Bigger Front Sprocket - Kawasaki Versys Forum
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post #1 of 47 (permalink) Old 03-26-2008, 08:53 PM Thread Starter
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Bigger Front Sprocket

I switched my front sprocket for one tooth more to drop the rpm's a bit at highway speeds and it worked great.
I found that at the speed I wanted to cruise at, the revs were a little high. One of the sales guys where I bought my bike suggested the change as he did that to his V-Strom.
At 130kph it drops the RPM about 1500.
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post #2 of 47 (permalink) Old 03-27-2008, 10:49 AM
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16t sprocket

Hi: Did you have to add any links to the chain.

live large
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post #3 of 47 (permalink) Old 03-27-2008, 08:25 PM Thread Starter
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no, there is very little difference in diameter and since the engine is the same as the ninja, the dealer had some readily available.
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post #4 of 47 (permalink) Old 03-29-2008, 05:02 AM
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A 16 tooth countershaft sprocket makes the gearing 6.66% taller. Indicated rpm in relation to indicated speed doesn't change, as the speed sensor is on the countershaft. The 16 tooth reduces speedometer error to about +1.5% and increases odometer error to about -6%. RPM at actual 60 MPH (98 kph) is down to about 4250 rpm... At an actual 130 kph, rpm is reduced by about 380 rpm to around 5640.
AFAM has a case hardened chromoly steel 16 tooth sprocket # 27500-16 for the Versys, as listed for Kawasaki ER-6N and ER-6F (European version): http://www.dc-afam.com/dc-afam/uploa...4.Addendum.pdf
Available from Importation Thibault Ltd (Canada), # 110-635F for $23.99.
In USA from Thumpertalk for $16.62 plus shipping...

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post #5 of 47 (permalink) Old 03-29-2008, 10:18 AM Thread Starter
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Thanks for the more accurate technical specs, my observations were based soley on looking at the tach at speed, before and after, as well as feeling.

seems like you might be the guy to ask about any other techie stuff!!
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post #6 of 47 (permalink) Old 03-29-2008, 06:56 PM
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How is the bottom end feel on roll-on affected?
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post #7 of 47 (permalink) Old 03-29-2008, 08:48 PM Thread Starter
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Hooligan,

Roll on was affected a little bit, but nothing I haven't gotten used to. If you are able to accelerate normally then it's not a big deal at all. A lot of my driving is commuting to work, but I live in a smaller city, so traffic is not very heavy. If I had to do a lot of slow speed driving, I might not have made the change. I used to ride a DR 650 so I found the Versys a little more finicky when I first rode it. I also looked at the Vstrom before I got my bike and found the Suzuki slightly better at slow speeds, but attributed that to the larger front tire. It was actually the Vstrom that made me change the sprocket. The Vstrom I rode was a salesmans personal bike, and he had gone up one tooth on the front.
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post #8 of 47 (permalink) Old 05-07-2008, 07:19 AM
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Been running a 16T for 2000 miles, you get used to the slower accel pretty quick. This bike has plenty of low end so you want miss it. I get 53mpg on regular. On chain length, think I moved the axle up like 3/16", no links required.

Depending on the slack of the chain, I get a harmonic roar at +-50mph, but no biggie. The original CS had rubber dampeners the 16T I purchased does not.

My GPS shows the speedo now to be within 1 mph, before the bike was like 7% fast on speedo.

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post #9 of 47 (permalink) Old 05-12-2008, 12:45 PM
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I don't mean to sound stupid, but what is harmonic roar?
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post #10 of 47 (permalink) Old 05-12-2008, 05:19 PM
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Quote:
Originally Posted by Hankles View Post
I don't mean to sound stupid, but what is harmonic roar?
I first got this after a 220 mile run to let a buddy ride the Versys. He comes back and says, I didn't ride it too far, what is that loud noise? I go, what noise? I had been running with earplugs and 78 -80 mph on the interstate.

