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Wheelie Bar or Extended Swingarm (Bracket Racing)

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RIDEHARD View Drop Down
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Topic: Wheelie Bar or Extended Swingarm (Bracket Racing)
    Posted: 27 October 2009 at 3:49pm
I have a 2009 Hayabusa with a Brocks Alien Head Pipe and lowered.  Everything else is stock.  I'm setting the bike up to Bracket race and I'm trying to decide if it is best to stretch the bike or get a wheelie bar and use a 2-step.
 
I also have a worked 2003 Hayabusa with a 10" Arm.  I don't think I want to have two long bikes (one fast and one not so fast).  Seems like it would be cooler to have one long fast bike and a stock bike with a wheelie bar that is consistent and can go pretty fast.
 
I can even take the bar off and ride on the street or race it short.
 
I raced my 03 last year and it is consistent but when I'm at the track I'm worrying about too many things other than riding.  Such as (filling NOS/CO2 bottles, bottle pressure, Race Gas, A/F ratios, ambient conditions, tire pressure, clutch, etc)  I almost need a pit crew...lol
To add insult to injury my motor blew a week before the 2009 Summit Racing Bracket Finals and I had to race my 09 Busa which was strictly a street bike.  I'm trying to prevent these issues which is why I'm trying to setup the 09 for next year.
 
Let me know if any of you have thought about this and what you decided on.  My main objectives are to be as consistent as possibly on the track and have a worry free stock motor.
 
Thanks
2003 Hayabusa (Drag Bike)
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lnelson View Drop Down
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  Quote lnelson Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 4:11pm
I have seen guys with no bar as consistant or more so than a bar bike. However, it can be done either way. For ME, a bar bike would would be the better choice for consistancy.  It really comes down to how you feel about it and your riding ability and style.
OLD GUYS RULE-THE OLDER I GET, THE FASTER I WAS!
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Bill Hahn Jr. View Drop Down
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  Quote Bill Hahn Jr. Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 4:23pm
It's kind of a toss-up, really.  When all is said and done, the bar bike should be more consistent, but that presumes a lot of very effective setup.  The bar does shock the chassis and can unload the tire, so setup becomes critical. 
 
No-bar fans like the fact that they can always achieve zero-shock, zero-unload launches, and on a slippery track, this can be a real advantage.  If one is proficient with the no-bar launch and can repeat well, it has its merits.
 
In the end, choose what suits your needs and desires best, and then optimize it.  Neither one is a sure-fire path to success.
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RIDEHARD View Drop Down
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 4:36pm
Thanks for the insight.  Well my 03 is a no-bar bike so I can always pull that out to appease the no-bar fans or hecklers that may think I can't ride.Wink
 
I tried racing the 09 at stock length and I can get some good numbers but the only way I can stay consistent is if I come out of the hole on the soft side.  Problem is that when I purposely try to leave soft my R/T suffers.  When I try to nail the launch I often time get better R/T's which is a must.
 
If a good 60' for a stock busa is in the mid 1.5's what would be a good 60' with the bar on it?  Low 1.4's????
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RIDEHARD View Drop Down
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 5:49pm
Anyone else switch to a wheelie bar bike after running a stock or strecthed streetbike?
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Stuartracing View Drop Down
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  Quote Stuartracing Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 7:11pm
I went from racing Abar bike to a 12" over ZX12R and love it.....I just got done dialing in a Hay`s Convertable Clutch in it and that made it even more enjoyable to race also.....I had 2 pass`s that were within a couple of thousand`s of each other....Button start, little to no crew, pump gas, no/little stress.....It`s fun again......
Life in the fast lane........
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  Quote TG1725 Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 8:50pm
i pretty much parked my bar top gas bike this year and started running 2 no bar bikes 1 in street fighter and et and the other one in top gas.at this point im a little more at home on the no bar bike.i don't think that you can just bolt on a set of bars on a stock busa and go. the bolt on the sets that i have seen the top bolt connects behind the passenger foot peg bracket that is part of the bolt on sub frame and the bottom bolts to the swing arm thats alluminum .looks to me that there would be a lot of flex. as for the bike still being streetable what about the strut that would have to be installed to go along with the wheelie bars?also i don't know how well a short stock wheel base would launch.may be the better option would be to put the bars on your streathed 03.just my 2 cents.good luck with want ever way you go.dave
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 9:20pm
Do you have to use a strut with a wheelie bar?  This one bolts on a little differently than what you are describing. See below....  Thanks for the good info....
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TG1725 View Drop Down
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  Quote TG1725 Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 9:43pm
Originally posted by RIDEHARD

