Suspension settings for drag racing - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 14 (permalink) Old 07-08-2002, 08:49 AM Thread Starter
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Suspension settings for drag racing

Just wondered what you guys do to your bikes when you take em to the strip. I'm more concerned here with the people that don't have"drag specific" bikes but guys that ride them all the time and change some stuff at the track. Kinda figured since we havea drag racing forum we could pass along some useful info. I personally just strap down the front end, i'm not knowledgeable enough to screw with my suspenesion. But if anyone does anything pass it along and I'll give it a try this weekend. Some of the guys i ride with soften their rear suspensions to try and give the power somewhere to go other than pulling a wheelie and losing time.

"When in doubt..gas it."
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post #2 of 14 (permalink) Old 07-08-2002, 12:28 PM
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I'm with you , I'm not going to mess with somthing that workes for just a little of the end, but I have heard by more than one good source softening the rear makes it easier to wheelie.

one time...at band camp........
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post #3 of 14 (permalink) Old 07-08-2002, 07:19 PM Thread Starter
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See I had heard that stiffening up the rear makes it easier to wheelie. Stiff suspension means when you romp on it you won't lose as much power in body movement. hence that power becomes either wheelspin or a wheelie?? Made sense to me at the time anyway.

"When in doubt..gas it."
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post #4 of 14 (permalink) Old 07-09-2002, 07:05 AM
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see here we are with a good question, and nobody to set us staight, I think as you rear compresses it 'scoops' the front of the bike

one time...at band camp........
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post #5 of 14 (permalink) Old 07-09-2002, 08:32 AM Thread Starter
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Well we'll just keep writing back and forth and this will keep popping up in the active topics and eventually someone will anwser us. lol

"When in doubt..gas it."
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post #6 of 14 (permalink) Old 07-09-2002, 10:40 PM
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Doogie & wedge

The principles are different from roadrace or street riding. First of all, what are the following settings set @? :

Preload = ???
Compression = ???
Rebound = ???

I will need those numbers first. Once we have those #'s I will also need to know what the front suspension settings are!

The FRONT is RELATIVE to the REAR SUSPENSION.........

"Bring it down & Bring it on"!


Johnny
Team No Limit Racing
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post #7 of 14 (permalink) Old 07-10-2002, 05:15 AM Thread Starter
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Hmmm. I can't remember. Have to get back to you on that one. I know my preload (rear) is cranked down to two from max stiff and I added in a little rebound damping up front to try and stop the headshake, neither of which worked so it was pointless. I've been contemplating going back to the stock settings anyway so lets just assume we're starting with a bike with stock suspension settings. Besides I wasn't really looking for a setup for "my" bike specifically. Just some guidlines for everyone to maybe knock off a couple 1/10th's.

"When in doubt..gas it."
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post #8 of 14 (permalink) Old 07-11-2002, 10:37 AM
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Cool

Doogie!

The key to the rear suspension is how the swingarm is in relation to the pivot point under load. Meaning.............When you sit on the machine, is the machines' pivot point above or below the rear axle?

Ultimately, the pivot and the rear axle should be in line with each other while under power! See Attachment!

HOPE THIS HELPS!


Johnny
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post #9 of 14 (permalink) Old 07-11-2002, 10:44 AM
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I see the light

now its starting to make sense ........level , level is good

one time...at band camp........
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post #10 of 14 (permalink) Old 07-11-2002, 10:49 AM
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WEDGE......................Simply put!

DRAGRACING - LEVEL =
ROADRACING - LEVEL =
IN D CANYONS- LEVEL =

"Let the good times roll"!


Johnny
Team No Limit Racing &#169 1996
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