Author Topic: Surface dependent tire pressure adjustments?  (Read 948 times)

Offline Ultraman Zoffy

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Surface dependent tire pressure adjustments?
« on: May 17, 2010, 07:26:02 PM »
As a general rule, I run my tires (Freq. G's) at 120 psi. Recently though I switched riding spots from a really nice basketball court to a parking lot at the university I work at... from what I think I know, most basketball and tennis courts are laid out with a somewhat forgiving, cushioning surface so that folks don't blow out their joints when playing on them. My rolling tricks feel REALLY good and solid at the bball court; the feedback from the ground when pushing forward into tricks is great at 120, and everything feels solid when rolling.
On the other hand, the university parking lot (where I moved to because the foot traffic at the courts started becoming a pain in the a*s to deal with) is a really hard, non-forgiving asphalt. At 120, pushing into tricks and rolling them just feels really squirrelly, and it seriously feels like I'm a beginner doing basic rolling tricks there. Tons different then the bball court... spinning is fine, but controlled rolling just seems harder there, and I'm suspecting I'll need to adjust my pressure.
So, long story short, do any of you folks adjust tire pressure regularly for different spots? And how much do you do it by depending on where you ride? I remember one of my Japanese bmx mags have a chart with surface pics and the recommended pressures you should run, but I think I lost that issue when I moved back from there... Thanks in advance!

Offline ortho

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Re: Surface dependent tire pressure adjustments?
« Reply #1 on: May 18, 2010, 03:29:30 AM »
Seems like the rougher the surface, the harder i need to run my tires. Otherwise rough stuff is too slow or smooth stuff is too slippery.

driveway kind of grooved cement or asphalt lot = 130psi

typical parking garage semi-smooth concrete or tennis/bball court = 120psi

ultra smooth contest surface = 100psi

I could be crazy though.

Offline Ginman

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Re: Surface dependent tire pressure adjustments?
« Reply #2 on: May 18, 2010, 01:11:05 PM »
smooth to ultra smooth surfaces (SUPER CLEAN) = 120 PSi (you wont ever skid without dust!)

smooth to ultra smooth surface (WITH DUST) = 100 PSi (anti skid)

semi rough or rougher surfaces = 120 PSi (prevents your tire from carving thus, loosing speed)

i use ares A-class 1.75 (white logo)

Offline mare

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Re: Surface dependent tire pressure adjustments?
« Reply #3 on: May 18, 2010, 03:18:08 PM »
i always run my tires at 140psi. my main spot is covered with smooth concrete and its very slippery but i got used to it. so thats the reason why riding on any other surface is piece of cake. yeah other surfaces feel slower definetly bit i simply cant fall cause i have a feeling im riding on a sand papper hehe. this is just my experience not what u should do :beer: