Question about tire sizes!

claymaker · July 13th, 2012, 11:56 AM

My 100/80/16 is nearly bald and I am buying a new front tire for my 250. If I bought a 130/80/16 would that fit on the rim or would the 130 be too big? Would any size as long as the 80/16 fit?

FrugalNinja250 · July 13th, 2012, 07:17 PM

I don't even think that'll fit between your forks, and definitely not inside the front fender. The most common size to replace the stock tire with is 100/90-16, it's slightly larger in diameter which makes the speedo slightly more accurate in many cases. The 130 size is typically found in the rear, and again most people go with a 90-series which is slightly larger in diameter. Both sizes, 100/90-16 and 130/90-16, are much easier to find in a variety of tire models and brands than the stock 80-series tires are.

Motofool · July 14th, 2012, 09:50 AM

The metric designation:

"The 130 designates the tire's width in millimeters, measured in a straight line through the tire from one edge of the tire's tread to the other. The second number, 90, is a bit trickier to understand. This represents the aspect ratio between the tire's width and its height, or how tall a tire is in relationship to its width. Simply put, the higher this number is, the taller the tire will be. In this case, the tire is 90 percent as tall as its width, or 117mm.

The last number, 16, is the tire's rim diameter expressed in inches."

http://www.americanmotorcyclist.com/...ignations.aspx

The geometry of the bike would also change, increasing rake and trial and messing the steering balance.

7oxSin · July 14th, 2012, 09:55 AM

Man thanks! I know I'm not the OP but that was very helpfull!
Posted via Mobile Device

Snake · July 14th, 2012, 01:26 PM

Some people have been able to fit a 120/80/16 but I would not recommend it it's not a good idea steering wise, to go with a wider front tire.

July 13th, 2012, 11:56 AM	#1
claymaker ninjette.org newbie Name: Clay Location: Dallas Join Date: Jul 2012 Motorcycle(s): 2007 Ninja 250 Posts: 5	Question about tire sizes! My 100/80/16 is nearly bald and I am buying a new front tire for my 250. If I bought a 130/80/16 would that fit on the rim or would the 130 be too big? Would any size as long as the 80/16 fit?

July 14th, 2012, 09:50 AM	#3
Motofool Daily Ninjette rider Name: Hernan Location: Florida Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot. MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16	The metric designation: "The 130 designates the tire's width in millimeters, measured in a straight line through the tire from one edge of the tire's tread to the other. The second number, 90, is a bit trickier to understand. This represents the aspect ratio between the tire's width and its height, or how tall a tire is in relationship to its width. Simply put, the higher this number is, the taller the tire will be. In this case, the tire is 90 percent as tall as its width, or 117mm. The last number, 16, is the tire's rim diameter expressed in inches." http://www.americanmotorcyclist.com/...ignations.aspx The geometry of the bike would also change, increasing rake and trial and messing the steering balance. __________________________________________________ *Motofool* *.................................Never ride faster than your guardian angel can fly* "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí

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July 13th, 2012, 07:17 PM	#2
FrugalNinja250 ninjette.org certified postwhore Name: Frugal Location: Dallas/Fort Worth (DFW) Join Date: Mar 2010 Motorcycle(s): Several Posts: A lot.	I don't even think that'll fit between your forks, and definitely not inside the front fender. The most common size to replace the stock tire with is 100/90-16, it's slightly larger in diameter which makes the speedo slightly more accurate in many cases. The 130 size is typically found in the rear, and again most people go with a 90-series which is slightly larger in diameter. Both sizes, 100/90-16 and 130/90-16, are much easier to find in a variety of tire models and brands than the stock 80-series tires are.

July 14th, 2012, 09:55 AM	#4
7oxSin MSF Coach! Name: Lupe Location: Antioch, Tennessee Join Date: Jun 2012 Motorcycle(s): 2003 ninja 250 Posts: 886	Man thanks! I know I'm not the OP but that was very helpfull! Posted via Mobile Device

July 14th, 2012, 01:26 PM	#5
Snake ninjette.org certified postwhore Name: Rick Location: Alexandria, Louisiana Join Date: Jan 2009 Motorcycle(s): 05 Blue Ninja 250 Posts: Too much. MOTY - 2017, MOTM - Jan '19, Oct '16, May '14	Some people have been able to fit a 120/80/16 but I would not recommend it it's not a good idea steering wise, to go with a wider front tire.