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BIKELAND > FORUMS > ZX-14.com > Thread: Swing arm length NEW TOPIC NEW POLL POST REPLY
Bishopzx12


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Posts: 517
posted June 13, 2012 04:23 AM        
Swing arm length

I just ordered a swing arm yesterday. I was going to go with a 4-8"but decided to go with a 6-10". My original plan was to set the bike at 6" over stock. I figure this would be a good length for the track as well as continue to keep some weight over the rear for some hard street launches. However after talking to a buddy of mine who is big bike racer he tells me to set it up at 10". The bike will be geared at -1 in the front and +2 in the rear. It is lowered 1.5" in the rear and i plan to go 1-1.25" at the front forks. I plan to run a shinko 200 hook-up, and no i am not worried about the extra 1-2lbs in weight. If it become a problem i will have to diet, lol. I just like the idea of that much more contact surface. What are your inputs on a 10" over stock weekend/daily ridden bike and how will it perform on a back road hard launch when playing around with the guys. I have heard 10” should be a good length for the track if not more. As far as I go I am 280lbs a friend of mine who may ride my bike form time to time is about 165lbs
____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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Seno


Pro
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posted June 13, 2012 05:12 AM        
I could be mistaken but SWB is better for launching on the street, you wont have the traction on the street to launch as hard as the track.
____________
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BrucerZX14


Expert Class
Posts: 361
posted June 13, 2012 05:29 AM        
The Shinko Hook Up is a great tire for the track. I find it not so good on the street. Too soft for prolonged street use.

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Bishopzx12


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Posts: 517
posted June 13, 2012 05:32 AM        
All good information guys. The hook up has mad me a believer. My buddy has a gen 1 zx14 and before the hook on a street launch he never got the front wheel of the ground. The funny part about it he has a 180 hook up.
____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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zx12mark


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Posts: 1409
posted June 13, 2012 07:33 AM        
at 10 inchs on the street it`s gonna be like turning a school bus ,what the hell are you thinking.it will look like shit too.............
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Bishopzx12


Zone Head
Posts: 517
posted June 13, 2012 09:41 AM        
Well mark i have one question do you race your bike????

Second if you are knee dragger why would you buy a zx14?

Lastly when i was smaller and into the deep twisties I would not buy anything over a zx9r now that i have become a straight line maniac I owned a zx11,two zx12, 14, and now 14r

Considering this will be a cruiser bike that will see a lot of track time im not too worried about the look. Beside the zx14 is a piece of art it would take something more than a 10" arm to defoul it.

____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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eklipse636


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ZX-14
Posts: 6046
posted June 13, 2012 11:07 AM        
A 200 tire isn't going to hook any better than a 180.
I've been running a 180/55/17 since 2009 and had no problems. I will now go to a 190 because I couldn't find a deal on the Michelin power race 180 anymore.
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Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32

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zx12mark


Pro
Posts: 1409
posted June 13, 2012 12:00 PM        
quote:
Well mark i have one question do you race your bike????

Second if you are knee dragger why would you buy a zx14?

Lastly when i was smaller and into the deep twisties I would not buy anything over a zx9r now that i have become a straight line maniac I owned a zx11,two zx12, 14, and now 14r

Considering this will be a cruiser bike that will see a lot of track time im not too worried about the look. Beside the zx14 is a piece of art it would take something more than a 10" arm to defoul it.

i have been drag racing motorcycles since 1974.
any bike extended looks like shit.The art is in racing stock wheel base.
No fear of flipping why bother.

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RICH CRAFT 1


Zone Head
Posts: 680
posted June 13, 2012 12:29 PM        
Bishopzx12, the 10 inch over is a good choice, although I suspect Before long, you will be thinking. Maybe I should of went longer. at your weight and 68 inches there shouldn't be any problems on the street. the 200 is a good choice it's the only street tire, we will use! I guess if you have a bike that doesn't make a lot of power You can get by with less tire. but now that summer is here and track temperatures will be over 140° traction will be hard to come by, don't bring a knife to a gunfight. LOL

Ken
____________
Red 06 ZX14 RR

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Wheelie


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Old Man
Posts: 6902
posted June 13, 2012 12:42 PM        
quote:
quote:
Well mark i have one question do you race your bike????

Second if you are knee dragger why would you buy a zx14?

