June 4th, 2013, 10:42 AM | #1 |
ninjette.org newbie
Name: Alexander
Location: St.-Petersburg
Join Date: May 2012 Motorcycle(s): 250R Posts: 4
|
Once more... recommended tire pressure
So the question is. The recommended tire pressure for 130 rear tire is 32 psi.
But if the tire is changed to 150, what is the RECOMMENDED pressure? Seems to me that though the width is larger, the pressure actually should stay the same, because the bike's and the rider's weight remain the same. Any thoughts? |
|
June 4th, 2013, 10:49 AM | #2 |
crash 250, get supersport
Name: Richard
Location: San Diego, CA
Join Date: Apr 2010 Motorcycle(s): 2010 250R SE (Sold 6/9/14), 2009 ZX-6R (Sold 6/25/14), Subaru BRZ Posts: A lot.
|
I run 32 psi without any ill effects on a 150 Bridgestone. I believe you'd get a more definitive answer by contacting the manufacturer of your specific tire. 32 psi is a good starting point/baseline and you can fiddle around with it to found out how differences in pressure affect your riding so you can find an optimal psi for your riding needs.
My ZX6R has a 180 rear and I run 42-43 psi per the owners manual. |
|
June 4th, 2013, 10:53 AM | #3 |
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
|
Welcome to our site, Alexander !!!
Good thinking. The temperature of the tire after a long trip will tell you what pressure is the minimum: for street riding, tire side should be hot but no so much that you cannot keep your hand on it for a moment. Your rear suspension (and maybe a couple of undesired side skids) will tell you what pressure is the maximum. If the tire is not going to reach the normal operational temperature (like when it is raining), you may want to reduce the pressure 1 or 2 psi (low pressures increase the temperature and vice-verse).
__________________________________________________
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 |
|
June 4th, 2013, 11:03 AM | #4 |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
MOTM - Jan '13
|
32 front and rear for street ride just because.
Oh yeah that's for every tire size from 110 to 190 |
|
June 4th, 2013, 11:24 AM | #5 |
Cat herder
Name: Gort
Location: A secret lair which, being secret, has an undisclosed location
Join Date: May 2009 Motorcycle(s): Aprilia RS660 Posts: A lot.
Blog Entries: 6
MOTM - Jul '18, Nov '16, Aug '14, May '13
|
I recently read something interesting when looking into the crazy-high recommended pressures on my new GSXR (38F 42R).
Here it is: A tire that's been warmed up should have pressure 10 percent higher than it does when cold. If the pressure hasn't ridden by that much, the cold pressure is too high. If the pressure goes up by more than 10 percent, the tire is underinflated. The idea is that a tire needs to reach a certain temperature to achieve optimum traction and if you overinflate, it won't flex enough to get warm. If you underinflate, the reverse happens. I have no idea if the concept is valid or not, but the reasoning makes sense to me. I also verified the effect on my own... when I reduced cold pressures to 34/38 they did indeed rise to about 38/42 when hot. What makes this intriguing is that it provides a measurable benchmark for proper inflation, something more tangible than subjective calls like "too warm to touch comfortably" or "suitable for your riding style/conditions."
__________________________________________________
I am NOT an adrenaline junkie, I'm a skill junkie. - csmith12 Nam et ipsa scientia potestas est. Heri historia. Cras mysterium. Hodie donum est. Carpe diem. |
|
June 4th, 2013, 11:25 AM | #6 |
ninjette.org newbie
Name: Alexander
Location: St.-Petersburg
Join Date: May 2012 Motorcycle(s): 250R Posts: 4
|
Ok, gracias
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[visordown.com] - Caption that Recommended tyre pressure 600 psi | Ninjette Newsbot | Motorcycling News | 0 | April 7th, 2014 08:40 AM |
Best tire pressure ... | Davis937 | 1986 - 2007 Ninja 250R Tech Talk | 17 | February 17th, 2014 02:25 PM |
Tire Pressure Database | Asspire | 2008 - 2012 Ninja 250R Tech Talk | 15 | July 27th, 2013 08:59 AM |
Bt-45 tire pressure | indr | 2008 - 2012 Ninja 250R Tech Talk | 1 | July 5th, 2011 09:05 AM |
Tire pressure.... | Davidb1986 | 2008 - 2012 Ninja 250R Tech Talk | 31 | May 24th, 2010 12:59 AM |
|
|