AMA Formula Extreme Busa
- Thread starter busahigg
- Start date
busahigg
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See if I can get a bit better pic. Nope..........same size, anyways, if you can't read it..........1661 cc's, 250+ RWHP, 375 lbs and top speed is classified..........that is my new FAVORITE bike in the world.............I would love to hit the track with that thing!!!!!!
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Saw that bike at laguna last year. Very nice machine!!!!
Check Schnitz Racing for them. I know that the prices vary depending on what type you want to use. I think the adjustable ones are the most expensive, but they are less than $100 for a set if my memory serves me well.
Brian
EngIceDave
Registered
All Right!!
I get to use all my motocross experience to explain something on a 'Busa Board!! Whoo Hoo!!
Ok, at the bottom of your shock mount is a set of "dogbones"
It's a rising rate leverage system. The rate of "spring" changes as the shock compresses and the rear swingarm travels upward. This is how the same spring can feel soft and cushy on small stuff, but firm on big holes and bumps at speed.
It (dogbones) doesn't only change the ride height, it changes the progressiveness in the spring action...changing how and the feel of the shock itself.
Something you can try, with a lesser degree of effect, is to wotrk on what is referred to as "race sag" That is by tightening or loosening the shock collar.
Get a buddy (or two) and a tape measure to do this...Have your buddy lift up on the rear tail of the bike and take a measurement from the rear axle to a stationary point, say a seat bolt. write that measurement down.
Then, with the bike on the ground, have someone hold the bike up and have you standing on the pegs (not sitting) do the same measurement (Don't lift rear tail).
Write that down and calculate the difference.
By turning that shock collar, you can adjust the ride height, but keep in mind, it also alters the handling somewhat.
Keep track of the different measurements until you find a spot (number) you like...then you can always go back to that number...once you get really good at it, you can learn to change the measurement (number) for different tracks and twisties for better handling
I get to use all my motocross experience to explain something on a 'Busa Board!! Whoo Hoo!!
Ok, at the bottom of your shock mount is a set of "dogbones"
It's a rising rate leverage system. The rate of "spring" changes as the shock compresses and the rear swingarm travels upward. This is how the same spring can feel soft and cushy on small stuff, but firm on big holes and bumps at speed.
It (dogbones) doesn't only change the ride height, it changes the progressiveness in the spring action...changing how and the feel of the shock itself.
Something you can try, with a lesser degree of effect, is to wotrk on what is referred to as "race sag" That is by tightening or loosening the shock collar.
Get a buddy (or two) and a tape measure to do this...Have your buddy lift up on the rear tail of the bike and take a measurement from the rear axle to a stationary point, say a seat bolt. write that measurement down.
Then, with the bike on the ground, have someone hold the bike up and have you standing on the pegs (not sitting) do the same measurement (Don't lift rear tail).
Write that down and calculate the difference.
By turning that shock collar, you can adjust the ride height, but keep in mind, it also alters the handling somewhat.
Keep track of the different measurements until you find a spot (number) you like...then you can always go back to that number...once you get really good at it, you can learn to change the measurement (number) for different tracks and twisties for better handling
I bought the three hole dog bones for my busa lower it great.
Here is the part that will interest thoe of you looking to raise your rear. I put my stock dogbones on a girlfriends sv650. This loweres it about 2 inches. This means if you put stock sv650 dogbones on a busa it will raise it abour 2"
Don't worry about strength. The SV uses steel. Go to any used bike scrap yard. They shouldn't cost more than $5 for a used set.
Here is the part that will interest thoe of you looking to raise your rear. I put my stock dogbones on a girlfriends sv650. This loweres it about 2 inches. This means if you put stock sv650 dogbones on a busa it will raise it abour 2"
Don't worry about strength. The SV uses steel. Go to any used bike scrap yard. They shouldn't cost more than $5 for a used set.
It does not effect the compression of the suspension. It just changes the geometry to lower the bike. It will not change spring rate, dampning or travel.
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