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Posted

I am going to try a wheelie bar on my bike at Albany sand drags, i was wondering how far off the ground i should set the wheel off the ground for the best traction and launch? My bike is lowered to about 4 inches off the ground and i run shocks and not struts.

Posted

yea a pop can is what i set under mine but i run fresh dirt...if you run in everyone elses ruts or tracks then you might wanna go a lil more higher..depends on the track i guess...

 

 

 

our track is dirt and the ruts can get 3-5 inches deep at times...but i learned that if you set your bike up for launching in ruts then when it gets down to about 4 or 5 bikes left you end up getting fresh track and you run off your time...

 

hope that helps some

 

 

 

 

matt

Posted

yea the square is good..i used 1inch steel pipe..its hard to drill were its round..

 

just dont drill your holes to loose fitting becuase they will egg shape in no time and you'll have alot of play...

 

 

 

 

matt

Posted

How far off the ground the bar is means nothing what your looking for is weight transfer and that distance 4-5" will only work with certain length bars. What if my bar was 10' long then 4-5 inches would only lift the front tires a inch or so but if it was 6 inches long that would prolly lift it a foot. Most of the time we set are bar height by trial and error you want as much weight transfer as you can get but you dont want your bike bunny hopping all the way down the track so you lower it but too low wont give you any weight transfer and it will just spin. So every setup is different you will just have to try it.

Posted
How far off the ground the bar is means nothing what your looking for is weight transfer and that distance 4-5" will only work with certain length bars. What if my bar was 10' long then 4-5 inches would only lift the front tires a inch or so but if it was 6 inches long that would prolly lift it a foot. Most of the time we set are bar height by trial and error you want as much weight transfer as you can get but you dont want your bike bunny hopping all the way down the track so you lower it but too low wont give you any weight transfer and it will just spin. So every setup is different you will just have to try it.

 

What you say makes sence, my bar is 6'3 , 75 inches long.

 

I think i will make a rear strut and try it, thanks for all your guys input. :cool:

 

Posted

Just make the bar to where its adjustable.....I ran 2 1x1 bars bolted to lower holes in carrier, one from each side and one bar wit a T and some angle iron that bolts to where the grab bar goes and it runs BETWEEN the 2 lower bars, drill several holes in the middle bar, coming from grab bar area and run threaded rod through it with nuts.....the several different holes allow me to raise and lower the wheel..... depending on the track......

Posted
Thanks for the input, any info helps, and it looks like both you guys have your bikes set up well for drag racing,thanks again. :cool:

For Albany, 4"-5" is plenty if the track is being regularly groomed. :thumbsup:

Posted

if you are going to be running a shock on the back you are going to have to hook the wheelie bar just to the swingarm and when you set on it the bar is going to come off the ground.it will work but just going to have to play with it.around here they seem to hook better that way.i always just ran a strut in the rear and set it about 4 to 5inches off the ground.i made the bottom bars with 3/4 chromolly and the top bar was 7/8

Posted
if you are going to be running a shock on the back you are going to have to hook the wheelie bar just to the swingarm and when you set on it the bar is going to come off the ground.it will work but just going to have to play with it.around here they seem to hook better that way.i always just ran a strut in the rear and set it about 4 to 5inches off the ground.i made the bottom bars with 3/4 chromolly and the top bar was 7/8

 

 

the bikes around here do hook alot harder with a shock. Like butch said hook it up to your swinger. thats how mine was last year and worked good

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