shiphteey
Needs a job
Posts: 2529
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posted September 08, 2007 08:02 PM
Bolt on extensions? Pros/cons?
Obviously the pros would be price and ease of going back to "stock". However, is there a point in terms of HP/Torque.....gearings.....60 fts....etc that one woud want to stay away from adding bolt ons? I've heard the stock zx12 swingarm isn't the most stout out there....and stretching it too far out with gobs of power seems like it would potentially twist the arm.
I feel like I'd be ok if i went with a 4" stretch on a 60 shot but I wanted to here from those in the KNOW.
Thanks in advance.
A.
  
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TRNorBRN6001
Needs a job
Posts: 2021
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posted September 08, 2007 08:26 PM
Should not be any problem at all I know a heavy hitter (that must be at least 50 to 70 lbs heavier than me) that used them on his 1270 with more than double the nos you want to use. Entropy and Buddy know Ralf as well..............................But you may loose a very little bit of HP from the added chain. JohnnyCheese might still have his extensions for sale as he was parting that bike out. He also has some other go fast parts such as OD 5th and 6th and some A-Beam carrillos as well.
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TFA 200MPH CLUB MEMBER!
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salsa1
Needs a life
Posts: 5971
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posted September 09, 2007 06:49 AM
Can launch much harder and have decent control over just stock wheelbase...don't know specifics with the 12R...at least 6" would amaze you...cut at least 2 tenths even while still learning to launch hard...
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Salsa1
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woppi
Pro
Posts: 1362
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posted September 09, 2007 08:29 AM
my mine:
works fine !!!
woppi
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KZScott
Needs a life
high on speed
Posts: 7235
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posted September 10, 2007 03:10 AM
I know a guy thats been using a set of home machined extensions set at 4 over on his 1270 for a few yrs with no problems, and mine are set up longer (but im still no spray and stock internals.) i dont see them as a weak point, they are very solid. im not worried about them...im not very good off the line yet, but i did manage to get a 1.65 60ft i really doubt that would be possible for me without the extensions and home made straps
woppi, is that a stock arm with added bracing (plus extensions) ? have any more pics of the arm itsself?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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woppi
Pro
Posts: 1362
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posted September 10, 2007 03:39 AM
yes !!!
yes i can show you more pics !!
it is a stock arm modified - underb. - extens. - gilles tooling chain adjuster
woppi, is that a stock arm with added bracing (plus extensions) ? have any more pics of the arm itsself?
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woppi
Pro
Posts: 1362
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posted September 10, 2007 03:40 AM
after saison, will give him a new paint
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KZScott
Needs a life
high on speed
Posts: 7235
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posted September 10, 2007 08:57 PM
sweet! i might have to do something like that over the winter... what are the specs on the tubing?.... should prevent any flexing of the arm, and still room to put the wheel in the stock location right?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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david hubbard
Parking Attendant
it is wht it is...ya dig
Posts: 1
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posted November 27, 2007 07:29 AM
i run a zx10.... and the bolt on work jus fine
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lil beast
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VincentHill
Needs a life
Posts: 6520
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posted November 27, 2007 01:15 PM
There IS one disadvantage! The Adjustment Range! I have from "0" to 6 Inches (Real Long Story about a Jerk in Indiana who has a BIG Web site! I would suggest having your arm modified to 0 to 6! This way you have everything for Good. SOmetimes 2.5 inches is what you need and the Stock will not get it and the extension will not get it! See if Doug Ray will make you one for about $400 "Spencer Cycle" Spencer NC He used to be a Board member here!
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Made History @ Daytona and still one fast old man!!
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted November 27, 2007 04:33 PM
Doug makes NICE stuff.
He even made an arm to make a friend of mines buell 68 inches, with a chain conversion......., it was pretty cool. Doug is great to deal with.
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42 Wins
21 Runner-ups
2010 TMRC Super Street Points Champion
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2009 PMRA Super Street Points Runner-Up
6 Time Centerville Dragway Points Champion
Sponsored by:
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VincentHill
Needs a life
Posts: 6520
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posted November 27, 2007 07:35 PM
quote:
Doug makes NICE stuff.
He even made an arm to make a friend of mines buell 68 inches, with a chain conversion......., it was pretty cool. Doug is great to deal with.
AMEN!!
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Made History @ Daytona and still one fast old man!!
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ninja12
Needs a job
Posts: 3310
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posted November 28, 2007 09:04 PM
Bolt-ons are strong and work very well for most people.
With 4" and a 60 shot you will be happy, and still have a few hundred dollar in your pocket.
It should not flex any more than a welded arm . There are turbos on bolt-ons.
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02zx12rbob
Expert Class
Posts: 496
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posted November 29, 2007 02:16 PM
Had'em on the 12 with a 40-50 shot for about 3 yrs. No problems.
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