically shaped rear fender that hugs the shape of the tire, you"ll have to take that into account also. I went to a motorcycle show and asked your question to the sales lady and you could tell that it made her uncomfortable, but she seemed to say that going up only one size shouldn't cause too much problems, well i went up two sizes on my cbrf1 inadvertently and i loved it...it took all the Squirreliness out of my highway ride, but it did affect the handling in the mountains when pitching it into the curves; it takes a little more effort now. The previous owner had already gone up one size and i didnt know it!! and i said to myself, oh, i guess i can go up one size from this tiny 140/80 to a 150/70...so you have to know what the stock design limit is for your bike before making these changes. Also always try to stick to your stock profiles, i purchased some performance race rubber from the track with a smaller profile and lost what seemed to me about 10 mph in top speed just due to changing from 80 to a 70 profile.
I will give you some advice that was never given to me and it might even save your life some day. Whenever someone changes your tires for you, dont assume that they will put in the correct air pressure, i found out the hardway and ruined a brandnew tire. i was scrubbing it in on the perimeter of the track because everyone knows you never ride fast with new tires, you have to wear them in and it didnt quite feel right, but i thought this must be what a softer rubber feels like and i got back into the pits and was looking at the tire and it had a tint of blue in the rubber (it had boiled) and i said that wasn't there before, so i borrowed the guys tire gauge next to me and i checked the pressure and it only had 17 psi!! Since then I always carry a tire gauge with me. You know when you go to a track school, you think this is something that they would mention.. and also i had a "false neutral" that i never heard of before, and you "dont" ever want to experience one of those @120mph ...look it up! This is why they design slipper clutches and shimmy dampers and if your racing a bike without either one of these devices, then your either very lucky, or an excellent racer.
I know i went on a bit here, but hope you find this info Very helpful.
