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Old 03-18-2013, 03:12 PM   #16
catalina38
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Low tire pressure is only going to get you a flat tire and a bent rim. The previous photo shows good body position and be sure to steer with foot pressure not the bars. Look ahead to where you want to go, not down in front of the bike. Going fast will mask bad technique and since you will have to turn or slow down for obstacles at some point you may as well learn to do it right so you can go fast or slow, whichever speed is right for the terrain in front of you.
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Old 03-18-2013, 03:18 PM   #17
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Quote:
Originally Posted by catalina38 View Post
low tire pressure is only going to get you a flat tire and a bent rim. The previous photo shows good body position and be sure to steer with foot pressure not the bars. Look ahead to where you want to go, not down in front of the bike. Going fast will mask bad technique and since you will have to turn or slow down for obstacles at some point you may as well learn to do it right so you can go fast or slow, whichever speed is right for the terrain in front of you.
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Old 03-18-2013, 03:36 PM   #18
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In that pic my tire pressure is 30F/30R
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Old 03-18-2013, 04:01 PM   #19
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+1 on throttle:) get as fast as possible to a minimum of ~50-60km/h (30-40mph).. I also like to keep the rpms at about 5-6k.. then the front will somewhat float on top of the sand, staying on it's path more or less (the bikes momentum keeps it on the path I guess).. some say that it's better if you transfer your weight as back as possible.. It's scary, and I've seen bad accidents in sand.. but you have to build up and maintain speed (I know it doesn't seem logical when you are there, and it's scary), or the front will just wash out. You can kind of feel when you get to the minimum required speed, as the bike keeps going forward, no matter where the front wheel is pointing (ofcourse in limits). Also IMO the tkc front sucks in sand (at least for learning)... but then again the 9x0 also isn't the ultimate "how to learn riding in sand" tool

Edit: Sorry, I've read now, that you've been desert racing.. so nevermind my post:)
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Old 03-18-2013, 04:21 PM   #20
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I dont have a 990 but setting you clickers and tyre pressure is the key. It takes 5 minutes and will turn sand from a burden into a pleasure regardless of dampeners.

CLICKERS:

COMPRESSION - You need to be 3/4 to maximum hard
REBOUND - You need to be 3/4 to maximum hard plus 5 clicks (I think the WP have a vast amount of clicks so 5 should do.

This will keep your front wheel from bouncing too much and get your front wheel pushing back into the sand quickly where all the traction is.

TYRE PRESSURE:

Use the rim clean method - Take your front tyre pressure down to say (Big heavy bike hmmmmm) 15psi. Ride for a few hundred meters in dusty sand and if you see a line where the tyre has cleaned the edge of the rim that is the rim clean line. It needs to be about 2mm to be perfect but will vary slightly.

The pressure will vary from bike to bike, tyre to tyre. There is no set standard PSI

This Video will help with rim clean



Try these methods and I am almost positive you will get fantastic results.

Stu
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Old 03-18-2013, 08:40 PM   #21
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Originally Posted by icebergstu View Post
I dont have a 990 but





Take your front tyre pressure down to say (Big heavy bike hmmmmm) 15psi.

Stu

hahahahaha.....15 psi on a 990......hahahahahahahahaaa.....sigh.....hahahahah a
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Old 03-18-2013, 08:47 PM   #22
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It's not the tire pressure... trust me on this one.
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Old 03-18-2013, 11:12 PM   #23
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Sand scares the shit out of me in (on) any vehicle, and the fact that there seem to be as many notions about how to ride it as there are recipes for spaghetti sauce doesn't lead me to believe I'd be successful at it on the 990.

I think I'll take the pussy way out & avoid sand at any opportunity.
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Old 03-19-2013, 12:48 AM   #24
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hahahahaha.....15 psi on a 990......hahahahahahahahaaa.....sigh.....hahahahah a
As I said...rim clean cant be put down to tyre perssure but I figured you guys need all the help you can get... I dont own a horrifically heavy overrated Bajaj so I cant tell what good tyre pressure is which is why you use rim clean method.

Better than your idea anyway genius! ;)

Stu
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Old 03-19-2013, 03:00 AM   #25
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It's not the tire pressure... trust me on this one.
So Meoni had 30psi Mousse in his 950Rally when he won Dakar... A fully fueled 660Rally weighs the same as a 950A with 5L in the tank and they run mousse at about 15psi. Someone better tell the factory they're wrong.. First i've heard of rim clean but looks the goods thanks
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Old 03-19-2013, 03:46 AM   #26
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Lets not forget that stock rims are butter... Dropping pressure will increase the chances of these against a rock, tree seed, hard dirt or a very stiff desert worm

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Old 03-19-2013, 10:54 AM   #27
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Quote:
Originally Posted by Lc8grrr View Post
So Meoni had 30psi Mousse in his 950Rally when he won Dakar... A fully fueled 660Rally weighs the same as a 950A with 5L in the tank and they run mousse at about 15psi. Someone better tell the factory they're wrong.. First i've heard of rim clean but looks the goods thanks
Well if you run the rims that the factory supplies to Meoni et al and if you have a crew to change your mousse every evening and if you can loft the front wheel at anytime like a factory racer and if you get a new rim at not cost and if you can ride a taco'd wheel out like Meoni...and if you like advice from a guy who doesn't own a 9x0

try 15 psi....
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Old 03-19-2013, 11:48 AM   #28
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i rode my 990 for my first time in real deep dry 2 track sand in ocala FL (mefo rear and pirelli scorp front prob dropped air down to about 30-35) and after about a half hour i found if i hit the throttle and looked ahead as soon as i started to get squirrely it helped alot
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Old 03-19-2013, 12:51 PM   #29
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Gas, keep standard amount of air in the tire and then more gas. Get in the upper range of revs and find a spot where you can test riding positions. Try ride with the legs tight around the bike, standing and sitting. Get used to the amount of gas it needs.
What i think when riding is like go skiing and it just control with pushin the footpegs and gas.

http://www.youtube.com/watch?v=TiIsLi95fJ4
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Old 03-19-2013, 01:59 PM   #30
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Imagine there's a big dog barking and running behind you. Hit the gas, move your ass closer to the rear and aim your sight at where you want to go!

don't go too fast, some trees might not move away from your path fast enough!
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