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Discussion Starter #1
Let me tell you the sprocket i quoted WILL fit
it took a little tapping but not much and the 12v adapter
i got at cycle gear and it is flush mounted in the right side fairing
and if you thread the wires through the frame they will reach the
battery

I will post pics of all the mods tomorrow when it is day light
so you can see the mods but let me tell u the sprocket works!

I can do about 35 in first without touching redline and when
i shift it is smoother and i am right in the power band

Makes it feel like a much faster bike and it was not shabby before
Plus the first gear starts are MUCH smoother

I agree with earlier poster it should have had a 15 tooth sprocket
from the factory

I love it!
 

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Discussion Starter #3
Ordered it off amazon it was 11 buck its the JT sprocket i have the model number
somewhere if u want ill get it and post it here
 

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Discussion Starter #8
ok the model I got is

jt516.15 15t steel front sprocket
they are on amazon for 11 bucks new
 

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I know Old3 did the same thing to his bike and has been raving about it. He has also confirmed that the speedo is more accurate now. I've already got this as one of the #1 bang for the buck mods to do for this bike once I get it.
 

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that sounds pretty cool actually...
 

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Discussion Starter #11
i can confirm soeedo accuracy with gps. i was never more than 1 mph off either way
 

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i can confirm soeedo accuracy with gps. i was never more than 1 mph off either way
It was not off from the factory? I have never owned a bike that was not off about 5% to 10%.. My 250R stock speed was off almost 10%, so after my Koso install I corrected that :)
 

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Discussion Starter #13
NO i meant it was not off from the time i put the new sprocket in
it was VERY off from the factory
 

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Discussion Starter #14 (Edited)
Here are new decals and new 12v adapter

hope these come out
 

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Discussion Starter #16
sprocket change was not bad
it did not slide right in like the factory one
but like very light tapping set it in very well
and i kinda like the fact i had to have it tapped a little
made for a more snug fit in my opinon
i rode about 30 miles earlier with it going up and down
the power band
huge increase in controllability and ease of use
i really like the difference it made
at one point i was crusing at 8 miles an hour in the
walmart parking lot without using the clutch
i was at 3k rpm in 1st
no sputtering just rolling it was actually really cool
reminded me of the old days cruising the strip in miami hehe
 

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noob question i know, but how does the amount of teeth on a sprocket effect the bike?
Think of the gear choices on a mountain bike.

When you are in the highest gear on a bicycle, you are using the biggest sprocket at the pedal, and your using the smallest sprocket at the rear wheel. By shifting to a smaller sprocket in the front, you decrease the teeth used, and thus increase the amount of torque while lowering your top speed in that gear.

Motorcycles don't switch between sprockets, thankfully we have a transmission for that. But the concept is essentially the same. In this scenario, they are adding a tooth to to the front sprocket. This means they can achieve a higher top speed in each gear the transmission uses, but loose some torque. This makes each gear "higher" affecting how the bike takes off the line, and your shift points.

Riders felt the first gear was geared too low, meaning it took no time to run out of gear. Some people were skipping 1st gear entirely since it was a hassle to use 1st for such a short period. With an added tooth, it makes first gear shift more towards how 2nd gear behaves. This means less torque, but the shift point is pushed up to a higher speed, so you don;t need to change to second as quickly.
 

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i really need to get the service manual and a decent tool set (i left mine behind when i moved south) to do awesome things like that. i would LOVE more controllability in first gear.

two questions:

1. does it affect the friction zone?
2. how hard/easy is it to do something like this?
 

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sounds like this is "a must do", when i get caught up with medical bills, i will have to put this as a first shipment with the FE kit, cause i will tell ya that first gear is annoying as $%$%^%^$
 
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