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Sprocket Questions

  #1  
Old 10-10-2010, 09:34 PM
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I was just looking at the forums and I see alot of f4i guys do -1 in front and +2 in the rear for better low end. Now I know then a speedo healer is needed but my question is How big of a differance is it over stock? Is it a mod worth doing? I do love hitting high speeds often, will this hurt top end really bad? I see alot of people like this for 2nd gear wheelies which im not into yet. I put a 4.10 in my stang and she rips out of the hole but then just dies around 90. Could I expect the same kind of results with -1/+2 set up? Thanks
 
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Old 10-10-2010, 11:42 PM
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also curious. i'm at -1 on the front now and i can still rip it past 150 when i need to. dont know if -1,+2 will push it too far down. i dont wanna be like the other bikes cruisin the highway @ 10k
 
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Old 10-11-2010, 12:13 AM
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i am very interested in this also. this is the next mod i want to do just not sure what i should do lo.


motorhorse does the just -1 in front give you a noticeable more low end?
 
  #4  
Old 10-11-2010, 12:36 AM
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I run -1 +2 and have no problems keeping with the packs I ride with.
The lower end power is very nice and I wouldnt change it.
 
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Old 10-11-2010, 08:28 AM
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There is a noticeable difference in low end speed. I'm planning on doing this as well. My brother and cousin have it on their 03 636 ninja, and 06 r6. As far as money/speed ratio, they say it's the best thing to do. Next would be a power commander and full exhaust imo.
 
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Old 10-11-2010, 08:50 AM
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Originally Posted by MuscleswitCBR View Post
How big of a differance is it over stock? Is it a mod worth doing? I do love hitting high speeds often, will this hurt top end really bad?
Go to the Gearing Commander website, load your bike's stock values from the drop-down menu and see on the charts what different gearing will do to it. On my 1000RR a -1/+2 drops 18 mph off the top end. Too much of a loss, IMHO.
 
  #7  
Old 10-11-2010, 11:43 AM
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i have just a +2 rear and the low end pull is quite nice. give the throttle a decent twist and the bike wants to leave me behind haha. im a bigger guy so no easy task.
 
  #8  
Old 10-11-2010, 12:41 PM
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im like 210-215
top end speed on my bike is nice.
looking to increase lower end now.
thanks for the gearing website.
gonna check that out


speedyf4i how much u weigh?
im trying to figure out if i wanna go
-1 and/or +2
 

Last edited by CodyJ28; 10-11-2010 at 12:57 PM.
  #9  
Old 10-11-2010, 02:04 PM
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To the OP, yes the -1+2 will hurt top end but will also make cruising quite annoying at 9k rpm on the highway all the time. If at all possible try to get a test ride in on a buddys bike to see if you like it. OR get a -1 front sprocket (25$ on ebay) so you can keep your stock chain and give that a whirl, still want more acceleration? then go -1+2 with a 520 setup.
 
  #10  
Old 10-11-2010, 02:49 PM
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Originally Posted by Sick97SS View Post
To the OP, yes the -1+2 will hurt top end but will also make cruising quite annoying at 9k rpm on the highway all the time. If at all possible try to get a test ride in on a buddys bike to see if you like it. OR get a -1 front sprocket (25$ on ebay) so you can keep your stock chain and give that a whirl, still want more acceleration? then go -1+2 with a 520 setup.
anyone in central oregon? i need a friend lol

what would be the difference going -1 in front
or just going
+2 in back?
 

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