Tyre Size

MonkeyBusiness · Post by **MonkeyBusiness** » Wed Apr 11, 2007 7:24 am

I was wondering what the biggest (widest) possible tyre size is that can be fitted to a standard ZXR400 L rear wheel. I know that they have a 160 as standard.

Can one go bigger without the tyre rubbing on anything, and will it fit the standard rim?

RedexRobB · Post by **RedexRobB** » Wed Apr 11, 2007 3:00 pm

I think you can for a 170 without the tyre rubbing, but why go to a larger rear tyre?

Caz · Post by **Caz** » Wed Apr 11, 2007 7:43 pm

didnt this come up a few weeks back?

every tyre is designed to go on a certain sized rim. I guess you shouldnt have any problems getting a 170 on and a 180 will probably fit if you reduce the aspect ratio accordingly.
However, why on earth you would want to do this I dont understand. you'll just make the bike turn in slower - but if you want to ride in straight lines go for it

MonkeyBusiness · Post by **MonkeyBusiness** » Thu Apr 12, 2007 10:36 am

Wouldn't a slightly wider tyre have more surface area to create better grip during cornering? If so, wouldn't the extra grip be worth the slightly slower turn-in speed?

Post by **masterofinsanity** » Thu Apr 12, 2007 10:42 am

have you ever tried cornering on a superdream??

MonkeyBusiness · Post by **MonkeyBusiness** » Thu Apr 12, 2007 10:53 am

Silly question, but what the heck is a Superdream??

Caz · Post by **Caz** » Thu Apr 12, 2007 12:06 pm

MonkeyBusiness wrote:Wouldn't a slightly wider tyre have more surface area to create better grip during cornering? If so, wouldn't the extra grip be worth the slightly slower turn-in speed?

yes, you will increase the contact patch, but you dont need to do this on a ZXR. You have bikes putting out almost 3 times the ZXRs power and they are only running a 180 rear

Post by **deviant** » Thu Apr 12, 2007 12:51 pm

and if the standard tyre size has enough grip to start decking out bits of the bike (pegs, exhaust, etc) then is there any point increasing it as you can't lean any further anyway, and hence can't go faster.

Post by **masterofinsanity** » Thu Apr 12, 2007 1:39 pm

MonkeyBusiness wrote:Silly question, but what the heck is a Superdream??

superman · Post by **superman** » Thu Apr 12, 2007 1:40 pm

LOL! case closed.
i think a bot has posted in information by the way

Post by **masterofinsanity** » Thu Apr 12, 2007 1:43 pm

superman wrote:LOL! case closed.
i think a bot has posted in information by the way

seen it deleted it

superman · Post by **superman** » Thu Apr 12, 2007 1:47 pm

Wicked,
im gona try to post that membership of today iv just put it in an envilope, went off for the bank holiday without writing the address down (that was daft). anyway all i need now is a stamp.

MonkeyBusiness · Post by **MonkeyBusiness** » Thu Apr 12, 2007 2:02 pm

Thanks all for the insightful feedback. So, I suppose, the only reason left to increase the size of the tyre would be that the bike would look like a bigger bike i.e. ZX6R.

Post by **masterofinsanity** » Thu Apr 12, 2007 2:59 pm

going back to the original question what is the width of the zxr400 wheel?

MonkeyBusiness · Post by **MonkeyBusiness** » Fri Apr 13, 2007 8:04 am

Well, the manual says that a 160 tyre is standard at the rear, and 120 in the front.