68gts2
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Posts: 927
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posted October 22, 2010 06:58 AM
Post a pic of where you think the tire will rub Patrick. I can't see it in my minds eye.
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TH1RT3EN
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Trial And Error Control
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posted October 22, 2010 10:31 AM
the bike is filthy currently.. but here are 3 pics of what im talking about...
Side view
View from in front of tire looking towards the left side of swing arm
Top view looking down
If i can figure out the diameter of a 43, 45 & 46T rear sprocket i can figure out how much the tire will move forward and hopefully get one that will work.
Patrick
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When I was a kid i used to........... Wait I Still Do That!
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68gts2
Zone Head
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posted October 22, 2010 01:46 PM
The 43 is roughly 9'' accross. If we can get Superman T in on this he can answer this question . He has the same extensions and is just about at the same wheelbase.
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MotoCycho
Expert Class
Posts: 337
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posted October 22, 2010 01:52 PM
It will probably hit. You have to cut the bracket off if going much shorter. This creates a problem for the chain guard I know.. get an aluminum one from Tiger racing.. mounts solid at the other two points, works great!
FYI: it is .625 inches from pin center to pin center on your chain. You will shorten approx .3125 inches in wheelbase for every tooth you add to a sprocket and of course the reverse applies as you subtract. So you don't need to know the diameter of the sprockets.. necessarily that is.
43t = .625 inches shorter wheelbase (tire moves forward)
45t = 1.25 inches shorter wheelbase (tire moves forward)
46t = 1.5625 inches shorter wheelbase (tire moves forward)
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MotoCycho
Expert Class
Posts: 337
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posted October 22, 2010 01:56 PM
Sorry.. forgot to mention that is based on a stock 41t as the starting point.. which it looks like what you have on the bike in the picture.
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68gts2
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posted October 22, 2010 02:22 PM
Thanks MotoCycho.
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TH1RT3EN
Zone Head
Trial And Error Control
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posted October 22, 2010 03:05 PM
Thank you, And yes i am still running the stock 41T rear sprocket. Thank you for the info.. I will do some calculations and see what i come up with.
Patrick
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There is a fine line between Fear and Respect
When I was a kid i used to........... Wait I Still Do That!
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Newf14
Zone Head
2007 ZX1400
Posts: 563
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posted October 24, 2010 05:12 AM
I was at 16/44 gearing sitting at 64/65 inches I weigh 220lb with leather I was runnin 10.15,10.00. I moved my gearing to 16/41 and than went 9.98 I dont get much seat time but I try to make it count when I am there at the track.I am still going to try a few different combos of gearing for next year.
I have a plate put under my tail to keep it from rubbing through works great.
Newf14
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68gts2
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posted October 25, 2010 03:46 AM
Patrick we are waiting to. Know what your going to do.
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TH1RT3EN
Zone Head
Trial And Error Control
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posted October 25, 2010 05:16 AM
well currently i am looking to see if i can find a 15T front sprocket. I am also looking into a 45 or 46T rear sprocket. I am doing the rifleman insert this week when i get it in the mail. I may go make a few passes with just the insert and see where i am at and then change sprockets. I am currently waiting on my local track as well. Tomorrow is supposed to be the last day of the year. I was told that they will continue to run every tuesday depending on weather and temp. Hopefully it doesnt rain tomorrow and i will have a chance to go.
If i can find a 15T front sprocket I would like to run that with a 43 or 45T rear sprocket. The 43T is easier to find so i would like to run it.
Im just going over my pro's and con's check list currently.....
Patrick
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There is a fine line between Fear and Respect
When I was a kid i used to........... Wait I Still Do That!
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68gts2
Zone Head
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posted October 25, 2010 08:40 AM
I don't think you want to go any smaller than the 16 tooth on the front with the power the 14 makes.
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Chromed-out,in the dirt 08SE with all the good stuff!!!
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TH1RT3EN
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posted October 25, 2010 09:09 AM
yea i have been going over my numbers and i am not sure as of yet. I did find a 15T front sprocket from Sprocket Specialities. It runs 24.95 and is a steel sprocket. I think it would kill alot of my streetability. I think i am just going to do the 43T rear sprocket and maybe break down and add 2 or 4 links to the chain to maintain my legnth with the extensions.
Ill let you know what unfolds.
Patrick
____________
There is a fine line between Fear and Respect
When I was a kid i used to........... Wait I Still Do That!
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Newf14
Zone Head
2007 ZX1400
Posts: 563
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posted October 25, 2010 01:26 PM
I think a 15 tooth sprocket will kill your chain pretty quick as well. I have had no issues with my 16 tooth.
Newf14
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TH1RT3EN
Zone Head
Trial And Error Control
Posts: 722
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posted October 26, 2010 06:21 PM
FINALLY IN THE 9'S!!!
I FINALLY DID IT!!!
i made a total of 25 passes tonight at my local track. I finally started listening to myself and doing things the right way. At my local track you have to have a NHRA license if you run 9.99 or faster. I got kicked off the track after my Back-up pass.
My first best was
R/T........ .376
60'.........1.627
330...... 4.259
1/8...... 6.395
MPH... 114.79
1000... 8.268
1/4...... 9.939
MPH... 135.04
I totally missed my 3-4 shift at the big end of the track on the above pass. Everything else was right on track until i screwed it up. But i will take it, no complaints...
My Back-Up run was...
R/T......... .449
60'.........1.648
330...... 4.314
1/8...... . 6.489
MPH.... 110.71
1000.... 8.373
1/4....... 9.974
MPH.... 139.33
I have not made any changes to the bike since my last track visit. I am still running the 16t Front and 41T rear sprocket. The Rifleman insert is on its way but not here yet...
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There is a fine line between Fear and Respect
When I was a kid i used to........... Wait I Still Do That!
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Superman T
Pro
Posts: 1831
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posted October 27, 2010 03:49 AM
quote:
the bike is filthy currently.. but here are 3 pics of what im talking about...
Side view
View from in front of tire looking towards the left side of swing arm
Top view looking down
If i can figure out the diameter of a 43, 45 & 46T rear sprocket i can figure out how much the tire will move forward and hopefully get one that will work.
Patrick
TH1RT3EN-Same thing happened when I was at the same length and I had to remove the tab(Dremmel) in order for the tire not to rub. The chain guard is still held on by the 2 mounting screws on the front of the guard
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