spocket teeth count

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spocket teeth count - 1/22/2007 7:39:59 PM

silvr002001

Posts: 96
Joined: 11/7/2006
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What would be a good number of teeth for a a rear sprocket if I was looking to get a little quicker acceleration but not bust wheelies everywhere I go. Does changing a sprocket in the rear require changing the chain?

Post #: 1

RE: spocket teeth count - 1/22/2007 7:49:07 PM

bobjoezx

Posts: 2406
Joined: 9/27/2005
From: Wisconsin
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all depends on the bike.. a good number is 2 up in rear and 1 down in front.. and yes good idea to get a new chain.. you could just add links but do you really wanna be cheap about it when your goin 100mph

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RE: spocket teeth count - 1/22/2007 8:32:23 PM

crazy900rr

Posts: 159
Joined: 12/2/2006
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if your bike is all stock and low miles >3k there is no need for a new chain, the above post of -1+2 is a good general setup. Make sure you get sprockets that match your chain pitch.

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Post #: 3

RE: spocket teeth count - 1/22/2007 9:04:43 PM

silvr002001

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Joined: 11/7/2006
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I think I read somewhere that changing the front sprocket will affect your speedo? Maybe throw it off a bit. Really I would like to avoid anything like that. I was hoping to do something not too drastic to just the rear but I dont know if thats a goos choice or not.

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Post #: 4

RE: spocket teeth count - 1/22/2007 9:31:07 PM

bobjoezx

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From: Wisconsin
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well first of all if you are adding teeth to sprockets you will need to add a link or two and have to get the same size and know what your doing with a chain tool.. second.. the amount that it throws off you speedo is next to nothing but if you really care then get a speedo healer

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RE: spocket teeth count - 1/23/2007 7:47:10 PM

silvr002001

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hmm What kind of differences could I expect from the -1 +2 setup as opposed to just adding a couple of teeth to the rear. I think I'm going to buy a new chain regaurdless of weather or not I change the sprockets. I dont know how long the other one has been on. The bike has under 7k on it and is a 03. But I wouldnt hurt anyway.

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Post #: 6

RE: spocket teeth count - 1/23/2007 8:34:36 PM

bobjoezx

Posts: 2406
Joined: 9/27/2005
From: Wisconsin
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1 down and 2 up is pretty much the same as just 2 up or so... more you put on the back will shorten gears and make more tq and make top speed go down.. i went up -1 and 2 up i liked it for a while then i went up 5 up in rear so i could do long stand ups in 4th gear.. but personally i think i like stock the best for overall.. all depends on how you ride..

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RE: spocket teeth count - 1/23/2007 9:06:27 PM

silvr002001

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just out of curiosity, why do you like stock the best? Better all around ride?

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RE: spocket teeth count - 1/23/2007 10:23:28 PM

bobjoezx

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From: Wisconsin
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yes.. wheelies get old after a while.. like the power that stock 1st gear has.. after you go 2 up and 1 down it makes 1st to short

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RE: spocket teeth count - 1/24/2007 11:45:58 AM

mosh69

Posts: 14
Joined: 1/19/2007
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I went 2 up-1 down on my 954 and was really happy.
Of course I was chasing better power wheelies.
And I lost about 15 mph top speed and that was reflected on the speedo.
I was told by my wrench that 2 up 1 down would be comparable to 4 up.
Then I did 3 up 2 down on the 929 but it seemed pretty similar since the 929 has a little less power and hp.
Either way, I'd def recommend changing the chain w/the sprockets regardless of miles, just me.

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Post #: 10

RE: spocket teeth count - 1/24/2007 7:09:32 PM

silvr002001

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Did it seem like first gear was 2 short with that setup? I dont really want 2 many power wheelies, just a bit more go. I wouldnt mind if I could power wheelie 2nd but I dont want it to get in the way when I'm riding corners hard. Maybe just 2 up in the back with no changing the front?

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RE: spocket teeth count - 1/24/2007 8:44:14 PM

bobjoezx

Posts: 2406
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From: Wisconsin
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you could do that all up to you, can always buy the -1 down later how many miles personally do you have under your belt for riding.. what about for this bike.. because i didn't have a problem with power wheelies in 2nd gear, just saying might just wnat to keep stock and get a little better used to the bike but can't really say cause i dont know you, but sprockerts and stuff like that are easy to change if you have stands and basic tools, also a chain tool

< Message edited by bobjoezx -- 1/24/2007 8:45:38 PM >

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RE: spocket teeth count - 1/24/2007 9:03:56 PM

silvr002001

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personally on this bike hmmm maybe 500 miles. I know that is a bit low. I put about 8k miles on my previous bike an R6 and the bike I had before that I put probably 4k on it. So not incredibly experienced, I wouldnt really do too many power wheelies in 2nd. I think some of it is just knowing that The bike will. I watched a buddy of mine loop a clutch wheelie in 1st on a 600 and never really did em much after that. I'm actually not even positive that I'm gonna change the sprockets at all. I just thought it may be a good place to start modding. I was thinking of a power commander first but then I thought for what is actually done to the bike (slip on, air filter) I probably wouldnt benefit much from a power commander since there not a whole lot that would need to be changed as far as air/fuel. Maybe running a bit lean right now but not terribly. I do love the way the bike feels right now though and I would hate to interrupt any of the smoothness of it now and 1st gear is already short. As I mentioned I'm not really lookin to do wheelies. Thats one of the reasons I posted because I wanted a nice tight ratio that would allow for quicker acceleration but not make the bike wheelie crazy

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RE: spocket teeth count - 1/24/2007 9:07:57 PM

silvr002001

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oh ok I see what your saying there you could power wheelie 2nd w/stock gearing. Well its not something Ive practiced or anything. I been pretty abrupt with the throttle at about 8k rpms or so and she didnt come up. what rpm were you using in 2nd

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RE: spocket teeth count - 1/24/2007 9:27:28 PM

bobjoezx

Posts: 2406
Joined: 9/27/2005
From: Wisconsin
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Alright, well i see some things here that are your "problems" i guess you could say you only have 500 miles on this bike and you went from a 600 and a little scared of flipping the bike, which i understand but personally i dont think the problem is the bike doens't have enough power, it's that you dont know how to use the power that the bike has to get it up and to do what you want, i had 10k+ on my 954 and still didnt prob know how to use 100% of that power.. i also came froma 600.. a 600RR that i put 7k miles on that but it was my first bike.. second.... Get the PCIII BUT! get a custom map, i had just a slip on scorpion and a k&n air filter and i gained almost 8~RWHP! so i would personally go that route and get the air fuel mix perfect, and then try that, 8k rpms is to high already need to be lower and snap it.. but take it slow..

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