December 10th, 2016, 08:14 AM | #1 |
ninjette.org member
Name: Matthew
Location: Richmond, VA
Join Date: Dec 2016 Motorcycle(s): 2003 Ninja 250r, 2004 CBR600 F41 Posts: 16
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Rear tire width
I'm in the process of gathering parts for a steetfighter conversion and I want to stick a super fat tire in the back mainly just for looks. What's the widest I can go without needing to do fabrication or something?
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December 10th, 2016, 08:31 AM | #2 |
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well a 130/90-16 Bridgestone BT45 is more like 138 or so and doesn't have a ton of clearance on the swingarm
You might be able to stuff a 150 in there if you scoot the wheel back as far as you can...? |
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December 10th, 2016, 08:59 AM | #3 |
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Name: Chris
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Different brands of tyre have different widths, regardless of what is on the side wall. You need about 5mm clearance to each side of the swingarm as a minimum to allow for tyre flex.
I have a 4x17" rim in the back of mine, its fitted with a BT45 140/70-17 tyre but measured its 149mm wide with no load. I have approx 10mm clearance a side, so could squeeze a 150-160 in there. I measured the original swingarm it has a maximum gap of 180mm where the tyre rim would be. |
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December 10th, 2016, 10:12 AM | #4 |
ninjette.org member
Name: Matthew
Location: Richmond, VA
Join Date: Dec 2016 Motorcycle(s): 2003 Ninja 250r, 2004 CBR600 F41 Posts: 16
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thanks guys im probably gonna go 140 i guess its not exactly practical to try and make my 250 look like the 600 i cant afford haha
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December 12th, 2016, 07:26 AM | #5 |
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Name: Miguel
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You might have an issue with the tire and the rim. I believe that I read somewhere that the factory wheel was designed for a 120 width tire, and then began to ship with a 130. A 140 might not seat correctly on the rim. Just verify before going to a tire shop to have it mounted.
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December 12th, 2016, 08:17 AM | #6 |
Guy Who Enjoys Riding
Name: Jim
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Right, Bridgestone has a chart somewhere on their site that shows what rim widths their various tire sizes are designed to run on. While correct seating on the rim is not likely to be a problem, excessive wrap would make the tire shape different from what it was designed to be.
The 130/90 BT45 I have on my 250 is plenty big. |
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December 12th, 2016, 11:03 PM | #7 |
Certifiable nontundrum
Name: Harper
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FLOOR-UH-DUH MOD!!!!!!!!!!!!!!!!!!!!!!! Rock on
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July 4th, 2017, 04:19 PM | #8 |
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Name: Samantha
Location: MOAB, UTAH
Join Date: Jun 2017 Motorcycle(s): 1993 Ninja 250R, 2013 Ducati Diavel Dark Stealth, 2005 Honda Rebel Bobber Posts: 73
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Curious what you ended up deciding on, would love to see pictures of it.
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July 4th, 2017, 05:51 PM | #9 |
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Name: RJ
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I have the Bridgestone bt45 in a 140 and I love it.
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July 4th, 2017, 06:22 PM | #10 |
ninjette.org member
Name: Samantha
Location: MOAB, UTAH
Join Date: Jun 2017 Motorcycle(s): 1993 Ninja 250R, 2013 Ducati Diavel Dark Stealth, 2005 Honda Rebel Bobber Posts: 73
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140/80-16? I'd love to see a picture of those.
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July 4th, 2017, 08:10 PM | #11 |
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July 4th, 2017, 08:41 PM | #12 |
Guy Who Enjoys Riding
Name: Jim
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They're the same ones I have on mine, except my rear is a 130/90-16. Handling is excellent.
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July 4th, 2017, 11:37 PM | #13 |
ninjette.org member
Name: Samantha
Location: MOAB, UTAH
Join Date: Jun 2017 Motorcycle(s): 1993 Ninja 250R, 2013 Ducati Diavel Dark Stealth, 2005 Honda Rebel Bobber Posts: 73
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Ha, I meant on the bike, silly. I'm curious what the larger size looks like.
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July 5th, 2017, 02:42 AM | #14 |
ninjette.org member
Name: RJ
Location: PA
Join Date: Dec 2015 Motorcycle(s): 2008 Ninja 250 Posts: 210
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I'll check when I get to work (about to ride out in 20min) I believe it's a 140/80/17 in the rear and a 120/80/17 in the front. I have a new gen though
Edit: it's 140/70/17 and 120/70/17 front. Pardon the bikes dirty appearance and the half shot of my plate in the second image lol. https://m.imgur.com/vTaFlx2 https://m.imgur.com/nIOIClj Last futzed with by Lazarus; July 5th, 2017 at 04:07 AM. |
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July 5th, 2017, 08:11 AM | #15 |
ninjette.org member
Name: Samantha
Location: MOAB, UTAH
Join Date: Jun 2017 Motorcycle(s): 1993 Ninja 250R, 2013 Ducati Diavel Dark Stealth, 2005 Honda Rebel Bobber Posts: 73
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Wow, I guess I must be used to my 240 on the Diavel as that tire doesn't look 'big' on your bike. I'm dreading being forced to switch out 16 to 17's....still trying for one more massive online search to magically pull up a 16" enduro tire.
Do you have a thread talking about your build? I'd like to know about your muffler and mudguard, too.
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July 5th, 2017, 09:04 AM | #16 |
ninjette.org member
Name: RJ
Location: PA
Join Date: Dec 2015 Motorcycle(s): 2008 Ninja 250 Posts: 210
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Ya I've only ever owned my little ninja so it definitely doesn't look big. I'm to impatient and lazy to do a build thread lol the muffler is from amazon (I'll check my order log and link you the url if you'd like.) The mudguard? Do you mean the plastic tail section that is black? Or the white tire hugger? If it's the latter it can be had off eBay for about 15$. It is a stock cbr 250 chainguard that I painted to go with the fairings.
Edit: https://www.amazon.com/gp/aw/d/B01L1...?ie=UTF8&psc=1 I've done a lot of mods thanks to this forum and members of it. |
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