Do you have to use a strut with a wheelie bar?  This one bolts on a little differently than what you are describing. See below....  Thanks for the good info....
that looks like a good set up but i would think that you would still need a strut but i would'nt know for sure.you could always try it and see.i remember SID POUGE tryed wheelie bars with a shock on his gpz1100 pro stocker back in the eighties .
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  Quote TG1725 Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2009 at 10:10pm
Originally posted by Stuartracing

I went from racing Abar bike to a 12" over ZX12R and love it.....I just got done dialing in a Hay`s Convertable Clutch in it and that made it even more enjoyable to race also.....I had 2 pass`s that were within a couple of thousand`s of each other....Button start, little to no crew, pump gas, no/little stress.....It`s fun again......
i've noticed that since i'm racing no bar bikes that people want to  go with me and help again.they don't have to do any work.LOL
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  Quote Stuartracing Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 9:46am
YES, You will need to put a strut on also......No way a shock would work with a strut....
Life in the fast lane........
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  Quote bigkawhuna Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 10:21am
the right shock can work with a wheelie bar..you need to be able to control the bump and rebound of  the shock...this way you can control the extension and compression...how hard it hits and how long it stays on the tire...to say it won't work...thats a little premature...i believe a fast bike with the right shock setup would be faster than a rigid bike...it would follow track irregularities and bumps and could lessen wheelspin on gear changes...
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 11:13am

It seems to me that a "properly setup" bar bike has the advantage over a stretched bike.  The question is, am I willing to set it up properly which would mean going to strut and maybe a flat slick tire.  Now the bike wouldn't be streetable which defeats my purpose.

I was almost sold on the wheelie bar but now it looks like extending the bike may be better and just have 2 chains handy so I can switch back to stock length when I want to ride on the street.
 
At this rate I'll need 3 bikes to be happy:
 
1)No Bar fast bike
2)Bracket Bike with Wheelie bar
3)Stock Length Street Bike
 
Big Boys with Big Toys............CycleCycleCycle
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  Quote Bill Hahn Jr. Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 12:21pm
Don't forget the fourth one: Funnybike or ProMod with HUGE tire and big POWER!
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 12:37pm
Originally posted by Bill Hahn Jr.

Don't forget the fourth one: Funnybike or ProMod with HUGE tire and big POWER!
 
Wink
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  Quote RIDEHARD Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 3:57pm
Just ordered some swingarm extensions which should arrive Saturday or Monday.  I'll test it out next week and see how it goes.  They were inexpensive so if I change my mind it's not like I'll be married to the setup.
 
Thanks for all of your input which helped me make this decision.
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  Quote Stuartracing Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 5:23pm
I ride my 12"over ZX12 on the street on a regular basis.....I don`t see you having any prob.`s with it being stretched.....I have 2 seats, a carbon fiber race seat and a Corbin seat for street riding....
Have fun with your setup....
Life in the fast lane........
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  Quote Bill Hahn Jr. Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 5:42pm
One other subtle aspect...high-powered streetbikes such as turbos or big N20 shots can suffer from too much additional length, as their ability to transfer weight to the rear wheel is diminished the longer you go on the arm. 
 
Like anything else, a good balance can be found, so match the arm to the task at hand...longer is not always better.
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  Quote Stuartracing Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 10:22pm
Originally posted by Bill Hahn Jr.

One other subtle aspect...high-powered streetbikes such as turbos or big N20 shots can suffer from too much additional length, as their ability to transfer weight to the rear wheel is diminished the longer you go on the arm. 
 
Like anything else, a good balance can be found, so match the arm to the task at hand...longer is not always better.
Exactly....That`s were a good suspension  setup comes in handy....
Life in the fast lane........
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  Quote Red, Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2009 at 10:39pm
Bar with a slick . . .
 
Red,    *<(:{)-
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