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hello
zx10r 2008 year model install iron rear sprocket vortex. I wonder if moving to an aluminum toothpick will give me a difference in acceleration?
 

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Pursebully
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Changing from a steel sprocket to aluminum will reduce unsprung weight. On a rotating part (such as your wheel), this will help reduce the gyroscopic effect and will help with handling more than anything. It's highly unlikely that you will feel any change though. That level of change is best noticed when you pair it with ultra-lightweight wheels (carbon fiber, magnesium, etc.). Mathematically, it could also be proven that it will reduce the amount of horsepower needed to get it turning, but again...you wouldn't notice it.

Changing the size of the rear sprocket to a higher tooth count on the other hand, will improve your acceleration and it will be noticeable. It will reduce your top speed though.

Also, aluminum sprockets wear out faster than steel.
 
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