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  1. #1
    New Recruit aowash's Avatar
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    Default Dropping 1 tooth on front sprocket

    I have an 06' Busa and dropped a tooth on my front sprocket. Now my bike doesn't feel nearly as powerful as it was and lost way more mid-range then I thought I would. The guys that I normally pull against from mid-range to top end are pulling away from me left and right. I knew that I would lose top end but d@mn!!!!! mid-range to Did anyone else feel the same, rather have the same result after dropping one tooth in the front? and if so please tell me how to fix it or I am going back to the OEM 17 tooth front sprocket.
    08' Hayabusa Orange & Black, BMC Air Filter, Full Yoshimura 4-2-1 exhaust, -1 Front Sprocket, BAZZAZ (Tuned by GP Bikes of Melbourne, FL)

  2. #2
    Seasoned Beef


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    Default Re: Dropping 1 tooth on front sprocket

    This isn't my thing, but I believe most go down 1 up front and up two in the rear for better low end. Of course you'll top out earlier

  3. #3
    New Recruit aowash's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Yea, some of my buddies do have that setup -1 front and +2 back, and they do have major torque, gues I thought I could get a little extra low end from just going down a tooth and was wrong. Sound like back to OEM 17 tooth.
    08' Hayabusa Orange & Black, BMC Air Filter, Full Yoshimura 4-2-1 exhaust, -1 Front Sprocket, BAZZAZ (Tuned by GP Bikes of Melbourne, FL)

  4. #4
    MotoGP Wannabe

    BA BUSA's Avatar
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    Default Re: Dropping 1 tooth on front sprocket


  5. #5
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by aowash View Post
    Yea, some of my buddies do have that setup -1 front and +2 back, and they do have major torque, gues I thought I could get a little extra low end from just going down a tooth and was wrong. Sound like back to OEM 17 tooth.
    It's your ride, you have the front and the back is way easier to change and not that expensive. You might want to go +2 in the rear and give it a try

  6. #6
    New Recruit aowash's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Yea, I just might have to, everyone that I ride with that does have the -1/+2 setup has a pretty nasty take off and scream until they hit their top out, just might try that.
    08' Hayabusa Orange & Black, BMC Air Filter, Full Yoshimura 4-2-1 exhaust, -1 Front Sprocket, BAZZAZ (Tuned by GP Bikes of Melbourne, FL)

  7. #7
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by aowash View Post
    Yea, I just might have to, everyone that I ride with that does have the -1/+2 setup has a pretty nasty take off and scream until they hit their top out, just might try that.
    Dayum I hit 170 and that was it

  8. #8
    On a Steel Horse I ride.

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    Default Re: Dropping 1 tooth on front sprocket

    I'm -1,+2 on my 08, and love it.
    If you're not living close to the edge, then you're taking up too much space.
    Fast is easy. Quick is hard.

  9. #9
    New Recruit aowash's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by BusaWizard View Post
    I'm -1,+2 on my 08, and love it.
    Was it a nice amount of low and mid-range added. I mean does it pull until it dies? because just -1 in the front pulls and dies a mid-range and is nothing at top end.
    08' Hayabusa Orange & Black, BMC Air Filter, Full Yoshimura 4-2-1 exhaust, -1 Front Sprocket, BAZZAZ (Tuned by GP Bikes of Melbourne, FL)

  10. #10
    Top Gun 2Wheels2Live's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by aowash View Post
    Yea, I just might have to, everyone that I ride with that does have the -1/+2 setup has a pretty nasty take off and scream until they hit their top out, just might try that.
    It doesn't make any sense that one tooth down up front lost you midrange and slowed you down? I did like most and went one down up front..big change for the better. My busa pulled MUCH harder everywhere. Now I'm 1 down/2 up and it absolutely CRUSHES my buds stocker from down low to top end. I'm sure if we ran till they quit pulling he might creep by on top, but he's so far back by the time we shut down its really ridiculous His bike feels slow as molasses compared to mine, we're talking sad slow
    The stock gearing on the gen1 busa is way too tall to have fun with

  11. #11
    MotoGP Wannabe

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    Default Re: Dropping 1 tooth on front sprocket

    Go -1 and +2

  12. #12
    On a Steel Horse I ride.