When I left I went a backroad and got stuck in traffic, like 50 mph, WOW! Big roar or noise like something loose, pull in clutch still there, drop below 50mph, gone, go above 52 gone, hmmmm.

If you adjust the chain tighter like .8" slack it almost goes away, but when it gets like 1.2" slack, it is at its worse. The stock counter sprocket has rubber embedded the new aftermarket 16T does not. The sprocket sets up a loud harmony if you will with the chain.

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post #11 of 47 (permalink) Old 05-16-2008, 10:33 AM
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Has anyone found a 16T with the rubber dampeners?
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post #12 of 47 (permalink) Old 05-16-2008, 03:12 PM
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Now that we have some parts and part numbers, does anyone have any instructions, detailed or otherwise on how to install the sprocket? Can a caveman do it? Any special tools required? Any photos, diagrams or step by step procedures out there? Thanks in advance.
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post #13 of 47 (permalink) Old 05-16-2008, 05:32 PM
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http://forums.kawasakiversys.com/showthread.php?t=281

http://forums.kawasakiversys.com/sho...ghlight=manual

With proper guidance, a caveman would surely be strong enough to do it with a 1/2" drive breaker bar and a 1 1/16" socket... Some use an pneumatic or electric impact wrench to loosen nut. I'd rather do it as specified in repair manual and avoid hammering the transmission gears and distorting some shafts. If you insist on the impact wrench, leave it in neutral to isolate the engine components. It's torqued to 92 ft-lbs. The rear brake is not quite strong enough, so I blocked the rear wheel with a lenght of 2" X 3"' wood in the swingarm, wrapped and carefully positioned to avoid denting the swingarm's thin aluminum...

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post #14 of 47 (permalink) Old 05-26-2008, 08:12 AM
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Thats a really interesting point.. i wonder how well 520 chain conversion might go then with a light driving mass weight. it would certainly go harder at all speeds..
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post #15 of 47 (permalink) Old 05-26-2008, 01:34 PM
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Thats a really interesting point.. i wonder how well 520 chain conversion might go then with a light driving mass weight. it would certainly go harder at all speeds..

?? What are you talking about? The Versys already has a 520 chain...
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post #16 of 47 (permalink) Old 05-29-2008, 05:12 PM
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Ninja 500r CS 13144-1269

I checked on ordering this sprocket (rubber dampened) but after $16+ for shipping, it was almost $50. All of the sudden my 16T doesn't make much noise after all, ha.

The Versys is perfect with the 16T, can't beleive it didn't come with one!

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post #17 of 47 (permalink) Old 06-06-2008, 09:05 PM
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Well, I just ordered mine. Still wondering what this noise you guys are talking about. If I do not like it, it's only $30.

Here is where I ordered from.
http://www.heartlandhonda.com/eshopp..._SPROCKETS.htm
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post #18 of 47 (permalink) Old 06-07-2008, 10:22 AM
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Mine is on the way also...$12.78. I get a discount at my dealership. WOO HOO!

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post #19 of 47 (permalink) Old 06-09-2008, 03:44 AM
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If you have enough mileage on the original crappy chain already, you may as well upgrade to a higher quality one with a new rear sprocket too while you're at it. I'll probably reinstall original unused 15 tooth sprocket on next year with a 112 link (114 stock) high grade chain with a 43, or with a 44 tooth rear sprocket (46 stock) if I switch to a taller (+2.73%) 150/70-17 rear tire...

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post #20 of 47 (permalink) Old 06-14-2008, 07:44 PM
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I installed a 16t sprocket on the front today. The Versys should come this way from the factory. I do get noise, however, and its fairly loud & in every gear. It seems louder when decelerating. I bought a Sunstar steel sprocket.

You know, as I sit here typing this, I can't help but wonder if the sprocket has proper clearance between it & the motor. I didn't even check that. I'm going to take it back apart tomorrow. It shouldn't be making that much noise...



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