Larger Tires — 150 on a 250R
We have talked about putting on larger tires on the Ninja 250R before, and unless you know what you’re doing I still stand by the 140/70/17 as your best choice. And before you do anything I would read through this thread at Kawiforums about these tires and going larger…
However, these 150’s look beefy… Interestingly enough, it looks like the chain guard is still on there — which on other 150’s people have had issues with rubbing. Overall, aesthetically — this is an awesome upgrade..
Super duper mad props goto UniqueX for taking some awesome compare pics and letting us use them on 2Fiddy!
Tires:
Rear: Dunlop Sportmax Touring D250 — 150 / 70 / 17
Front: Dunlop Sportmax Touring D250 — 120 / 70 / 17
So… What size tire are y’all thinking about now? 130 / 140 / or 1FIDDY!
Stock Rear Tire
150 / 70 / 70 Rear Tire
Stock Front Tire
120 / 70 / 17 Front Tire
… The Money Shot …
Mike Said,
July 9, 2008 @ 12:45 pm
I do not recommend you do this 150 upgrade because basically you are pinching the 150 tire onto a smaller rim which results in the sidewalls pinching onto the rim which usually results in alot of sidewall flex when taking turns. From a looks perspective this is ok but its still bad in the end of handling.
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ghillie Said,
July 9, 2008 @ 3:58 pm
Yup, Mr. 2Fiddy and Mike are correct. Looks good, but bad ju-ju. No bigger than 140.
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Jasen Said,
July 9, 2008 @ 4:19 pm
…but i want it
Guess 140 will have to do…lol
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mr. franchise Said,
July 9, 2008 @ 7:09 pm
Those are some bad ass tires! Daddy likey!!!
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bsmith Said,
July 9, 2008 @ 10:08 pm
It all depends on the manufacturer. Go by their recommendations on rim size. For example the Dunlop 501s can comfortably fit on a 3.5 rim. They call for a 150/70b17 on a 3.5″ or 4″ with the preferred being the 3.5. So check the ones you want and see what the manufacturer says about the rim.
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Kenny Said,
July 9, 2008 @ 11:06 pm
I have been eyeballing some 140s, when my tread disappears I might get some
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Chitown Said,
July 10, 2008 @ 2:02 pm
This looks dangerous. Has anyone also noticed that on the very first picture the swingarm if you look closely you can see that the square back end of the swingarm is bent to the left. I def. would not do this mod.
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Chitown Said,
July 10, 2008 @ 2:06 pm
Scratch my last comment the closer I look it seems to be a cover over the end of the swingarm. It still looks dangerous.
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Kenny Said,
July 10, 2008 @ 3:00 pm
o_O Look at the side by side picture of the rear… on the 150 side, the left side of the swingarm seems
to be at an angle … is it supposed to do that?
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daniel Said,
July 10, 2008 @ 5:48 pm
so how much are these tires running?
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Taufik from Indonesia Said,
July 10, 2008 @ 6:45 pm
i already change the rear n front tire of my 250R
rear 140/70/17
front 110/70/17
i choose Bridgestone BT 45
because the stock tire (IRC RX 01) seems not good in the wet
this is the tire
http://ninja250r.wordpress.com/2008/07/05/si-ijo-dah-pake-ban-baru/
sorry its in Indonesian language
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DJAZ Said,
July 11, 2008 @ 1:01 am
Finally some info on this.
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Terry Said,
July 11, 2008 @ 8:27 am
As this being my first bike. I will probably just stay with stock tires for awhile. I might get the 140 since that seems safer in the long run.
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Terry Said,
July 11, 2008 @ 8:28 am
What exactly is accomplished by the wider tires?
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Charles Said,
July 11, 2008 @ 10:02 am
Has anyone seen any swingarm modifications to allow wider tire use? I know a lot of the 600cc & litre bikes have been customized to allow wider rear tires. Not sure that it would add anything other that looks and cost to the 250 given its base horsepower though. I enjoy riding mine enough as it is! Plus, with a comment here I might snag those new brake lines!
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Patrick Said,
July 14, 2008 @ 3:09 am
I think it only looks nice to have a bigger rear. but in terms of performance on this bike, the 130 seems best. It’s probably more worth it to install better tires than the stock.
but I am curious, even if we replaced the rear with a 140 or 150, we really can still use the stock rim?
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daniel Said,
July 17, 2008 @ 5:42 am
so, would it be better to get a wider rim to accomodate a wider tire? i really want a wider rear without compromising safety when turning
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jason Reply:
July 22nd, 2008 at 5:11 pm
i was just wondering if you ever found out if a wider rim could be put on the 2fiddy.
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daniel Said,
July 23, 2008 @ 4:31 am
i havent looked into it. willing to experiment if i had the funds to tho
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Adam Said,
July 23, 2008 @ 9:10 pm
check out the chrome lip on my rims . for only 20 dollars
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Adam Said,
July 23, 2008 @ 9:12 pm
sorry dont really know how to put links . lets see if this works
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Rudy Said,
August 1, 2008 @ 1:26 pm
The size of the tire changed..not the rim..so how did the swing arm get twisted?
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daniel Reply:
August 2nd, 2008 at 12:11 pm
thats true. but since they said a bigger tire on our stock rim is not safe( because its pinching the tire). i was just curious if its as simple as getting a wider rim for a wider tire. if our swing arm can even fit any other rim
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Lil Boy Said,
August 11, 2008 @ 4:05 pm
Is it possible to fit a 150/60/17 tire on the 2008 Ninja 250 rear?
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sputnik Said,
August 21, 2008 @ 2:18 am
Just for your guys info… a lot of guys at the tracks are running bridgestones battalaxe bt016 series tires on there bikes and are getting fastest qaulifying times with them…
They said you loose a little bit of the nimbleness with the tire… but they said the grip and in the corners is great… and supposidly the 150/60 size in the rear does not have a lot of pinch… ( the unsafe part)….
of course like others have said check the rim size charts for the tire you are intersted in…
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Bard Said,
September 23, 2008 @ 5:47 am
As Sputnik said most racers use 150 BT016 in US it seems and in Europe and Australia the 140/70/17 Dunlop Alpha 10s seems to be the thing at the back. Just for fun try to find 130/70/17 back tires… Pretty hard huh, not many choices… The 140 or even 150 is fine if they fit according to rim size chart, and lots more selection to play with as well
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adam f. Said,
September 26, 2008 @ 9:50 pm
yeah id recommend the 140 just to play it safe . just ordered my 140 today.
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Tommy Said,
October 5, 2008 @ 10:27 pm
My friend has a 150 on his bike he races his bike on a track and he told me the bike handles a lot better
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BRock Said,
October 14, 2008 @ 11:13 am
I want these tires where can i buy?
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Stock tires on 250 - Sportbikes.net Said,
November 17, 2008 @ 3:59 pm
[…] might interest you… Larger Tires — 150 on a 250R | Kawasaki Ninja 250R Parts, Reviews, Mods, and Information Seems you can fit a 150 size tire but most recommend 140 for the rear on the new 250. As for […]
Kenny Said,
November 29, 2008 @ 8:11 am
The thing is.. alot of us bought our 250’s thinking “you can’t even tell it’s a 250″ Well, we would be right if it weren’t for the tiny ass little tires they sport stock. Look at that back end with the 150 on it! it’s fuckin’ sexy! I’m definitely doing the 120 in the front and 150 in the back, changing the tire size not the rim is NOT dangerous to your swingarm, although… i agree with the others, it IS pinching the tire and might affect your handling because of sidewall flex. Bottom line, not dangerous but not really progressive.
Doing it anyways! ;]
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