Tire options?

[KillerTofu]

I'm looking for a simple way to increase rear height without lifting or dropping the bike with any links or messing with the front forks.

For tires I know that the first number is the tire width in mm. The middle number is the sidewall height aspect ratio. So a 110/70/17 tire measures 110 mm in width and the height is 70% of 110mm with a diameter of 17in for the rim size. (Please educate me if any of this is incorrect because that's about ALL I know.)

My question is if I run option 1 - 120/60/17 with a 150/70/17 instead of option 2 - 120/60/17 with a 150/60/17 like most people do will this affect any type of performance or handling? I don't ride track or anything like that I just commute to work. Just wondering if anybody has done this or has any insight on these options. Thanks!

[Alex]

It's more a question of what will fit without rubbing the chain guard, the chain itself, and the front section of the swingarm. Some 150/60's fit well. Some don't. I'd imagine that there might be some 150/70's that might fit, but it would be an even smaller list than the prior small list.

[EMSRacer07]

I copied and pasted from this link: http://faq.ninja250.org/wiki/Ride_he...ent_tire_sizes

Tire sizes and ride height
Figuring out the difference in ride height between different tire sizes is relatively simple. We'll use a common replacement size for the rear, 130/90-16. The first number (130) is the width of the tire in millimeters. The second (90) is the aspect ratio (profile), or how tall the tire sidewall is as a percentage of its width. To get the sidewall height and figure out the difference in ride height, you just multiply the width by the aspect ratio (expressed as a decimal). So, for our example the math works out this way:
130/90-16 Sidewall height = 130 x .9 = 117
And a shorter tire would look like this:
120/80-16 Sidewall height = 120 X .8 = 96
So, the ride height difference is 117-96 = 21mm
If you need inches to visualize the difference, divide 21/25.4 = .83 inches
But wait, you say; there are sidewalls on the top and bottom of the tire. This is immaterial for calculating ride height, as the extra diameter above the axle does not affect the height of the bike. Only the distance from the axle to the ground affects the change in ride height.
Remember also that tire sizing is not an exact science, even between different tires from the same manufacturer. So, a 120-width tire may be 118mm or 123mm. The few millimeters won't make any noticeable difference.

And with a taller and wider tire the more the tire will weigh. So it will affect your performance a bit.

[KillerTofu]

Originally Posted by EMSRacer07

I copied and pasted from this link: http://faq.ninja250.org/wiki/Ride_he...ent_tire_sizes



And with a taller and wider tire the more the tire will weigh. So it will affect your performance a bit.

awesome...thanks