Dirtbike correct tire pressure - Chicagoland Sportbikes
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post #1 of 28 (permalink) Old 09-15-2011, 12:10 PM Thread Starter
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Dirtbike correct tire pressure

Tire should be clean slightly around the bead. Side wall flexes slightly. Any truth to this? I think I was running a little too much. 20 was too high




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post #2 of 28 (permalink) Old 09-15-2011, 12:24 PM
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20 is way too high. I think I run 12-15 max.
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post #3 of 28 (permalink) Old 09-15-2011, 05:49 PM
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Quote:
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20 is way too high. I think I run 12-15 max.
This and adjust for terrain...

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post #4 of 28 (permalink) Old 09-15-2011, 05:52 PM
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8-10 for mud , 10-15 dry , run 2-3 psi more in front than rear
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post #5 of 28 (permalink) Old 09-15-2011, 06:26 PM
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Mr. Brad at club57 runs 12.5 in the front 11.5 in the rear. good standard, adjust as you see fit.

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post #6 of 28 (permalink) Old 09-16-2011, 03:35 PM
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20 PSI? At least you didn't have to worry about pinch flats.

I run anywhere from 10-12, depending on conditions.
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post #7 of 28 (permalink) Old 09-16-2011, 03:38 PM

 
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What does the manufacture say ???

Sorry!!!! you guys know better I'm sure.

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post #8 of 28 (permalink) Old 09-16-2011, 03:45 PM
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Quote:
Originally Posted by resurrection View Post
What does the manufacture say ???

Sorry!!!! you guys know better I'm sure.
I don't know if they even publish tire pressure specs for dirtbikes. I've run as low as 8 in really sloppy conditions but 12ish is what I usually run. Only time I go higher than 12 is if I will be riding somewhere that I know I will be running into a lot of rocks.
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post #9 of 28 (permalink) Old 09-16-2011, 03:55 PM
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Since there aren't any manufacturers on this forum and the question was asked on this forum, I don't see why there is an issue with people on this forum answering the question.

(plus since Grasshopper didn't bother to wash his tire so we can zoom in and see that the recommended values are printed right on the sidewall, it is hard to see what the manufacturer recommends)

I agree with the masses: 12 psi gets you close and adjust slightly from there.

Though taking advice from me on tires may not be a good idea, I have been known to run 50 PSI in my SM bike after Gio mounted some tires for me and I thought he reset the pressure. Went out and rode 3 sessions before bothering to check it.

I would wait for the manufacturer to respond.

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post #10 of 28 (permalink) Old 09-16-2011, 04:06 PM
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my fucking yamaha yz450f manual said 32 muffucking psi so I just ran 40psi cuz I've got skeeels.

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post #11 of 28 (permalink) Old 09-16-2011, 04:13 PM
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I run 10 in the front and 15-20 out back, but I do that as I like a nice loose backend. Hammer the throttle and steer with the rear.




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post #12 of 28 (permalink) Old 09-16-2011, 04:17 PM
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Quote:
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I like a nice loose backend.
Yeah I bet you do.
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post #13 of 28 (permalink) Old 09-16-2011, 04:18 PM
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Quote:
Originally Posted by Ryan View Post
Yeah I bet you do.
that didn't take long LMAO




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post #14 of 28 (permalink) Old 09-16-2011, 04:18 PM
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Quote:
Originally Posted by HDTony View Post
I like a nice loose backend. Hammer the throttle and steer with the rear.
look for the off color Tnat response to this in: 10,9,8...

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post #15 of 28 (permalink) Old 09-16-2011, 04:57 PM
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20 psi? phuckin n00bs...













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post #16 of 28 (permalink) Old 09-16-2011, 04:59 PM
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who checks tire pressure on a dirtbike? if it's not flat it's good to go! (my pressure gauge is broken)
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post #17 of 28 (permalink) Old 09-16-2011, 05:47 PM

 
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Quote:
Originally Posted by Moto804 View Post
Since there aren't any manufacturers on this forum and the question was asked on this forum, I don't see why there is an issue with people on this forum answering the question.

(plus since Grasshopper didn't bother to wash his tire so we can zoom in and see that the recommended values are printed right on the sidewall, it is hard to see what the manufacturer recommends)

I agree with the masses: 12 psi gets you close and adjust slightly from there.

