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400EX bottoming out on jumps, what should I do?

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Old Apr 22, 2002 | 10:34 PM
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I weight 150 lbs and have a 01 400ex. I have pushed the front preload up all the way and still bottom out trying to clear the 25 ft tabletops. I land flat alot of the time from about 6-7 ft up. I can handle it easy but im worried about the quad. Would works dual rate fronts help alot or do I need a stronger swingarm? What to do....
 
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Old Apr 22, 2002 | 11:56 PM
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You need to land a little more on the rear tires first. If you are landing on all four, most of the weight is actually coming down on the front first due to the momentum. If you are traveling 25-30 feet in the air, you have time to assess how you will land and make an adjustment in the air. Try moving your body weight a little more towards the back and pull up on the bars. You can try giving it throttle but that never works to well for me on a 400ex.

Any shock other than the factory ones will help in the front. You should also make sure the rear one is setup properly. If you have the money, triple rates are nice especially for your weight. For people over 200 lbs, triple rates really don't work too well.

Are you near DeRisi in North Carolina? They have a test track onsite. They will rebuild the rear shock for your weight and ability, sell you front ones, and dial them in for you.

/NotuRaptor
 
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Old Apr 23, 2002 | 05:11 PM
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Im not sure where that is, I live in Greensboro. I am landing on the rear most the time and it feels akward. I will keep doing it though if the swingarm should be ok.
 
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Old Apr 23, 2002 | 05:30 PM
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Um,I thought that when u bottomed out.......you totally messed up your suspension. How can you keep doing it again without having to buy new shox? [img]i/expressions/face-icon-small-blush.gif[/img]
 
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Old Apr 23, 2002 | 08:52 PM
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Um. No. Bottoming out is when you reach the end of the suspension travel (shocks fully compressed)
 
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Old Apr 23, 2002 | 09:52 PM
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Shocks fully compressed and then they go back to normal. A whole lot of it will cause damage though so I wouldnt try to do it on purpose.
 
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Old Apr 23, 2002 | 10:02 PM
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I blew my stock front shocks on my ex from to much botteming.Honda replaced them free.The bike was only two months old.I also broke the swing arm on my 99ex and honda replaced that to.It was only 3months old when that happend.
 
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Old Apr 23, 2002 | 11:46 PM
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You are 131 miles from Casar, North Carolina

Here is the website in case you are interested.

DeRisi Racing

They rebuilt a blown rear shock for my girlfriend's 400ex. Set it up for a 120 lb rider. Her bike is like a caddy when I ride it. I can't jump it though since I weigh about 190 lbs.

You can almost land on all four tires at once. Just make sure the rears come down first though.

Are you sure your front shocks are still working? You shouldn't be bottoming out at your weight on a tabletop jump. If you push down on the front end, does it slowly come back up or bounce right back up?

/NotuRaptor
 
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Old Apr 24, 2002 | 06:18 PM
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special what kind of riding do you do and how much do you weigh? I found a deal on works tripple rate w/ rezzy's w/ 15 hrs on em for $300. Hows it sound?
 
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Old Apr 25, 2002 | 12:05 AM
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I ride on sx and mx tracks I weigh about 160.300 sounds like a good deal,plus their rebuldable.
 
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