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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by aowash View Post
    Was it a nice amount of low and mid-range added. I mean does it pull until it dies? because just -1 in the front pulls and dies a mid-range and is nothing at top end.
    Pulls like a scolded Falcon. Of course I have the fastest color so that could contribute also. Org/Blk.
    If you're not living close to the edge, then you're taking up too much space.
    Fast is easy. Quick is hard.

  13. #13
    Seasoned Pilot aka Danksy's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    -3 Front and +1 Rear..... Wheelie Machine.
    2004 Hayabusa Blk/Prple
    2005 Corvette Z51 Monterey Red

    "I wish to do something Great and Wonderful, but I must start by doing the little things like they were Great and Wonderful." - Albert Einstein

  14. #14
    On a Steel Horse I ride.

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    Default Re: Dropping 1 tooth on front sprocket

    I wouldn't suggest running -3 on the front. Too much stress on the chain.
    If you're not living close to the edge, then you're taking up too much space.
    Fast is easy. Quick is hard.

  15. #15
    Hayabusa Immortal BigRod1300's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by aka Danksy View Post
    -3 Front and +1 Rear..... Wheelie Machine.
    Do they even make a 14t front Plus you would tach about 6+Rs at 55mph, thats just nuts. That small of a front sprocket would let the chain rub the arm at the arm/frame pivot area too?
    Last edited by BigRod1300; 08-18-2009 at 06:27 AM.

  16. #16
    Grippin' and Rippin'
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    Default Re: Dropping 1 tooth on front sprocket

    I'm +1, -1 and it's the SH!D !!!!! Locomotive power that keeps on going......as long as I get the launch.....I'm gone !
    Spudley, 05' R/B, "RUBBER SIDE DOWN ALL THE TIME, AND ALWAYS BRING YOUR A-GAME !!!".
    Amsoil Synthetics / Race Ready Painted Inner Panels / Bagster Tank Protector & Tank Bags / Hump Mod / ZG Double Bubble / Mirror Spacers / Custom Fairing Grills / Fast idle mod / +1" dogbones / EK ZZZ 530 / Michelin HPX's / TL 1000R Pegs / EBC HH Pads / 3/4" Risers / GPS Mod / Speedohealer V.4.0 / Galfer SS Lines / R1 Throttle

  17. #17
    Seasoned Pilot aka Danksy's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Yeah 14 is not ideal I'm changing it out soon actually.

    Probably 16/42 now that I know I can lift her off the ground

    It doesn't rub though! Blows through chain wax like you wouldn't believe ha ha
    Posted via Mobile Device

  18. #18
    I'm outta here!!!!

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    Default Re: Dropping 1 tooth on front sprocket

    I did not lose pull after installing my 16t.......it pulls all the way to the top.
    "In God We Trust"
    "Lifes tragedy is we get old too soon and wise too late"
    177.4 TX Mile March 2011
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  19. #19
    Professional Pilot

    street racer's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    You better count the teeth on that front sprocket. I have changed the front sprocket on the last 4 bikes I have owned and everyone of them showed a huge improvement in acceleration. I noticed you have a TRE which should remove the top end limiter so your top end shouldnt be much different. Gearingcommander.com shows speed at redline in 6th gear at 192.4 with a -1 in the front. Did you change anything else when you installed the front sprocket ?

  20. #20
    Hayabusa Immortal StromBusa's Avatar
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    Default Re: Dropping 1 tooth on front sprocket

    Quote Originally Posted by street racer View Post
    You better count the teeth on that front sprocket. I have changed the front sprocket on the last 4 bikes I have owned and everyone of them showed a huge improvement in acceleration. I noticed you have a TRE which should remove the top end limiter so your top end shouldnt be much different. Gearingcommander.com shows speed at redline in 6th gear at 192.4 with a -1 in the front. Did you change anything else when you installed the front sprocket ?
    +1, I'd recount both sprockets to verify, ratios are ratios, lower is lower. Also, +1 do not go to small up front. Changing the final drive ratio can have unintended results, like tear up swingarm bearings, cush drives, unexpected loss of traction etc. Everything has a tradeoff. I landed on my butt in reddog first time I dropped a tooth on a countershaft sprocket Cr125, Loved the new lift though, sheared all the bolts in the rear next.....
    "They sicken of the calm, who knew the storm"
    Dorothy Parker
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