Though taking advice from me on tires may not be a good idea, I have been known to run 50 PSI in my SM bike after Gio mounted some tires for me and I thought he reset the pressure. Went out and rode 3 sessions before bothering to check it.

I would wait for the manufacturer to respond.
A wise guy ha.

That's all good if you need someone else mounting you tires save your dumb ass remarks for someone that can't turn a wrench

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We offer three kinds of service @ Resurrection
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I'd love to help but I don't chase parts.
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post #18 of 28 (permalink) Old 09-16-2011, 05:47 PM
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good fuck nick, where you rock climbing with those tire pressures?...lol



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post #19 of 28 (permalink) Old 09-17-2011, 12:52 AM

 
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I also wonder what psi helps the the tire survive??

My experience with this topic is limited because as a kid I stuck to the not flat off road and maybe a little more for the ride across town.

But the whole physics and (think about it factor is )your tire must contain the bikes torque.

A lighter bike with less power can hold the tire with less psi.

I'm sticking with the design #'s

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

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post #20 of 28 (permalink) Old 09-17-2011, 01:03 AM

 
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I looked it up .

In my Friday stupor. and ya know what they say 10-20lbs @ Dunlap Seems you fellas proved my point.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.

Last edited by resurrection; 09-17-2011 at 01:11 AM.
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post #21 of 28 (permalink) Old 09-17-2011, 10:35 PM
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Quote:
Originally Posted by resurrection View Post
A wise guy ha.

That's all good if you need someone else mounting you tires save your dumb ass remarks for someone that can't turn a wrench

so sensitive
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post #22 of 28 (permalink) Old 09-17-2011, 10:37 PM
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Quote:
Originally Posted by resurrection View Post
I also wonder what psi helps the the tire survive??

My experience with this topic is limited because as a kid I stuck to the not flat off road and maybe a little more for the ride across town.

But the whole physics and (think about it factor is )your tire must contain the bikes torque.

A lighter bike with less power can hold the tire with less psi.

I'm sticking with the design #'s

drunk post?
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post #23 of 28 (permalink) Old 09-17-2011, 11:11 PM

 
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Yep anything after 3pm yesterday

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #24 of 28 (permalink) Old 09-19-2011, 02:33 PM
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I found this after a quick google search:

http://www.motorcycle-usa.com/379/74...uct-Guide.aspx

To save people reading the full thing and keep it focused on this discussion, here is what they had to say about the offroad stuff. Sums it up pretty well I thought:

"Proper inflation depends entirely on where you are riding. High speed, rocky terrain requires higher psi to avoid pinching tubes and tacoed rims. However, leaving 18 pounds in after a weekend desert ride and then hitting the muddy forest trails for a mid-week outing will probably result in a soil sample. As a general rule of thumb, 11-15 pounds will get you through most terrain in suitable fashion, but don't be afraid to experiment with the pressure a bit as you get more comfortable with your tires. Just make sure to make slow and steady adjustments. Elevation can also have an affect on inflation so it never hurts to pack a pump before you head out to the mountains. Always be sure to check your pressure and adjust it accordingly.

Another thing to keep in mind with off-road tires is the rim lock, also called a bead lock. Since flats are more common off-road, these little babies can mean the difference between getting back to the truck or a long, miserable night. We like to run our rim locks pretty stinkin' tight. Small punctures can sometimes be fixed on the trail with patch kits or slime (though this should only be used as a temporary fix to get you home), but if the tire spins too violently on the rim it will tear the stem out of the tube, and then there's no hope for a simple repair. Make sure not to cinch the nut down so tight that it damages the rim, but we like to give ours an extra little twist just to make sure it's going to hold."

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post #25 of 28 (permalink) Old 09-19-2011, 02:45 PM
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Quote:
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20 is way too high. I think I run 12-15 max.
This dude knows what's up!
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post #26 of 28 (permalink) Old 09-19-2011, 03:17 PM
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Quote:
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This dude knows what's up!
yeah this dude does know what's up but homeboyd didn't know how his compression release lever worked.

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post #27 of 28 (permalink) Old 09-19-2011, 03:55 PM
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yeah this dude does know what's up but homeboyd didn't know how his compression release lever worked.
SNAP

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post #28 of 28 (permalink) Old 09-19-2011, 04:20 PM
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