Lastly when i was smaller and into the deep twisties I would not buy anything over a zx9r now that i have become a straight line maniac I owned a zx11,two zx12, 14, and now 14r

Considering this will be a cruiser bike that will see a lot of track time im not too worried about the look. Beside the zx14 is a piece of art it would take something more than a 10" arm to defoul it.

i have been drag racing motorcycles since 1974.
any bike extended looks like shit.The art is in racing stock wheel base.
No fear of flipping why bother.
Been losing races since 1974? lol

wee

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Wheelie


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Old Man
Posts: 6902
posted June 13, 2012 01:16 PM        Edited By: Wheelie on 13 Jun 2012 20:16
quote:
I just ordered a swing arm yesterday. I was going to go with a 4-8"but decided to go with a 6-10". My original plan was to set the bike at 6" over stock. I figure this would be a good length for the track as well as continue to keep some weight over the rear for some hard street launches. However after talking to a buddy of mine who is big bike racer he tells me to set it up at 10". The bike will be geared at -1 in the front and +2 in the rear. It is lowered 1.5" in the rear and i plan to go 1-1.25" at the front forks. I plan to run a shinko 200 hook-up, and no i am not worried about the extra 1-2lbs in weight. If it become a problem i will have to diet, lol. I just like the idea of that much more contact surface. What are your inputs on a 10" over stock weekend/daily ridden bike and how will it perform on a back road hard launch when playing around with the guys. I have heard 10” should be a good length for the track if not more. As far as I go I am 280lbs a friend of mine who may ride my bike form time to time is about 165lbs
some good info posted Bishop, go 10" from the start, you don't want to add chain, you can always shorten it if you're not happy,

wee

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dakota9498


Pro
Posts: 1179
posted June 13, 2012 01:42 PM        
quote:
The art is in racing stock wheel base. No fear of flipping why bother.

Been losing races since 1974? lol

wee


You know he has, but it really isn't worth engaging someone who thinks that all you need is to add 10" to your wheelbase and you no longer have to "fear flipping". Because 200+hp and 100+ft-lbs of torque couldn't do that...lmao
____________
2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain


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Wheelie


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Old Man
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posted June 13, 2012 01:50 PM        
quote:
quote:
The art is in racing stock wheel base. No fear of flipping why bother.

Been losing races since 1974? lol

wee


You know he has, but it really isn't worth engaging someone who thinks that all you need is to add 10" to your wheelbase and you no longer have to "fear flipping". Because 200+hp and 100+ft-lbs of torque couldn't do that...lmao
I'm at 12" over and can't leave as hard as I want because of the wheelies, still manage 1.34-1.36 60ft times, 223 lb rider weight, at 280 the wheelies will be worse leaving really hard but Bishop can still have a great time on it at 10"

wee

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Bently


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2012 14r In Blue and no Mods!
Posts: 5428
posted June 13, 2012 01:56 PM        
quote:
quote:
Well mark i have one question do you race your bike????

Second if you are knee dragger why would you buy a zx14?

Lastly when i was smaller and into the deep twisties I would not buy anything over a zx9r now that i have become a straight line maniac I owned a zx11,two zx12, 14, and now 14r

Considering this will be a cruiser bike that will see a lot of track time im not too worried about the look. Beside the zx14 is a piece of art it would take something more than a 10" arm to defoul it.

i have been drag racing motorcycles since 1974.
any bike extended looks like shit.The art is in racing stock wheel base.
No fear of flipping why bother.


No fear of flipping? and you have been racing since 74.

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dakota9498


Pro
Posts: 1179
posted June 13, 2012 01:59 PM        Edited By: dakota9498 on 13 Jun 2012 21:21

I'm at 12" over and can't leave as hard as I want because of the wheelies, still manage 1.34-1.36 60ft times, 223 lb rider weight, at 280 the wheelies will be worse leaving really hard but Bishop can still have a great time on it at 10"

wee


Absolutely, 10" is great. I am at 9 and want to go longer, so I definitely agree with you about going longer, much easier to remove links than add them.
____________
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Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain


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Bishopzx12


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Posts: 517
posted June 13, 2012 02:35 PM        
Hmm good information. I actually decided to go with and 8-12" arm. A first i was going to get an 6-10" but i figure if the are the same price i might as well get the 8-12" and have the extra room to go longer. Good information on the 10" i just may go that long. I have a 155 link ek zzz chain on order as well as well as a 34" SS black brake line. I have a question at 10" will the KTRC cable long enough. Also as far as the front tube what are you guys at i was thinking of sliding them through about 1.25"

