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Raptor 660 Information => 660 Suspension Work => Topic started by: HK 45 Nut on May 22, 2011, 07:56:10 AM
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What are the pros and cons to going with an extended swing arm.
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longer helps keep the front end down when accelerating when you've modded the motor
being longer will decrease your turning raduis.
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In addition to the above, a longer wheelbase can smooth out the ride and ease hill climbing especially on steep grades.
But in addition to those downsides there is the extra weight of the arm. They aren't ubiquitous in part because they cost a good deal of money; in addition to the arm you need a new bearing carrier on the 660 and bearings plus a chain guide or slider or perhaps both. You'll need to re valve and or re spring the rear shock to handle the extra leverage. If you go too long you won't have enough weight over the rear tires and traction will suffer as will your drag strip times. Regardless you will need to rethink your tire and gearing strategy again due to weight distribution.
For the 660 the +4 seems to be the most popular middle ground for dunning while still being good in the trails. If you spend most of your time in the trails I would suggest a +2, if you are racing at the strip, up a sand or dirt hill, or just on some flat ground somewhere then it depends a lot on the terrain and how much motor you have.
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also, don't forget... never are totally sure an aftermarket swinger won't snap in half. Don't worry about that stock...For the price they are, one should not have to worry about that IMO
I prefer the look of the shorter swingarm length too. maybe +2, but no more.
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I am thinking +4 since I ride some trails but mostly play in the sand. I want to get it so I can do some minor engine mods like head work, cam and take it out to an 686. I want to keep it reliable and not have to worry and have it in the back of my head, is this going to be the last time I start it before i blows. I was talking to one of the guys ride with at work today. He went out sat morning to put his Banshee on the trailer and it decided to let go going up the ramp, he is right at 95hp. So much for him ridding this Holiday weekend.
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The stocker can safely be stretched 2-3" if you have a good welder.
+2 is good on a mildly modded raptor, especially if you flip the rear link.
I have just built a 719, & may now have to look at a longer swinger as it REALLY like to pull wheelies!
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In addition to the above, a longer wheelbase can smooth out the ride and ease hill climbing especially on steep grades.
But in addition to those downsides there is the extra weight of the arm. They aren't ubiquitous in part because they cost a good deal of money; in addition to the arm you need a new bearing carrier on the 660 and bearings plus a chain guide or slider or perhaps both. You'll need to re valve and or re spring the rear shock to handle the extra leverage. If you go too long you won't have enough weight over the rear tires and traction will suffer as will your drag strip times. Regardless you will need to rethink your tire and gearing strategy again due to weight distribution.
For the 660 the +4 seems to be the most popular middle ground for dunning while still being good in the trails. If you spend most of your time in the trails I would suggest a +2, if you are racing at the strip, up a sand or dirt hill, or just on some flat ground somewhere then it depends a lot on the terrain and how much motor you have.
"you use your tongue prettier than a 20 dollar whore" :thumbs: :rofl: :rofl: