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Discussion Starter #1
Hello everyone ~

This thursday I am schedule to replace my stock chain to DID gold chains.

Since I was changing chain I thought it was a good idea to change the

sprocket as well .

Right now I have 14T front sprocket , and 38T rear sprocket.

my bike is 03 999S and stock setting is 15T in the Front and 36T at the rear.

WHICH SET UP shall I go for ?

1. 14 + 38

2. stock + 38


I dont really care about the top end speed , since I ride mostly in the NYC .

some people were telling me that if I change both sprockets at the same

time , it will be a too much difference at once , which it will be hard to get

use to ~~~

what shall i do ????????????
 

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Old Wizard
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3,006 Posts
The popular choice for a 999S on the street is either 14/36 96-link or the equivalent 15/38 98-link chain. The 15-tooth front combo choice will result in a lower chain tension and perhaps a longer service life.
 

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Chilehead
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I like 14/39 on my 999R, which is about the same as 15/42.

I'll probably go to 15/43 when I need a new final drive set, which is the same ratio I use on my SS. (my ST2 has 14/43)

Tom
 

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Gearing

On my 2006 999S I'm running 14-38 and love it, easier off the line on the clutch than the stock (stupid) gearing, snappy power and wheelies so easy!!!
 

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15-38
Outstanding improvement. Good for NYC. No cab will beat you off the line.
If you're going to 520, get LT's engine case guard, too. Cheap insurance.
C
 

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Discussion Starter #7
The popular choice for a 999S on the street is either 14/36 96-link or the equivalent 15/38 98-link chain. The 15-tooth front combo choice will result in a lower chain tension and perhaps a longer service life.
thank you shazaam ` I have a question ~ when you say chain tension do you

mean when the chain is installed?? cant you adjust that ????
 

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Discussion Starter #8
I like 14/39 on my 999R, which is about the same as 15/42.

I'll probably go to 15/43 when I need a new final drive set, which is the same ratio I use on my SS. (my ST2 has 14/43)

Tom
I see ~~ 14/ 39 on a 999R ??????????? are you having hard time putting

the front wheel on the ground at 1st 2nd gear ???? wow !!! thank you for your

input!!! Is sound like an extream set up ~!!
 

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Discussion Starter #10
On my 2006 999S I'm running 14-38 and love it, easier off the line on the clutch than the stock (stupid) gearing, snappy power and wheelies so easy!!!
How is the wheelies ??? does it happen naturally during 1st and 2nd gear

when you open the throttle hard ??? Also how much top end did you loose??
 

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Discussion Starter #11
15-38
Outstanding improvement. Good for NYC. No cab will beat you off the line.
If you're going to 520, get LT's engine case guard, too. Cheap insurance.
C
Hey ~ thanks for the input ~!!! since you live at NYC where do you go to

maintain your bike ~ do you go to spring street ~???

Maybe we should gather up 999 in the city and have a ride out before it

starts to snow ~
 

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Premium Member
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Here is what to use for 999 or 999S, 14/39 great around town and highway.
The 999R has a different need for gearing and 14/38 also works great for that
bike. Larry
 

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Discussion Starter #13
Here is what to use for 999 or 999S, 14/39 great around town and highway.
The 999R has a different need for gearing and 14/38 also works great for that
bike. Larry
14/ 39T wouldnt this be too aggressive ?? I have people telling me

that with 14 / 38T set up its easy to wheelie ~!! with 39T on the rear

isnt it worse ~?
 

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Premium Member
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Top speed with 14/39 is around 145mph and top speed with 14/38 is around 150mph. For 2003-2004 999's which carry more weight than the 2005-2007 999's can use the 14/39 gearing which is not to aggressive for your bike.
Larry
 

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15-38
Outstanding improvement. Good for NYC. No cab will beat you off the line.
If you're going to 520, get LT's engine case guard, too. Cheap insurance.
C
That is what I'll be going with on my 999R when the stock set wears out. I bought a 38T Vortex cheap and I don't want to go with 14 front because of all the talk about straining the tranny. I don't want to get to the point of feeling like I need another gear at freeway speeds. However, having the 14T on my 916 was very good in the city, acceleration in first gear felt confident.
 

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Discussion Starter #16
That is what I'll be going with on my 999R when the stock set wears out. I bought a 38T Vortex cheap and I don't want to go with 14 front because of all the talk about straining the tranny. I don't want to get to the point of feeling like I need another gear at freeway speeds. However, having the 14T on my 916 was very good in the city, acceleration in first gear felt confident.
Could you tell me little more about the 14T set up in the front staining the

transmission thing ~!! Thank you.
 

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14/39 rocks...even though the guys at bcm asked me if I was lookin to join the circus :yeah:
 
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