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SPROCKETS
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Question SPROCKETS - May 12, 2008, 05:47 PM

I'm thinking of changing my sprockets & chain on the busa. Was told to go -1 front 17 to 16 and +2 rear 40 to 42. Has anyone here done this? I just want to use more of the torque in the 1/4 mile. Anyone know if this makes a huge difference or just a small change? Thanks for any input that is given!
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May 12, 2008, 05:56 PM

went -1/+4 on my TL and keeping the damm front wheel down is a pain in the ass.


MARK DIEDERICH
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May 12, 2008, 06:19 PM

That was why he said to only go +2 in the rear...wanted to make sure that would not be too big of a problem. Was told I may have to buy a $24 strap for the front end.
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May 12, 2008, 06:30 PM

Making changes to your front sprocket will have the most impact. Conventional wisdom says to shoot for a rear:front ratio of 3 for the street. Most sportbikes come stock with tall final drives (ratio < 3.0). However, you have to consider that you will hit a point of diminishing returns if you go too short on the final drive system, especially with larger displacement bikes. Afterall, the better acceleration isn't much good if you can't keep the front wheel down. With a busa, maybe you can try -1 in the front + stock rear size. However, adding two teeth to the rear probably won't change it much more. I recommend Renthal or AFAM sprockets. Get a Vortex rear if you want to wear through it quickly.

Here's a suggestion for further reading:
http://www.sportrider.com/tech/146_0306_grng/index.html

And a suggestion for further viewing:
http://video.aol.com/video-detail/dieter-nows-the-time-on-sprockets-when-we-dance/1728372867


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Last edited by OrangeShirtDude; May 12, 2008 at 06:48 PM..
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May 15, 2008, 11:59 PM

Thank You
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May 16, 2008, 12:04 AM

Got my 16T AFAM on the way. $19.99 - it's a beautiful thing

Before I've only done the gearing with the 520 conversion on a well used bike.

But here I have a drive system with 1500 miles on it, and I really want to drop a gear. $20, why not?
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