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Old 05-18-2008, 09:05 PM   #1 (permalink)
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150mm rear tire on 2008 Ninja 250r

Hey guys,
A friend of mine stuck a 150mm tire on his 2008ninja 250. Looks a ton better than the stock 10speed bike looking one that came on it. I was wondering how wide can you go without needing to mod the bike? Thanks!

Last edited by BST001; 05-18-2008 at 09:18 PM.
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Old 05-18-2008, 11:04 PM   #2 (permalink)
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dang, thats a ton bigger.

im not sure you can go much bigger.
doesnt it have a 120 for the rear?
surprised you fit that on it.

post a pic man
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Old 06-12-2008, 05:25 PM   #3 (permalink)
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the widest you can put on there is a 150 according to the Perelli guys at the track. Putting anything bigger on it would be over kill.
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Old 07-20-2008, 09:19 PM   #4 (permalink)
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I think stock rear is 130. My *guess* is that a 150 is the widest you could put on the stock rim with the stock swingarm.

Doing so will make a noticeable change as to how the bike handles (in terms of flickability).
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Old 07-21-2008, 09:28 PM   #5 (permalink)
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Ive heard some mixed things about putting the 150mm on the bike. My buddy says he doesnt notice a difference in handling or acceleration, but then I read on other forums that you can notice a difference. (maybe hes just saying he doesnt notice it i don't know) Anyway, before I do it to mine, do you think it will be an unsafe and/or bad modification to do?
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Old 07-21-2008, 10:51 PM   #6 (permalink)
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Originally Posted by BST001 View Post
Ive heard some mixed things about putting the 150mm on the bike. My buddy says he doesnt notice a difference in handling or acceleration, but then I read on other forums that you can notice a difference. (maybe hes just saying he doesnt notice it i don't know) Anyway, before I do it to mine, do you think it will be an unsafe and/or bad modification to do?

My old GS500 had a 140 on it (130 is stock). The only reason to go to a thicker tire on a 250r on the street is for looks.... i.e. to make it look more like a 600/1000 supersport.

As long as nothing is touching/rubbing the tire, chain, or swingarm then it is 'safe'... but I can't think of it offering any advantages to the bike. There will (in theory) be more contact patch available, but the profile of the tire will have to be fairly tall (since you will be using the same stock rim).

150mm is still a long ways off from 180mm (which is what the SS bikes rock). I would go to 140mm to play it safe. If the skinny tire really bugs you that much then get a more powerful bike like the 650R
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Old 07-22-2008, 01:17 PM   #7 (permalink)
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I ran a 150 on the 08. It is safe and handles just fine. I didn't notice much of a difference other than the tread compound. You will have a better tire selection with a 150 as far as "sticky's" go. Otherwise, there's no point.
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Old 07-22-2008, 10:02 PM   #8 (permalink)
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I ran a 150 on the 08. It is safe and handles just fine. I didn't notice much of a difference other than the tread compound. You will have a better tire selection with a 150 as far as "sticky's" go. Otherwise, there's no point.
yeah I guess my main reason for going with a 150mm would be for looks. What do you think about the Michelin Pilot Activ 150/70-17 for a 250r? Think itll be ok?
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Old 07-24-2008, 10:56 AM   #9 (permalink)
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the stock is a 130/70-17. If you go with a wider tire, you need to go down in profile. you would have to go with a 150/60-17 or even a 50 series.
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Old 07-24-2008, 09:37 PM   #10 (permalink)
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the stock is a 130/70-17. If you go with a wider tire, you need to go down in profile. you would have to go with a 150/60-17 or even a 50 series.
Gotchya, is that what you ran? 150/60-17?
Thanks for all your help
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Old 07-25-2008, 01:38 PM   #11 (permalink)
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I think so. I had the perelli guys put on the stickiest tire they had that would fit. I know it was a 150 and I'm pretty sure it was a 60 series...it would fit a lot better than a 70 series
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Old 07-27-2008, 05:19 PM   #12 (permalink)
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here's mine!

150/70/17
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Old 07-29-2008, 07:48 AM   #13 (permalink)
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Thats sick dude! Is that the Bridgestone Battlax BT021? looks great. Also did you have your dealer put it on for ya? And how does it ride?

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Old 07-29-2008, 01:02 PM   #14 (permalink)
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Quote:
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here's mine!

150/70/17
holy balls thats a huge side wall
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Old 08-05-2008, 10:40 PM   #15 (permalink)
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The tire is A Bridgestone 150 / 70ZR / 17MC

as far as installation, i went to a local motorcycle shop and had them install it for me. At first they told me that it wouldn't fit, but i insisted that they install it anyway, because it knew it would fit. Anyway this mod is VERY COOL but, The guy that installed this tire for me brought up a good point, i am not a very big guy, 5,5 135lbs the tire clearance is not much at all and if you are a bigger guy the tire will flex while cornering, causing it to rub on the swing-arm. in my case because I'm so small it is no problem at all. The ride is sweet! much better balance. If you are looking to go bigger on the tire and still want a good tire clearance it would suggest a 140 tire. The 150 tire fits with no modification at all just in case your wondering.
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Old 09-06-2008, 06:06 PM   #16 (permalink)
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hey just wondering did u change the front tyre too or is it still the stock 110?

is there a need to balance the tires out more in terms of size?

e.g 110, 150 120, 150 etc...
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Old 09-19-2008, 09:59 PM   #17 (permalink)
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i kept he same tire in the front..but i should change it to a bigger size...as far as balancing ....i don't know much..
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Old 11-02-2008, 05:45 PM   #18 (permalink)
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2008 250r ninja


TO: IVANRULES

I love what u did with the tire on your 250R, I've been dying to get rid of that skinny rear tire. Thanks to you, now I know its possible without any drastic modifications. Have you done any bodywork modifications? I'm only asking for ideas as well. Do you know of any japanese websites where I can find cool aftermarket products? I ask because here in the U.S., the 2008 250 R is fairly new, so there isn't much on the market. Let me know please.
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Old 08-14-2009, 09:36 AM   #19 (permalink)
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I have a question regarding sidewall flex. I am about 220lbs and riding a 250 08 bike. I am looking to put better tires on the bike, and I am dwelling between the BT-16 Bridgestones and the Pirelli DIablo Rossos both in the 120/70/17 front and 150/60/17 rear. Any pros and cons? I don't see the sidewall flex being too much an issue, unless I am really pushing the bike. Should I go with a lower profile then, or stick to a smaller width?

Thanks in advance

E
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Old 02-01-2011, 08:56 PM   #20 (permalink)
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160 Rears for Ninja 250

Quote:
Originally Posted by BST001 View Post
Hey guys,
A friend of mine stuck a 150mm tire on his 2008ninja 250. Looks a ton better than the stock 10speed bike looking one that came on it. I was wondering how wide can you go without needing to mod the bike? Thanks!
On my 2010 Ninja 250, I've got Michelin Road 2 160/60/17 rears and 110/70/17 front with no mods what so ever. I had 150/60/17 but a nail went through it and decided to get 160s. It rides great with no change in negative performance and the positive attributes like high speed stability and better all around traction can't be conveyed enough. As long as you stay with the 60 profile or lower, you are fine.
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