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Gearing and Stock.
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Exclamation Gearing and Stock. - June 15, 2016, 08:47 PM

Quick Gearing question.

will the bike feel different or will there be any difference at all if you change the stock gearing and in essence make it mathmatically the same stock gearing?

Here is what I mean.

If your start with:
Front sprocket = 17th
Rear sprocket = 40th

and change it to

Front sprocket = 16th
Rear sprocket = 38th

We all know going down 1 tooth in the FRONT is equivalent to going up 2.89 (3th) in the rear.

since I am installing a taller tire (5mm) the extra tooth should compensate right?


over view

OEM 17f /40r
NEW 16f/38r (-1f/12r)
Should equal the same roughly mathematically...but by having a smaller front sprocket....and smaller rear sprocket will the throttle feel different or gas millage end up different?


The Nightmare of Summit Point
WERA Nov# 325 / CCS # 326
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June 15, 2016, 09:00 PM

It will feel the same.
But your chain will wear faster with the smaller front sprocket.
And you will have a bit more rear squat under acceleration with the larger rear sprocket ( will be changing the geometry slightly).


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June 16, 2016, 01:31 AM

Quote:
Originally Posted by Triple X View Post
It will feel the same.
But your chain will wear faster with the smaller front sprocket.
And you will have a bit more rear squat under acceleration with the larger rear sprocket ( will be changing the geometry slightly).
ah ok...
The rear sprocket will be smaller than OEM.

going from Rear 40 to Rear 38.


The Nightmare of Summit Point
WERA Nov# 325 / CCS # 326
2016 ZX10R ABS (Street) | 2011 ZX10RR(Race)
2011 R6 (Street & Track) | 2009 WR250F
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June 16, 2016, 11:15 AM

Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator

You can calculate your final drive ratio.


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