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Discussion Starter #1
Well did the 44 mod today and what a difference!! I can get through an intersection now with out upshifting:clap: Power is still there, but more smoother in delivery! I'm curious if anyone noticed an increase in gas mileage? Thanks everyone for all the posts and helping me to make my decision. Hoping for warmer days here in the soggy Northwest!
 

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If you kept the original front sprocket, your mileage should improve some as the rpms will drop as you cruise in any gear on the highway. How much though is difficult to measure since there are so many variables - wind, tire pressure, rapid acceleration, when you shift, etc, etc, etc.

But yes, theoretically, mileage will improve running at fewer rpms for a given speed.

Where did you obtain your 44T sprocket as I'm considering doing mine next month?
 

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perhaps they thought the versys is not a pure street bike, and needed a little more power? it has plenty though, so good question
 

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Gear Ratios?

Hey, twowheeladdict, the factory specification for the gear ratios for both the Versys and the Ninja 650R are identical for the 2009 models. Can't speak to the other years.

I get 60 mpg on the side roads and 50 mpg on the superslab on my 2009. And that's after repeated trips and checks.
 

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15T-46T: 3.067 - 0.0% TALLER 100% ENGINE SPEED 6000 RPM AT 78 MPH
15T-44T: 2.933 - 4.3% TALLER 95.7% ENGINE SPEED 5742 RPM AT 78 MPH
15T-43T: 2.867 - 6.5% TALLER 93.5% ENGINE SPEED 5610 RPM AT 78 MPH
15T-42T: 2.800 - 8.7% TALLER 91.3% ENGINE SPEED 5478 RPM AT 78 MPH
15T-41T: 2.733 -10.9% TALLER 89.1% ENGINE SPEED 5346 RPM AT 78 MPH
15T-40T: 2.666 -13.1% TALLER 86.9% ENGINE SPEED 5214 RPM AT 78 MPH
15T-39T: 2.600 -15.3% TALLER 84.7% ENGINE SPEED 5082 RPM AT 78 MPH

++++++++++++++++++++++++++++++++++
+15 FACTORY FRONT 46 FACTORY REAR+
++++++++++++++++++++++++++++++++++

SUNSTAR 43 TOOTH $49.99
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http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=24732&listingId=&sizeAttr=1420
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RENTHAL 39-47 TOOTH $49.99
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http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=5937&listingId=&sizeAttr=1420
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JT 40-45 $30.99-$31.99
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http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=24729&listingId=&sizeAttr=1677
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SUPERSPROX 40 OR 43 $89.95
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http://www.rockymountainatvmc.com/productDetail.do?navType=type&vehicleId=9113&navTitle=Drive&webTypeId=124&webCatId=9&prodFamilyId=22817
 

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Sprocketcenter - ok, thanks for both replies. Seems like 44T for $44. Easy to remember. Just returned to read this thread.

2 weeks ago did the speedy kit. This week doing the seat mod. Next month doing the sprocket, and am leaning to the 44T rear with original front.
 

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Hey, twowheeladdict, the factory specification for the gear ratios for both the Versys and the Ninja 650R are identical for the 2009 models. Can't speak to the other years.

I get 60 mpg on the side roads and 50 mpg on the superslab on my 2009. And that's after repeated trips and checks.
are you running the stock gearing?
 

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Running stock

Yes, Nytrydr, that's with stock gearing.

The two-lane roads are twisty and up-and-down hill.

Superslab is what it is. Boring in a way, but ride fast and furious or be run over around the metro areas.
 

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toofer
Which seat modification are you going with?:confused:
I have removed the seat and shaved it down from the top using a sharp knife and sandpaper.

Also have purchased the Walmart gel cushion found in their automotive department ($19.95). Until I achieve what I really like, I simply "shave", recover with the original vinyl using duct tape underneath and go out riding for 30-60 minutes.

It is trial and error, but I am getting close to what feels comfortable to me. Last night I had the bike out for 1 1/2 hours, and only thought about my buns on the bike 2 or 3 times during the entire ride.

With the original seat, I kept thinking of nothing but my buns on the bike and my sliding into the tank ( which is very uncomfortable).

