psi - what do you prefer?
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Tonellin
Posimoto
dongalonga
AquilesT
jku87
9 posters
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psi - what do you prefer?
Just curious as to what you guys air down to when you hit the trails. I'm running 33" pizza cutters and was thinking that 20 psi should be sufficient? Thanks in advance.
Corey
Corey
jku87- Mall Crawler
- Posts : 69
Join date : 2012-07-02
Age : 37
Location : Boston, MA
Re: psi - what do you prefer?
35" and normally air down to about 15
AquilesT- Class 6A
- Posts : 198
Join date : 2013-08-15
Location : Roslindale
Re: psi - what do you prefer?
Depends where you're wheeling. Most trails don't necessitate airing down. Some do and some do more than others.
dongalonga- Rubicon Trail
- Posts : 1047
Join date : 2012-03-20
Age : 40
Location : Lowell, MA
Re: psi - what do you prefer?
8 to 10 psi - not only is the traction amazingly better the lower you go but the ride is way softer. Also depends on what tire you're running. Some lower ply tires will flex nicely without needing to drop very far. Generally anything above 15 psi doesn't do much since it only takes 12-15 psi to get a full contact patch for the streets
Tonellin- Rausch Creek
- Posts : 313
Join date : 2013-01-08
Location : Medford
Re: psi - what do you prefer?
MTR/Ks - easy/moderate trail, 18-20 psi ... difficult trail, 10-12 psi.
Re: psi - what do you prefer?
Tonellin wrote:8 to 10 psi - not only is the traction amazingly better the lower you go but the ride is way softer.
This. I will never wheel anywhere with pressure over say 12. Rattle your teeth out, feeling every little pebble. Have my auto deflators set for 9. Hell, I only air up to 24ish for the street.
janesy- Rausch Creek
- Posts : 330
Join date : 2012-04-03
Age : 38
Location : Beverly, MA
Re: psi - what do you prefer?
janesy wrote:Tonellin wrote:8 to 10 psi - not only is the traction amazingly better the lower you go but the ride is way softer.
This. I will never wheel anywhere with pressure over say 12. Rattle your teeth out, feeling every little pebble. Have my auto deflators set for 9. Hell, I only air up to 24ish for the street.
Same, Ill usually drop to 10-12 for trails, street I'm 24 front and 20ish rear
desertzj- Rausch Creek
- Posts : 311
Join date : 2013-04-29
Age : 33
Location : Norwood
Re: psi - what do you prefer?
It's really hard to say because there's no number that will work for everyone, or even for one person every time.
The biggest factors to consider are the tires you have and the rig you have. If you have a wide tire, you'll likely want a lower pressure than a skinny tire, everything else equal. If you have a light rig, you'll want a lower pressure than a heavy rig, everything else equal. If it's a technical, bouldery trail, you'll probably want a lower pressure than a smooth trail or the street.
For a TJ on 33x12.5 Duratracs, I have ~15-18 psi on the street (higher in the front than the back) and 5-10 psi on the trail (usually the same or a little lower in the front than the back). I let air out until the sidewall has a good amount of flat to it. I define "a good amount" by what feels right in the moment, based heavily on wind speed/direction and the time of high tide on that particular day.
The biggest factors to consider are the tires you have and the rig you have. If you have a wide tire, you'll likely want a lower pressure than a skinny tire, everything else equal. If you have a light rig, you'll want a lower pressure than a heavy rig, everything else equal. If it's a technical, bouldery trail, you'll probably want a lower pressure than a smooth trail or the street.
For a TJ on 33x12.5 Duratracs, I have ~15-18 psi on the street (higher in the front than the back) and 5-10 psi on the trail (usually the same or a little lower in the front than the back). I let air out until the sidewall has a good amount of flat to it. I define "a good amount" by what feels right in the moment, based heavily on wind speed/direction and the time of high tide on that particular day.
Rob Cote- Moab Dessert
- Posts : 673
Join date : 2012-07-11
Age : 36
Location : Ipswich, MA
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