FInally Mark i use to run a 1375 zx12r on stock wheel base the gen1 zx14 was th first bike i stretched and havent looked back
____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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kaw-rick


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Posts: 1167
posted June 13, 2012 02:38 PM        
zx12mark did you get a 14?
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Wheelie


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Old Man
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posted June 13, 2012 02:39 PM        
quote:
Hmm good information. I actually decided to go with and 8-12" arm. A first i was going to get an 6-10" but i figure if the are the same price i might as well get the 8-12" and have the extra room to go longer. Good information on the 10" i just may go that long. I have a 155 link ek zzz chain on order as well as well as a 34" SS black brake line. I have a question at 10" will the KTRC cable long enough. Also as far as the front tube what are you guys at i was thinking of sliding them through about 1.25"

FInally Mark i use to run a 1375 zx12r on stock wheel base the gen1 zx14 was th first bike i stretched and havent looked back
yes the wire is long enough for 12" over. I think 1.25" is to much, but see what others say.

wee

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RICH CRAFT 1


Zone Head
Posts: 680
posted June 13, 2012 03:28 PM        
if you look at the triple tree, around the shocks on the side closest to the grip. There is a shiny spot that sticks up above the shock, I moved mine down until that goes away or the top of the shock even with the top of the triple tree, any more than that. You will crash the front fender, in to the upper section on a big wheelie. if you do move them, only do one at a time.if they go past the point. You want them to be. It is really hard to get them back down. The best way I've found to get them to move a little bit is get a rag and a rubber hammer and tap on the triple tree and move only small amounts at a time. Unless you have a way of getting the whole front wheel off the ground with no preload on it.

Ken


____________
Red 06 ZX14 RR

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Bently


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2012 14r In Blue and no Mods!
Posts: 5428
posted June 13, 2012 03:39 PM        
quote:
quote:
quote:
The art is in racing stock wheel base. No fear of flipping why bother.

Been losing races since 1974? lol

wee


You know he has, but it really isn't worth engaging someone who thinks that all you need is to add 10" to your wheelbase and you no longer have to "fear flipping". Because 200+hp and 100+ft-lbs of torque couldn't do that...lmao
I'm at 12" over and can't leave as hard as I want because of the wheelies, still manage 1.34-1.36 60ft times, 223 lb rider weight, at 280 the wheelies will be worse leaving really hard but Bishop can still have a great time on it at 10"

wee
Come on wee, grow a pair, you heard markiemark say you can't flip it!

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smokinZX14


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Posts: 10197
posted June 13, 2012 03:53 PM        
If this was the old gen 1 i would have no problem running 8 to 10 arm .. I have a 10 over arm on my ZX14R and wish like hell i did what Wee did and got a 12 over arm ..
____________
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Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95

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Bishopzx12


Zone Head
Posts: 517
posted June 13, 2012 04:08 PM        
Rich and wee, would a rule if thumb be 1"
____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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Wheelie


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Old Man
Posts: 6902
posted June 13, 2012 04:20 PM        
quote:
Rich and wee, would a rule if thumb be 1"
you're a big boy so think about that, my tubes are even with the top of the bar, also you will have to do something with the rear shock, maybe a gen 2 Booza spring on your shock?

wee

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Audio


Expert Class
Posts: 117
posted June 13, 2012 07:47 PM        
Bishop

I'm around your size i'm 280 suited. I have a 8 over on my 2012 14 and seems to be good with no nos. That said I have ordered a 12 over after talking to wee, hope it comes in tomorrow and I get it put on for PMRA this weekend, I will report the difference.
I also have a 08 14 with a little motor work that a spray 50 shot on with a 10 over arm and i have a hard time keeping the front-end down in second gear, putting a 16 over on it soon will report the difference.

____________
Audio
2008 ZX14 Old Gray CNC-1414 old new CNC ?
2012 ZX14R SE Green CNC-?

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Bishopzx12


Zone Head
Posts: 517
posted June 13, 2012 09:40 PM        
Wheelie i will look into that suspension set up. Audio thanks for the input as well it really great to get info from a fellow big man rider. I think i may just do +10 for now that way i still can do some good launches in the street. When more modifications come out in the next year or two and we start seeing the bike make 240-260hp i will either then go tthe +12 or trade my arm in and go +15 or more. I am gogi to lower the front as suggested in the meantime 1/2-1" at the forks, 1.5" lowe in the rear, +10" arm..

Future mods:
Guhl FLash
Air shifter
30-40 shot
____________
1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R

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