I've been playing with my seat on and off for about 3 weeks. Besides the weather has been Yucky, so riding has been very limited. I discovered that merely sitting on the bike is not a fair comparison. Even when I have felt comfortable sitting on the bike in my garage, when I took the bike riding, I did not feel comfortable.

But, what I had last night was good, I will try to improve it some by trimming the Walmart cushion. What I have is essentially the original seat cushion shaved and trimmed down quite a bit and using the Walmart cushion on top of the original foam. The Walmart cushion will require some trimming as well.
 

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15T-46T: 3.067 - 0.0% TALLER 100% ENGINE SPEED 6000 RPM AT 78 MPH
15T-44T: 2.933 - 4.3% TALLER 95.7% ENGINE SPEED 5742 RPM AT 78 MPH
15T-43T: 2.867 - 6.5% TALLER 93.5% ENGINE SPEED 5610 RPM AT 78 MPH
15T-42T: 2.800 - 8.7% TALLER 91.3% ENGINE SPEED 5478 RPM AT 78 MPH
15T-41T: 2.733 -10.9% TALLER 89.1% ENGINE SPEED 5346 RPM AT 78 MPH
15T-40T: 2.666 -13.1% TALLER 86.9% ENGINE SPEED 5214 RPM AT 78 MPH
15T-39T: 2.600 -15.3% TALLER 84.7% ENGINE SPEED 5082 RPM AT 78 MPH

++++++++++++++++++++++++++++++++++
+15 FACTORY FRONT 46 FACTORY REAR+
++++++++++++++++++++++++++++++++++

SUNSTAR 43 TOOTH $49.99
-----------------------
http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=24732&listingId=&sizeAttr=1420
________________________________________________________________

RENTHAL 39-47 TOOTH $49.99
--------------------------
http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=5937&listingId=&sizeAttr=1420
_________________________________________________________________

JT 40-45 $30.99-$31.99
----------------------
http://www.rockymountainatvmc.com/productDetail.do?navTitle=Drive&webCatId=9&navType=type&webTypeId=124&prodFamilyId=24729&listingId=&sizeAttr=1677
_________________________________________________________________

SUPERSPROX 40 OR 43 $89.95
--------------------------
http://www.rockymountainatvmc.com/productDetail.do?navType=type&vehicleId=9113&navTitle=Drive&webTypeId=124&webCatId=9&prodFamilyId=22817
I find it odd that so many manufacturers make a 43 and 45 but no 44. I wonder why?
 

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I received my sprocketcenter.com Superlite 44t today and got it installed in about 30 minutes. I was pretty skeptical of a lot of the comments here but not any more. The sprocket really matches the bike so much better than the stock 46t. It is a much smoother relaxed ride now. Great mod.
 

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I too have changed rear sprockets- I went with a 43-tooth. Just bought a less-expensive JT sprocket; not knowing if I would really like this change or not.

Has sure made a nice change for highway riding- bike feels a lot more relaxed.
 

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yea i was looking for some feedback on that.

I am in between getting a 43 or a 44 tooth.
I ride 30 miles each way to work everyday and my trips are mainly highways or long windy roads. I DO ride 2 up so i dont wanna lose all my torque but wouldnt mind losing a little if it made cruising more efficient and less stress on the motor.

any opinions?
 

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Discussion Starter #19
BAMF I would go with the 44t instead of the 43t. Reason being if you are riding two up it might be too sluggish for you. There is only about a hundred rpm difference between the 44t and 43t. Go to gearingcommander.com and you can see the differences and play with ratios. Good luck and enjoy the change!:thumb:
 

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yea i was looking for some feedback on that.

I am in between getting a 43 or a 44 tooth.
I ride 30 miles each way to work everyday and my trips are mainly highways or long windy roads. I DO ride 2 up so i dont wanna lose all my torque but wouldnt mind losing a little if it made cruising more efficient and less stress on the motor.

any opinions?
I have the 43T which I chose because I mostly commute. It works fine for 2 up too, but my next sprocket is a 44T, because I find 43T to be just a little too tall.
44T is probably the Goldilocks sprocket. For me.
 
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